Panasonic Inverter Microwave Oven H97 H98 Repair Fix

Repairing a Panasonic Microwave Oven with H98 and or H97 displayed

[@cherylbouvier4252]

Great video! Couldn’t clear the H98 on the reset, so I followed your steps and removed the magnetron. On inspection, it looked ok - no crack - but I decided to go ahead and buy a replacement on eBay for C$65. It arrived today, installed it, and voila! Functioning microwave! Thank you so much! Another appliance saved from the landfill!

[@davetravelstheworld]

where did you order your Magntron from? Did you get from CHINA? What type microwave model? I'm handy man but you think i can change?

[@greanfinisher4014]

@@davetravelstheworld I'm sure you could change it, but I certainly wouldn't replace the magnetron unless you first check it for grounds while the oven is unplugged. Personally, I would use a VTVM for the ground check rather than a DVM. If the ground check turned up negative, I would then check the magnetron with a high voltage DC probe while the oven is running. Actually, I think you're looking at 1.5KVDC - 2.5KVDC being applied to the magnetron. Be VERY careful if you do use that high voltage DC probe while checking that magnetron as those high voltages are lethal.

[@IC--mr8gi]

We are so grateful to you. We had an H97 error due to trying to run off our generator due to a power outage. We just went several months to save money to buy a new inverter microwave. I stumbled across your video AND IT WORKED!! Just had to clear the code. THANK YOU!!!

[@somuchtosay]

Same cause and fix worked for me, except mine was H98. Thanks!

[@miad8304]

You did an awesome job walking through that. Thank you!

[@maggielaw6201]

Did you fixed it ?

[@adrianluke2392]

Thankyou for the video. I just reset the system and she came back to life. Not sure why the error appeared in the first place though. Found this unit on the trash in my neighbourhood.

[@RedHeadForester]

Wonderful video, thank you. I just picked up a Panasonic inverter microwave with grill function from a scrap heap and it has the H98 code. The grill works fine, but it would be pretty cool if I can get the microwave function working too. A brief glance online suggests it's worth around £250 GBP brand new. I don't have the fancy diagnostic tools (yet... maybe one day!) so my first port of call will likely be to pull the magnetron and check the magnets, assuming there's nothing visibly wrong with the inverter. Nothing better than getting stuff for free and making it work for cheap!

[@adrianrodriguez936]

Thank you for posting this video. I totally just fixed my microwave.

[@malpnp]

I díd exactly what you said and “IT WORKS AGAIN” just reset it 👏👏👏 (sorry for my english is not very good) thank you from Mexico City!

[@user-st3vu2bv5w]

I had to replace the inverter board, one of the power caps was split and a trace had a spot burned off about the size of a pea. Once I had replaced the inverter board I could not clear the H97 error code until I found your procedure. It's all good now, thank you!

[@donglacville]

H97 & H98 ERROR CODE DISPLAY If 3 times H97 or 2 times H98 exist, microwave oven can not be used any more, even if the defective parts already be replaced & un-plug and plug-in again. HOW TO RESET FOR SERVICE 1. Plug-in oven. 2. Press Stop/Reset pad (button) once. 3. Open the door. 4. Keep pressing Start pad (button) for more than 2 seconds until buzzer beeps. 5. Press Stop/Reset pad (button) three times. 6. Press Start pad (button) once. 7. While finish resetting, one beeps, and shows “End”. 8. Press Stop/Reset to return to initial stage.

[@Thoaiphong67]

Thanks sir.and for video so useful.

[@M22Research]

One of the best how to videos I’ve seen, Kudos! Clear and fully documented. Love these Panasonic microwave ovens, but the weakness we’ve found is the microswitches failing. Have replaced them several times on a couple different ovens.

[@memylastname9972]

How to make a simple device like a microwave into an over complicated bag of shit.

[@niconewman32]

Thanks bro this really help me out, just now

[@stevem1081]

I decided to test and see if I was ready for a power outage. I cranked up my 1800w(2200 peak) inverter generator. Ran the fridge and internet for 4 hours, no problem. Then I plugged in the same model NN-SA651S that you are working on(all by itself) Microwave ran about 30 seconds and quit, tried 2 more times, same result, except now it shows the H97 code. I spent a few hours checking diodes/full wave bridge rectifier, door switches, I figured the unit was toast! Then I found this video, reset the code, plugged it into the house outlet, and all is fine again. I noticed another commenter said they too had plugged it into a generator and it caused the error code! I bought an inverter generator because it is supposed to have clean power to run things like this, guess that's not completely true?

[@francoisguyot9770]

Thanks for sharing your H98 experience. Mine read 0.2 ohms and had the metallic tip of the magnetron's gun half charred down.

[@saulclaudio3932]

Wow thank you so much you saved me 200 dollars

[@nailzius]

This is outrageous. Had a GE for 22 yrs and it went today. Gotta replace it with one of these “new” models that won’t last 1/10 of that time.

[@1hardlock]

Best how-to vid I'm seen - My problem is that the code reset (model NN-SA651S with H98 code) won't take. Instead of the END message I get a "0277" message? Tried a number of times all with the same result. I DLed the service manual and nothing about that code could be found? I'm not setup to test anything other than door switches so with a replacement mag running about $50 and finding another post mentioning the inverter board may be bad, anyone know if I should take a chance? love the oven and the $130 Sharp I replaced it with in nowhere near as good.

[@norcal715]

Short the 2 large leads from the inverter board to the magnetron to chassis ground to discharge any voltage, then remove them from the magnetron. try the reset, start it and see if it runs for a few seconds. If it does then the magnetron is the issue.

[@dasolpan3194]

THanks for sharing your experience and knowledge

[@doitallpro]

I've had mine less then a year bought it brand new from panasonic and here I am h97

[@laverdadesnoticia2423]

Hi, how can I get the instructions?thank you

[@findwaycanada]

Useful video, Good Job! Thank you!

[@mohgujai]

H97 code on ours, can't proceed to the last press of start button, displays "0044" after 3 pushes of the reset button

[@mohgujai]

Found out have to hold start button again, it cleared the code and works but decided to warranty return it anyway

[@jaheim23green99]

Big help

[@jamesdumont8500]

This would of been the perfect video that I’ve watch so clearly stats how to do everything but does show where to place the amp clamp why not show this,just so disappointing to me now I gotta go watch shitty videos to find out where to hook the amp clamp and wat happens if you don’t have an amp clamp cause mine was stolen you must be able to check the proper amps with a regular volt meter I got a Klein mm300 that didn’t get jacked it should be able to test the amp draw I would think I now know I have a cracked magnet so I gotta order but like an idiot I thought I’d check draw right off the 120 comeing in that should read amp draw but I was set on 10amps cause u were drawing 3 or4 but I put my positive on the neutral white and my neg on the black hot which in my experience is fine it will just read positive or nothing if your back wards it show a negative sign,but I got pretty big sparks like it shorted out kinda sparks but didn’t blow that fuse right there in the micro so I will see if it blew it in my volt meter and go from there had you showed where to do that test it would of saved me and proably thousands of others this grief,other tha this it was a great video I don’t understand why u wouldn’t show that if it’s all about likes I don’t see how this could be if I you and I don’t really understand how all that shit works either but no one’s fault but my own and with out your ideo I probably would of done more damage cause cause if you don’t fixit itwasfucked when you started I’m that kinda guy 98 % of the time unsuccessful but not real good with the volt meter either so ofte run into trouble but thanx for nothing really but I will like cause it was good except for that

[@norcal715]

On one of the incoming power wires from the outlet. I try to use the hot (black) lead whenever possible.

[@Wootstapler]

When attempting to clear the code with the stop/reset -> open door -> start 3 times procedure instead of getting End I get 0052...not sure what to do. I have a replacement Magnetron

[@andreamoore6477]

excellent video, but im sorry i have too much shit to fix around the house as it is....i will gladly donate mine to someone who wants to fix it. but i swear mine isnt much over a year old and is giving this message. cuz my mom had to get an expensive fancy one. just give me a basic microwave.

[@Thoaiphong67]

@phongntp vlogs thanks sir for me one video helpful too.This video same a lot of my video about error h97,h98 or h33,h54,h56,,for microwave hitachi.

[@RODALCO2007]

Great video. good repair.

[@sw6188]

Good microwave oven let down by cheap china magnetron. I used to do MW oven servicing full time in the 90s and there were no china made magnetrons back then. I would get machines coming in with dead mags and I would swap them out with good used ones, never had an issue.

[@tn5898]

My is h97 , after reset ,the mic ran for 30 seconds then stopped, is it the magnetron ?

[@plee1108]

Thanks for the reset instruction, didn't even know this is needed before I can do any troubleshooting. For my panasonic, after press 3x on "reset", and then press on "start", I need to hold the "start" button for 1~2sec for the END to appear.

[@figueiredofiga6363]

Thanks for the tip, I'm Brazilian and I watched your translated video and you were able to demonstrate in a didactic and masterful way how to fix the microwave. Congratulations and success always.

[@marcse7en]

I live in the United 🇬🇧 Kingdom, and my (non-inverter) Hinari branded microwave is 19 years old, and works as good as the day it was bought in 2005 for £50 / $64. I think my magnetron is made by Panasonic.

[@juanantillonm]

Hi! Do you know the model number of the inverter that is used for the microwave oven Panasonic NN ST651W? The repairing shop return my oven without the inverter installed. The 2technian" include in the package two inverters and a notesaying that all the inverters are similar, but he takes out the inverter of my oven and he is later confused what are the inverter that came installed originally. I must know the mentioned info to recover my original inverter.

[@rbell62]

When performing the reset,I pressed the stop reset pad three times.I get a code 0041.Can anyone tell me what this means.Please help I (UPDATE) found out that after the 0041 code. Press power level then (start or stop/reset) fixed my problem

[@stephaniephibbs3701]

What causes the h97 code? I have to watch the first 2 min of this video at least once a month to get rid of the h97 code, I'm surprised haven't been able to remember the order of what to press yet! So everytime I put a paper towel in to cover something greasy or sometimes microwaveable popcorn it will shut off at least 2-3 times before it throws me out to the h97 code. But I'm wondering why? I've even looked in the user manual to see if I shouldn't use paper towels and it says it's fine? In the video you go over the h98 code and how it stops heating, but mine still heats even when it turns in for 20 sec at a time before it throws the h97 code. So what is the h97 code mean and should I be replacing or fixing something so that I dont end up with a h98 code and have a bigger problem on my hands? I also want to say thank you!!! Without videos like yours I would end up buying a whole lot of new appliances or spending money to service things that really anyone with some basic knowledge can fix with instructions from amazing people like you that take time to show us what we need to know! Thanks!!

[@norcal715]

In my experience it's always been a weak magnetron that has been tripping the H97 and possibly H98 codes in my microwaves Make sure the air vent on the back is clean as well as the tips of the fan blades, that can cause reduced airflow and damage the magnetron

[@crystallalt9171]

Mine displayed the code H97. Once I did the reset, it worked again so I didn’t replace anything. Now a week later, it’s spinning but not heating up?

[@norcal715]

Most likely a weak magnetron. Replace it and do the reset again.

[@ibrahimhussain2387]

Does the factory reset method work on other Panasonic models?

[@eliseoesquivellll7894]

i love "how to" videos, and might be the best ever. NorCal715 has a great touch to show you exactly what he's talking about. Great lighting and focus. Great Job!!!!!!!

[@tvsteve2]

I have 25 years of tv and MW repair I would consider that damage to the paint inside the cavity before deciding to repair as the MW energy thinks the bare or rusty spots are food and strains the magnetron.

[@norcal715]

Many high end microwaves use a stainless cavity that is not painted. The paint is transparent to the microwave energy and as long as there is no moisture there will be no heating. If the rust particles grow to become close to 1/4 wavelength of the 2.4ghz microwave then they might react. Just to be sure I used the IR camera to see if the rust (rust has a high emissivity of thermal energy because of all the little pockets) areas were heated and there was negligible differences.

[@jacktaylor1030]

I have rust/burn spots on the paint in the cavity that I suspect as my problem. I get the H97 code, and can clear it. The oven will then run for 20-30 seconds before shutting down again. It may do this a couple of more times before the H97 code reappears. I don't have an IR Camera so I cannot verify if it's a paint problem though. The oven does generate some heat during this process, not enough to pop my popcorn completely.

[@plasmar1]

kinda funny sad, never had one of these go bad on a microwave; either it all works or doesn't...... today my dad asked me to look at the microwave and it had that H98; sad/funny part is a few months back a neighbor threw out one of these and I took it apart and took the magnatron apart kept the magnets(not even sure where they are at this point) and threw out the rest lol

[@FarnhamJ07]

Thank you for the video! After the 5V pass transistor shorted and dumped 18V into the main control IC on mine, I found a replacement board on eBay from someone saying their magnetron fried but the board was fine. Didn't think they'd save that the tube perviously failed in an EEPROM! That reset procedure made it happy again, thanks :)

[@Elwinator3]

Did you try ohming the Magnetron? Not everybody has the tools.

[@mauriciotmr]

Thank you so much! Saved my day! Cheers!

[@saulclaudio8213]

Thanks you so much my dad did exactly what you said and it fixed our microwave

[@raspyni]

OUTSTANDING! Thank you. Instant fix.

[@CYForde]

Perfect, thank you!!!!!

[@jim5287]

In your response to Chayo Darling's question about the magnets cracking, you said you believe it's from the heat of the high power magnetron. So is there some way to program the oven to always operate at P9 (power 9) without having to press the Power Level button twice each time you want to cook something ?

[@norcal715]

Not that I am aware of. Just make sure the fan blades are clean and the grates on the back, in the cavity, and on the side are clear of dust and gunk.

[@chayodarling6840]

Can anything be done proactively to prevent the magnets from cracking? like a heater hose clamp or wire clamp?

[@norcal715]

I believe they crack from the heat of the high power magnetron and marginal cooling.

[@tylersamaha2003]

where did u get the trouble shooting guide from?

[@HenrykandBasiaJarzabek]

Super !!!! Thank You Very Much!!!!!!

[@strykerist]

Huge help!! Thanks!!

[@ocapital6357]

I have one of that japonese model, and it shows H97 error, thanks alot!

[@antuanla1519]

What if the magnetron is NOT cracked? When I took mine out, it was it good shape. What else could cause the H98 error then?

[@norcal715]

still might be a bad magnetron, measure the current draw at the ac input you should see between 12 and 18 amps at 120 volts, if you only see 2-3 amps its probably the mangetron. Also if you can get a high voltage probe, measure the high voltage (5000-6000 volts) at the magnetron input.

[@maggielaw6201]

It doesn’t work for my microwave with H98 .

[@AlainDion-iv7qe]

Wow! Great repair video, thanks to you!

[@cataloupe3914]

This is perfect for COVID-19 because you cant have people in your house.

[@FixDaily]

Don't mess up with magnetrons, they have beryllium, that ceramic on that pin top covered with a metal cap, if you inhale the dust of it you mostly get into a process of painful die :) always leave it intact, savaging parts from magnetrons it's a stupid idea. Be aware

[@ggsumner1947]

@ FixDaily - Electronics, I agree, magnetrons should be handled with reasonable care, but I worked in commercial marine electronics for years, and handled hundreds of magnetrons. My FCC licensed technicians worked on tugboats, and other commercial vessels on a daily basis, and what was emphasized by Raytheon, Sperry Marine, and Furuno USA was to not stand in front of the antenna array, or you would be cooked! I'm surprised the leftist in California haven't banned microwave ovens. Lastly, if in doubt, wear disposable gloves. BTW, at 74, my doctor considers me healthy. Steve, I've had this same oven myself for about twelve years, and it's given no problems. I bought it at Target for $100.00.

[@Pirelli5961]

Meiner läuft nach dem Reset auch wieder. Sonst war nix an dem Gerät. Der Magnetron sah wie neu aus... 😊😊

[@oldollie]

I can replace it with a brand new one for $160, and I'm only out of having one for a couple of hours. That sounds pretty good compared to the time, hassle, and cost of fixing it.

[@norcal715]

The world should get out of the throwaway mentality companies are pushing on everyone.

[@nonelost1]

@@norcal715 I hear that! For over six years in my huge apartment complex, I have trash-picked so many items, that if I had kept them all, I'd EASILY be worthy of an episode of "The Hoarders." Among them are a multitude of vacuum cleaners and pedestal fans, most of which are salvageable. Also some microwaves (including the same Panasonic model you have in this video with H97). But so far, I am too gun-shy to fix those. But occasionally I have found a working one. What I don't keep or give away to friends and relatives, I give to the Goodwill. My local Goodwill also accepts scrap metal and scrap electronics. This means I pull out even busted electronics out of the dumpsters! Our condo manager even paid me once to haul away 7 junk TV's. Once, I even found an Intertek queen size power inflatable mattress that worked (though it did leak somewhat), and a handy carrying basket for it. I gave that away over Next-Door.com.

[@DiegoHerrera579]

LIFE SAVER!!!

[@dreamlessfull]

hi there... got a Panasonic with shorted power transistors on the power board. After replacing, I tested the unit but not heating is happening. Id like to check the HV entering the magnetron, I got the high voltage probe like the one in your video and Fluke multimeter but I'm not sure how to hook the probe to the meter. Could you please give me directions? Thank you very much

[@themagicknightress7132]

Mine doesn’t beep when I hold in the start button

[@TheDefpom]

Nice repair.

[@kinbendix]

Thanks a lot!!! You really saved my day. Thanks to your video, I go out of the locke out. Im really, really appreciated. ( This was my job's microwave LOL)

[@mirai3263]

I tried what you said to do i get the code: 0697, after I push the stop/reset button 3 times. You wouldn't happen to know what that means do you?

[@greanfinisher4014]

You're a life saver! During a power failure yesterday, I used a small Honda generator to power my Panasonic inverter microwave oven. Unfortunately, the generator didn't have enough capacity to power the microwave oven. Well, after power was eventually restored to the house, I kept getting an H97 error with the Panasonic inverter microwave oven. By following your guide, I was quickly able to get the microwave oven back and running again. Thank you very much!

[@maggielaw6201]

Did you fixed it ? It doesn’t work for me .

[@greanfinisher4014]

@@maggielaw6201 Yes, I fixed the Panasonic inverter microwave oven. Try following the guide again, and see what happens. I hope for the best!

[@darcyd311]

Fantastic video! I just pulled out the magnetron in my unit with same error code, and the magnets look in tact. Is it still likely to be that unit? Thanks!

[@wingmaster012]

Norcal for President. Great repair as always. IT doesnt Matter if its cost effective. Its about saving landfill and Electro scrap.

[@germainmccutcheon6140]

j'ai un micro onde panasonic NN-ST632W et j'ai un affichage de H97, comment faire pour enlever cette affichage.

[@MarkHyman-sq3gn]

enjoed your video. cant find donation button which i like to use for your wonderful service.

[@norcal715]

Looks like you found the Super Thanks button. Thank you.

[@DonBenny331]

Thanks for your video

[@ruposh289]

Hi friend my name is rehan This method is not working on my oven it is convection microwave oven please i need your help

[@clusternova6278]

Nice video, Most appreciated! clear and very informative. Thanks

[@ibrahimlynx612]

Your video is good, I followed your instructions changed door top switch but still no luck

[@robrobinson5296]

Thanks for this it was very helpful

[@trishasingh2456]

Hey I'm getting the same problem but the magnetron magnets did not crack or anything

[@balero50]

Thank you ... Greetings from México city.

[@aronwel3776]

Hallo my magnatron is not brocken but have still the Problem

[@aiymankhan7222]

My microwave is pulling 17amps after resetting the h97 h98 code why is that

[@hdaji]

Thanks! For taking time to educate. I will certainly attempt to fix mine with a similar replacement part.

[@brancarr1]

Your videos are awesome! Always look forward to a new one.

[@dianamatthews6565]

Can u come to my home I bought this inverter microwave from Amazon and it came broke it's just sitting on my counter top non working I need help

[@norcal715]

Sure, Are you in the Northern California area?

[@dianamatthews6565]

No I'm sorry I wish I live in CT

[@dianamatthews6565]

@@norcal715 no I live in ct

[@ochuutv7195]

I have a Panasonic inverter 1200W high power that turns off after 45 seconds.. done all the possible DIY ... model number NN-SC668S MANUFACTURED 2020.. it doesn't heat up and stops a 45 seconds..what could be its problem?

[@norcal715]

This is from another service manual, I do not have one for your model, but they all opearte pretty much the same. 1. Oven stops in 3 seconds after pressing [Start] pad. No input AC is supplied to H.V.Inverter (U) CN702 terminals 1. Latch Switch 2. Power relay RY1 3. Loose lead wire connector CN701, CN702 4. H.V. Inverter (U) Oven stops in 23 seconds after pressing [Start] pad. H.V.Inverter (U) operates by the control signals from DPC but magnetron is not oscillating 1. Magnetron 2. Loose lead wire connector CN703 3. H.V. Inverter (U)

[@thomascampbell416]

my Panasonic genesis microwave shows ff on the screen

[@thomascampbell416]

what is the problem

[@CORAZONSAGITARIO]

Very useful video appreciated. Thanks from Panama City

[@jp040759]

Where do you get the new limit switch bracket? I need a new one also. Thank you. I subscribed. Great video.

[@norcal715]

Encompass parts has them in stock

[@jp040759]

@@norcal715 Thank you. Have a great weekend.

[@mattfrazer3278]

hi we have Similar issue how do we reset the Micro taking it apart

[@SooperToober]

wow - ur amazing...i just got the mw heart attack warning...but most of what you said went above my head! Google says it'll cost 200-400$ to fix it....and you did it for $25! But I don't know electricals...bummer!

[@tunlai]

Question: On the Inverter board. There are 2 Push-in inlet, one with Yellow, Brown and Orange wires this I don't have problem. The next in-let has White, and two Brown, I would like to know can this in-let be used on either way? Thank you bro.

[@norcal715]

not quite sure what you are asking?

[@ralph3706]

Does it release a chemical smell? Like smoke.

[@whizzo55]

You are the best!

[@eugeneshcherba1613]

Where did you get that instruction ? Thank you

[@norcal715]

Its from the service manual. Look at elektrotanya.com for the manual

[@trampster7306]

@@norcal715 I'm in the UK. Panasonic Inverter Microwave NN-CD87K, error code H-97. Tried to find a manual on elektrotanka, jumped through a lot of hoops disabling my ad blockers and other things before I could access a download. What they claimed was a service manual was a user's manual, so no further ahead. Any help would be appreciated in getting some service info or that instruction sheet you showed. TIA. 👍👍

[@smashpie]

Thank you Fixed my issue!¡!

[@Janksta]

nope it doesn t work i tried 10 times

[@norcal715]

Sorry

[@Janksta]

@@norcal715 Its not your fault, we got a new microwave but thanks for helping

[@Shahidhussain30]

Excellent video. My Panasonic inverter Microwave blows fuse while sitting idle. Sometimes after one hour and sometimes after one or few days while door stays closed. I checked all parts are ok and the microwave works good while fuse is not blown. Please give your comments. Thanks,

[@norcal715]

First replace the monitor switch and carefully inspect the other 2 switches to make sure they are fully actuated when the door is closed. Let me know how it goes.

[@Tkaya460]

Would be helpful to have a link to those troubleshooting instructions. I'm trying to troubleshoot mine but can't read that page on the video. Magnetron appears to be fine. What are the other steps and how do I find a replacement HV board?

[@norcal715]

Go to elektrotanya.com in the upper right click "SM search" type in your model number and you can download the entire service manual.

[@Tkaya460]

@@norcal715 Thanks! According to the manual diagnostics the HV board is fine. So it must be the magnetron. Unfortunately doesn't look like they are available anymore.

[@tunlai]

I have a question. How do I connect back the two Red power from Inverter board to the Manegtron. (Which is Left and which is Right? Hope to hear from you soon. Dave

[@norcal715]

It does not matter which way you connect them. High voltage is supplied on both leads and the reason there are two leads is for the tube filament heater.

[@Swenser]

Hi. I've got this model. Upon pressing start it makes a buzzing sound every second and eventually shuts off. No heating. "Cool" displayed and no button response. Unplugging and trying again gives buzzing sounds again. Would this be magnatron? Update. I've ordered diodes as they were reading a tiny bit of leakage. I'll be back. ***.EDIT. diodes no difference. Put used magnatron in.same prob. My ncv test meter shows big voltage on maggy wires. Possible used item I bought is faulty but no shorts on it and terminals read 4ohm. I get h98 , COOL and 0.00 errors appear at different attempts after 25s. No heating at all. Life goes on.

[@norcal715]

possibly an inverter failure. hard to tell without looking at it though.

[@Swenser]

@@norcal715 I've disconnected fan and maggy and sound buzzing is different but continues. Guess I'll play with inverter circuitry while taking every precaution not to kill myself by electrocution. Cheers.

[@paultammai4399]

Thank you ,you save 100$ for me ........I fix it..........