Refrigeration: Freezer Evaporator Icing up

[@Luzt.]

a) You mentioned in passing "a design flaw" and b) I know that correcting manufacturers is a controversial subject. Having said that, wouldn't it be a good idea to move the defrost sensor to the most iced-up area of the evaporator and be sure each time it is 100% de-frosted? Thank you for another opportunity to learn.

[@rookierefrigeration4357]

Yes. That is exactly what needs to be done. But we aren’t allowed to change it when we want. This chain only allows us to change these things if it’s approved. It’s so dumb. But you are 100% correct. I’d love to relocate it to the top right part of the coil in between the fins. Great comment bro

[@Luzt.]

@@rookierefrigeration4357 Thank you for the answer. Have a good day.

[@throttlebottle5906]

@@rookierefrigeration4357 they likely placed it at the end to shield from physical damage when cleaning, also to prevent freeze/thaw cycles of ice pushing it out. that was less of an issue with the capillary tube sensor type shoved deep inside the fins parallel with the tubing. it's almost like engineers back then knew what they were doing, learning by trial and error in the field with real testing and not just some electronics/programmer nerds hacking a refer system by poking keyboards lol.

[@sjefoekel6058]

@@throttlebottle5906 hahaha Exactly

[@jairojaxon9504]

i dont mean to be off topic but does any of you know a tool to log back into an instagram account?? I was stupid lost the password. I would appreciate any help you can give me.

[@thawrath9306]

Well done! That "3rd guy here" thinking process saved the day.

[@hkhvac270]

That was professional troubleshooting good job 👍

[@rookierefrigeration4357]

Thank you for the kind words. 💪🏼💪🏼

[@andreware7536]

Thanks for the videos!✊🏾 me being in my "rookie" years only 3 years in, I can appreciate these videos! Thanks again!

[@rookierefrigeration4357]

Thank you for watching 💪🏼💪🏼

[@mybeachshack]

Very thorough, big-picture diagnosis. This is your service-company, yes ? Nice tools. Thankfully it's not an ice-cream box ! Good job, Sir...... Hats off !!

[@PENSNASTY]

New to your Videos. I like the way you work. Speak in terms I understand without being to proper. I also like to hear your thinking process. I’m learning a lot. Thanks.

[@rookierefrigeration4357]

Thanks for watching bro. I appreciate it

[@mannyradtke136]

Let me tell you... There is nothing rookie about you! You are as thorough as I wish I was! Well done! Your videos are great and I hope others catch on to you! Keep it up and thank you!

[@rookierefrigeration4357]

I still make mistakes. But I at least admit them and show them.

[@tonybrown5400]

Thanks for these great vids really helpful for people starting out please keep them coming Regards Tony from England 🏴󠁧󠁢󠁥󠁮󠁧󠁿🇺🇸

[@rookierefrigeration4357]

Tony Brown thanks for watching bro

[@TheOahuborn808]

That was a good catch of the swap wires. Love the way how you take your time and analyze the situation.

[@rookierefrigeration4357]

kyle albano thanks bro. I appreciate you watching

[@gas_man1565]

Really good catch. sometimes those boards are overwhelming to unexperience techs. we all been there. let your boy know great video!

[@barbarahauser9700]

it looked like the heater holding clip was off on the end of the coil. which was why not defrosting on end. which was why coil fins were bent up .

[@jamielapierre931]

Great learning video. Thanks for sharing

[@rookierefrigeration4357]

Thanks for watching 👍

[@crrefrigeration7705]

They sent in the big guns good work nice find👍🏿💪🏿

[@rookierefrigeration4357]

Lol. I wish. Thank you for watching👍🏽

[@TheOneshot78]

Great job my friend..

[@rookierefrigeration4357]

Thanks bro

[@paulwhite9848]

Super good diagnosis. I’m learning -subscribed

[@rookierefrigeration4357]

Paul white thank you Paul.

[@yahyabokula1130]

I appreciate your videos champ, keep em coming! Im a rookie myself with over 2 years in the game residing in London. Your doing alot with these videos for us rookies🙌🏾

[@rookierefrigeration4357]

Yahya Bokula thanks alot bro.

[@mustafaali3114]

I felt that part when you said the customer doesn't like spending money Haha 😂

[@rookierefrigeration4357]

Lmao. It’s reality

[@jyphc1679]

That was damn good troubleshooting👍👍👍👏👏👏

[@rookierefrigeration4357]

Thank you. And thanks for watching

[@andrewedis9907]

Nice catch

[@hg2.]

This one is going into the HVAC Hall of Fame playlist, i.e. The ones that would give you nightmares if you had to fix. Or The ones that start out with "Three guys came out here before and couldn't get it fixed..."

[@uski]

I am not in the trade, so I might be missing something - but my suggestion would be to label the connectors with a small point sharpie ("SUC" for suction temp, "DEF" for defrost, and so on). Of course it should have been the person unplugging the connectors who should have been doing it, but better late than never.

[@20315711978]

Well done Rook. Enjoying ur work. Thanks hope u get some good call & don't work to late.

[@rookierefrigeration4357]

Thank you for watching bro. I appreciate you.

[@hvac01453]

I would think then that the install was wrong. The discharge air is hitting a hard wall, there is no throw.

[@industrialmaintenancesolutions]

Awesome video. I am working on a small norlake walk in freezer. I am not sure if the evap fans should suction air through the coil or if they should blow towards the coil. The evaporator coil is set up almost the same as in this video. Please help.

[@Ted_E_Bear]

Make sure you wear your PPE and be safe ! Great troubleshooting ...

[@rookierefrigeration4357]

Yes sir. Thanks

[@ronald21brand]

Thanks again nice one. Stay save greats from Holland.

[@rookierefrigeration4357]

Ronald Brand thank you. Greetings from Texas

[@jimmyp5487]

Just FYI If there is a smart controller for that beacon system you have to change the parameters on the smart controller for it to save on the beacon control board in that evaporator

[@chevboy167x8]

Great catch!

[@rookierefrigeration4357]

Thanks bud

[@konstantinostsoukalas362]

Good finding Bro. Always good to be patient and check everything.

[@rookierefrigeration4357]

Konstantinos Tsoukalas yes sir. 👍🏽

[@kcomfortsystemshvac7060]

Good,,,,,as usual,,,,,!, good explanation 👍👍👍👍

[@rookierefrigeration4357]

Thanks

[@mychoclabwinston]

It is stupid that a plug and play board would use identical J clips, like you said were all human, manufactures should make the board so that clips can’t be plugged in wrong

[@hvac01453]

ya really....they could have at least colored them different.....OR..... its the same sensor, just installed in a different location. In this way, you could stock just one sensor in the truck.

[@nakiapringley5391]

Awesome find brother 💯💯💯💯💯

[@mychoclabwinston]

Remember when there was a A419, metering device, solenoid, evap fans, elements for defrost, on the roof, a compressor , time clock, fans, not all these boards that sit in -20C environments.

[@JuanTodoli]

Si señor, good eye Macías 🧐 And another good one in pulling those cables sensors... just in case 👍

[@1989Chrisc]

Also your valve will be open a lot more due to the defrost sensor being warmer than the suction line during operation. This could have ended bad for the compressor, id say it was a ball of ice

[@bonganiedwardmthethwa6455]

Thank you for the video and your humbleness.

[@AlexGarcia-vv4ux]

Trimmed the beard got you looking like a true rookie out here 😂 but as usual great work 💪🏽 stay safe .

[@rookierefrigeration4357]

Lol. Thanks bro. 👶

[@dunckeroo1987]

Looks like the unit is going to be fine now. Yet one wonders if the original board was connected wrong and that is why it was replaced. It looks like one end of of the DFH retainer has fallen down or was pushed down by ice build-up.

[@hvac01453]

ya, I noted that too

[@MrAnderson3]

Good find bro!! Very informative, thinking about getting back into supermarket refrig, air conditioning can be pretty boring sometimes and with the current circumstances, no ones spending money on air conditioning being a luxury and you need service techs for supermarket refrig because shops never close😂thanks for the content 👍

[@James-vf5gs]

I miss supermarket refrigeration too, what I don't miss is multiple midnight calls and 80-90hr weeks. I have had a few companies chase me lately and it's very tempting. What's keeping my inner nerd happy is Rookie refrigeration and Norcal Dave! I will stick to air cond for now...

[@rookierefrigeration4357]

Lol. Thanks bro.

[@markpayne6803]

Ba++y you're right about AC being a luxury but the way things are going in the US restaurants and bars are being shut down or restricted operating hours and in my area most Supermarkets are using union techs

[@hvac01453]

you questioned the placement of the probes "return/Supply".... I would check to see if the OEM was truly having the airflow like that. Someone may have replaced the blades or something... All the AHU I've seen PULL air through the coil. This also makes it much easier to clean the coil because the dirt is on the outer face of the coil. I have seen low velocity coils push air but then again those are usually on large up-flow types.

[@rookierefrigeration4357]

Nope. This is design. All stores have this. 😥

[@harrydickson4575]

Nice job 👍

[@rookierefrigeration4357]

Thanks bro

[@throttlebottle5906]

A smart guy would use the available documentation, search for more if needed and use all available resources....... so that makes you a smarter guy :) as complex as everything has become, with many different versions, designs and manufactures it's vital to have documentation and lots of it.

[@rookierefrigeration4357]

Agreed. Thanks

[@jamesmcguire5018]

Fair play for calling a recall a recall instead of bull shiting lolol

[@gr82becool]

Way to go SUPERTECH!!!! 👍👍👍

[@rookierefrigeration4357]

Bro I’m just trying to be like you. Super Refer Tech 🤣🤣

[@alfredode6142]

Saludos... Excelente análisis!!

[@rookierefrigeration4357]

Gracias

[@michaelcave5597]

I Would give you a double thumbs up for that one if I could, As with everything if you know how it works you can diagnose the fault and repair it, Boom 👊

[@rookierefrigeration4357]

Yes sir. Thank you.

[@jimmyp5487]

Gotta change the settings for the beacon equipment at the main controller in the EMS panel. If it’s on EMS. Should be. If not can change parameters on the boards at each evap unit.

[@rookierefrigeration4357]

Yeah this one didn’t have the ALC board.

[@nixcoolfix]

Good stuff man 👍

[@rookierefrigeration4357]

Noel Mont thanks bud

[@mcotrucking4]

What does a service call like that run for a customer?

[@anthillmobstars]

Great find. Well done.

[@rookierefrigeration4357]

Thank you

[@markpayne6803]

You said early in the video that the third tech out should be checking for everything well if you work for us the first tech out should be checking everything that's what they get paid for

[@shine-cg9uf]

great troubleshooting. thanks for sharing

[@rookierefrigeration4357]

shine thanks bro

[@RP-mt6bp]

If the evaporator is maintained above 0 degrees Celsius, for the water not to freeze on coils, how is it possible that any well working freezer cools down to (minus) -21 degrees Celsius? Logically thinking, if the evaporator air-flow outlet temperature is +0.2 degrees Celsius, the temperature could not go under it (to -1, -2 … -21°C), would it? Can somebody, please answer this question that really knows the correct answer.

[@RJMaker]

Nice Work, Good Find.

[@rookierefrigeration4357]

Thanks

[@ryancurtis2038]

At 8min 51 seconds when looking through the evap fans it appears that theres a burnt gray wire on the right. Is it actually burnt or does it just look that way?

[@gregbowman3598]

Go video brother

[@treverkirk8110]

Good find!

[@Eric-ot6sn]

Good job

[@throttlebottle5906]

I'd guess it's flooding the evap coil too, since the suction temp reading is high until it eventually freezes into block and of course the defrost terminates way early. hard to say what else the controller would do wrong when in defrost or cooling, there could be many complex issues as it cycles icing further with time. likely they've never dreamed nor imagined that could happened and have nothing in programming and design to catch the issue. I guess they could have used all different plug types, but that would be a nightmare down the road. I guess they expected the tech to label them while removing or direct board to board swap that rat-nest, but was it ever right from the factory to start with?

[@rookierefrigeration4357]

Exactly correct.

[@markpayne6803]

Hey Rookie love your videos I love TROUBLESHOOTING in my opinion it separates the techs from the part replacers I think I think I'll call you the Wizard

[@rookierefrigeration4357]

Lol. I’m just a rookie bro.

[@mynhauzenneyman2584]

Лайкос 🤔👍👍 сделайте с русскими субтитров !

[@James-vf5gs]

For the record mate, I think you're pretty smart. G-day from the land down under. Keep the vids coming!

[@rookierefrigeration4357]

Morgan James thanks bro. I’ve been to Aus twice. Darwin and Townsville. Enjoyed both times

[@bwcnation]

Good catch

[@hangngoaigiare]

You have to melt all those existing ice to able to test a full next good defrost? With that much ice all thing off. Another weird design air blow to the back.

[@merardoreyes3020]

You are super smart man

[@BigHuff-sq9hb]

Nice video, I'm gonna be working on alot of beacon 2 coolers.

[@rookierefrigeration4357]

They are easy. Just read the manual.

[@stanleyroberts2461]

Good find,!!

[@jimmyp5487]

And your EEV is gonna flood the evap coil cause the suction line sensor is on the defrost sensor. Good find 🤘way to be thorough

[@rookierefrigeration4357]

Yes sir that was definitely a side effect of the swap. Good catch

[@mikepict9011]

It seems like their trying to mess with time instead of adding hot gas two stage . Or thats the plan and why it only has one heater

[@whitesheatingairappliancer7101]

Great video. Could you increase the defrost termination temperature too 70 or 75 degrees Fahrenheit to defrost the remaining coil?

[@rookierefrigeration4357]

I think it was raised from 55 to 65 already. If any changes were to be made, I’d relocate that defrost sensor to inside the coil on the top part, right corner. That’s my next move if it ices up again.

[@whitesheatingairappliancer7101]

I get you.sensor would be iced up. For defrost to terminate, it would melt the ice. Hopefully manufacturer doesn't have any compromised parts effected by the prolonged heat. Take care rookie.

[@timsambolin6153]

Where did you go? I was hoping to see new videos

[@JCM2LA]

Man you are good!

[@rookierefrigeration4357]

Lol. I’m a mere mortal. Just a rookie

[@JCM2LA]

@@rookierefrigeration4357. Not a rookie

[@chicoabdallah3944]

Good job bro.

[@rookierefrigeration4357]

Thanks bro.

[@MarcHord-mk5ff]

That is good catch man. It’s always the little stuff.

[@rookierefrigeration4357]

Marc Hord yup. Glad I caught it though.

[@MarcHord-mk5ff]

Rookie Refrigeration makes the good tech, great. I always say, if you don’t want to know the truth, don’t send me!

[@sincityhvacr]

nice

[@sjefoekel6058]

That is not the way to install an evap in that box. There is airflow issues, cant imagine some one in there right mind will do this, it blowing directly on the wall and bouncing back in the fans.

[@rookierefrigeration4357]

Installers bro 😂😂

[@carloscervantes618]

That was some great troubleshooting!! Keep up that good work 💪🔥💯 Do all fans blow towards the coil or it could be both ways?

[@rookierefrigeration4357]

This one is designed to blow air across the coil like that. Just depends on the design.

[@carloscervantes618]

@@rookierefrigeration4357 ohh ok got it, Thanks 👌

[@jordanhorvath1440]

What kind of pump sprayer is that?

[@rookierefrigeration4357]

Home Depot special. Like 99$

[@jfrancis98]

Well done.

[@steveblake8766]

#205 thumbs uP

[@bradmurray9401]

Another good video. We're you in the military?

[@rookierefrigeration4357]

5 years USMC.

[@bradmurray9401]

@@rookierefrigeration4357 I thought you might. Thank you for your service, and I appreciate your videos. 👍

[@MarcHord-mk5ff]

How is it the coolers and freezers are empty when you get there? I can never seem to be so lucky.

[@rookierefrigeration4357]

Marc Hord this manager was mad. He says it’s Ben empty for weeks 😂😂😂

[@throttlebottle5906]

are the defrost element supposed to be hanging that far below the coils on the end not defrosting as well? I don't recall seeing them hanging low on others, did the retainer clip pop out during shipper or from icing up solid? those hanging would make it defrost uneven since it's mostly convection heat then, vs. radiant almost directly into the fins and lowest tubing

[@fesalmodi1909]

What is the motor on the side for?? Min 2:36

[@rookierefrigeration4357]

Fesal Modi that’s the Electronic expansion valve stepper motor.

[@bmillwood6666]

Why didnt the first guy have to go back and fix his mistakes? That's how you learn.

[@jonnymac31]

Probably got put in quarantine lol

[@arambulaj23]

Agree, he could have seen his mistake

[@rookierefrigeration4357]

After a tech or 2 have been on a call, they give it to “more experienced” guys. I’m not sure I fall into that category but I got it done😂😂😂

[@josemagallanes7779]

Nice of you not to talk down on the other guy like most youtubers i see here do.

[@rookierefrigeration4357]

Just a guy that made a mistake. That’s all

[@josemagallanes7779]

Rookie Refrigeration just have the same mercy for me too 😆

[@Ag6972]

Which thermal image are u using I’m looking to buy one Any recommendations

[@rookierefrigeration4357]

Ag6972 this is the Flir one pro for iPhone. Just the attachment

[@quanrawls3939]

My hero

[@throttlebottle5906]

the rub-out look, my eyes caught that as camera looked in, then you put the text on screen, looked like the defrost sense lead also lol

[@derrickgarcia303]

You da man!

[@rookierefrigeration4357]

Derrick Garcia thanks bro

[@LMSILVIA]

Funny how techs in US add OUT to everything changeout, rubout, loadout....

[@rookierefrigeration4357]

Lmao. Agreed

[@LMSILVIA]

@@GamblerMarco Oh how witty and funny. Pedazo idiota...

[@markpayne6803]

Now where I come from we say takeout eat out dine out and rub one out lol

[@isaaccampos7276]

No rookie mistake today 😥?? Just kidding good explanation bro keep it up!!!

[@rookierefrigeration4357]

Lol. My next video has a great rookie mistake 🤣🤣🤣

[@isaaccampos7276]

Rookie Refrigeration looking forward for watching it!

[@juan251100]

I will like to be like u one of these days.

[@rookierefrigeration4357]

🤣🤣🤣

[@christopherlucas6209]

A+++

[@usarefurb2220]

Cool

[@sharky5570]

Color code all plugs, it’s called idiot proofing😂🤣😂 but they make a better idiot everyday so meh.....

[@rookierefrigeration4357]

Agreed 😝

[@dunckeroo1987]

Something like 3m H-5223 wire coding tape : It has a plastic case that hold 10 rolls of 1/4 wide tape with numbers -- also comes in colors. Maybe the manufacture could also save itself some trouble by coding each end of the cable. And Yes, some manufactures offer their connector solutions in multiple colors. One could also use a standard label printer or Sharpie markers , if one needed to sort out a mess.

[@MiguelRuiz-ih4wb]

Beast

[@totallynotbreezytheboss7218]

❤

[@mikepict9011]

Its so cold