Emergency No Heat Weil McLain EG75 Gas Steam Boiler Robert Shaw Gas Valve

Sunday afternoon we ran 2 emergency no heat service calls. First Weil McLain EG75 gas fired steam boiler with a Robert Shaw gas valve Thermopile Generator with Coaxial Connector just like a regular thermocouple, but a wider connection. It turns out there is a Weil McLain Service Bulletin SB0107 that references this kit: tinyurl.com/WMEG75
The second service call, Burnham gas fired hydronic boiler with a defective zone valve. Replaced using Wago 221 Lever Connectors, available here: amzn.to/3HbXT53
Please support this channel and Mikey Pipes and consider the following…
Pipe Doctor long-sleeve shirts featuring “Let’s Go Bosch” on rear
Minimum donation of $11 to cover shipping expenses
Pipe Doctor long-sleeve shirts are available in Medium, Large & XL
Minimum donation of $34 is appreciated
Pipe Doctor FlexFit Embroidered Caps
Minimum donation of $37 is appreciated
(If you are international - please add a minimum of $40 for shipping/postage)
I am on Reddit, Discord & WhatsApp!
Reddit: / pipedoctorny
Discord: / discord
WhatsApp Group: chat.whatsapp.com/CHZWtZe4KMG...
Shopping on Amazon? Please use my referral link amzn.to/2PjjS4v
Sticker Requests:
Do you want a sticker to show your support of this channel? Email your request to me! [e-mail]
Name
Address
City, State, Zip
Consider making a donation of $5.00, or ANY amount, to the postage fund! I literally mail out stickers all over the globe. I've sent stickers to HVAC guys in Afghanistan, New Zealand & all over Europe.
PayPal is: [e-mail]
Venmo: @PipeDoctor
CashApp: $mikeypipesny
Want to send a love letter, note or gift? Our mailing address is:
Mikey Pipes
C/O Pipe Doctor Plumbing
80 E Hawthorne Ave
Valley Stream, NY 11580
#RobertShaw #WeilMcLain #NoHeat
#hvac #hvaclife #airconditioning #hvactechnician #hvacservice #heating #hvactech #plumbing #hvacr #ac #cooling #hvacinstall #hvacrepair #heatingandcooling #construction #airconditioner #refrigeration #hvactools #hvaclove #electrician #plumber #hvaccontractor #contractor #maintenance #electrical #furnace #hvacquality #acrepair #hvacmaintenance #hvacsystem #hvachacks #service #plumbinglife #hvacproblems #ductwork #heatpump #chiller #airconditioninginstallation #ventilation #heat #hvacinstallation #plumbers #indoorairquality #heatingandairconditioning

[@GothRocker7]

Those Wago's are neat, much better, looks cleaner, better connection. I never saw them until I started watching your channel seven months ago, I Always see or learn something new on this channel.

[@donaldclark1872]

Thank you Mikey pipes for entertaining me and everyone else and feeding us with knowledge. Very much appreciated. From hvac tech in Kansas. Yes we have boilers here 😅.

[@donaldclark1872]

@@PipeDoctor yes we do. I’m trying to learn the service side of it. Thanks to you and Dan holohan. I’m getting better at the service side. Mostly cuz of you.

[@donaldclark1872]

Thank you again for sharing your knowledge of boilers very very much appreciated. Give Gigi a hug. She’s cool doggy. Thank you again.

[@jeffsmith2022]

Robert Shaw was a very respected English actor Mike...🌲🌲🌲

[@greekmaster1001]

Excellent video BTW I installed a rinnai for my home 199 btu for hot water and been working like a charm for 7 years now

[@Extra_digits]

Love the Milwaukee heated jackets. I have the hoodie as well. Life saver for them windy days. The heated pockets really make the difference

[@El_Diablo_LI]

I have the Milwaukee heated Axis jacket and love it! It's light enough to wear in the fall and spring and with the heat I can also wear it in the dead of winter with the heat on high. If I plan on being outside a long time maybe blowing snow I'll sometimes put a bigger jacket over it, but for short stints just the Axis jacket with the heat on is all I need. I just got the heated hoodie kit with the battery and charger on-sale at Home Depot for only $99 as a Christmas gift for myself. I've heard Milwaukee isn't making these heated jackets any longer. Don't know if it's true or not but it's a shame if it is because they're great jackets!

[@rnrheating5565]

Awesome job as usual

[@jasonthewiczman5442]

Robert Shaw Gas value, Great job, I like how you Identify situation a probable course

[@Zack-fu8sn]

Feeding the people on the holidays, love it

[@eddiew.6485]

Never to early for a 🍸drink……”It’s 5-o’clock Somewhere!”😁. Nice job as always, Mikey👍

[@thunderbird233]

Saint Mike, Hope u have a Merry Christmas and a Happy New Year from a fellow plumber in Mass.

[@jaxsonhugh9334]

I hope he calls you back when that rusty pipe ruptures so we all can laugh our ass off LOL

[@jaxsonhugh9334]

@@PipeDoctor so what do you think of the Rinnai water heaters??

[@patmcnally6]

You Did Great Mike

[@brianmorris7498]

Nice work mike

[@danobrien3109]

You wouldn’t be able to make that sort or repair here without having it inspected by TSSA. You have now altered the operation of the boiler as it was approved by the authorities. Nice job Mike, your lucky to be where you are that you can do this. We are so OVER REGULATED here in Ontario.👍👍🇨🇦

[@wranglers2]

Canadian governments have a habit of over regulating everything. We have no freedom.

[@danobrien3109]

@@wranglers2 been a heating technician for 46 years. The game has changed so much in the last 25 that I’m glad I’m so close to the end rather than the beginning. It’s not just this industry, it’s all of the trades. They make it so hard for anyone other than big business to succeed.

[@throttlebottle5906]

you'd have flipped your lid here mid 1990's and back, everyone replaced gas valves and retrofitted from power piles to standing pilot thermocouples, adding 24v transformer and controls. then there was the junk electronic spark ignition setups, which failed lots and most just ripped the setup out and tossed in trash, also converting to a standing pilot setups. lot's of giant dinosaurs that were coal burners converted to natural gas/propane. I'm starting to think the C in Canada, stands for Communism.

[@richconstantino8485]

Robert Shaw was the actor that played Quint in Jaws. LOL I enjoy your videos and pick stuff. I am not in the plumbing trade but a fireman for 19 years and watching your videos I pick things up that i use on calls

[@patrickkulakowski9263]

Mike helped convert me to the WAGO 221s a few months ago...no more wire nuts for me.

[@randywebber419]

Same here

[@TheGhettoLobster]

The Rinnai and AO smith are the way to go for tankless. Very little issues with them over the years and easy to service

[@TheGhettoLobster]

@@PipeDoctor AO Smith is essentially a rebranded Rinnai. Almost identical. Same with Takagi

[@chriscurran416]

Hi mike that is a thermal interrupter which shuts the fas valve off when pilot failure it can be bypassed with a normal thermocouple

[@brian2359]

Good channel Mike, I enjoy watching the installs! The reason I subscribed…”Numb Nuts, the light is green”. Lmfao!

[@Eddy63]

#LoveBosch #LoveWagos and #LoveGigi ... Thx for posting ... LGB!!!

[@HVACGUY]

Some millivolt generators are like that. Basically two types. One with wires and one with an end similar to a thermocouple. But, it’s not a thermocouple. It’s a millivolt generator, also known as a thermopile

[@repairman2540]

How can Mike be sure the Manifold Jetting is matched with the new Gas-valve? I do home repairs and while working in the basement. I heard a Boiler Back-fire once and told the Owner to call the Gas-Company. Manufacture Engineers match the components. I thought the Serviceman had to use OEM parts? Also Mike should have changed that miss-matched gas pipe instead of putting a "LOAD" on the union connection when he hooked it backup. I think that Boiler should have been "Red-tagged" UNSAFE. I watch Mike and learned how to use a Pro-Press for Wet pipe jobs.

[@johnward5006]

Here in the UK we tend to call them generator thermocouples.Only ever seen them on US pool boilers. The generator/ thermocouple/thermopile produces the voltage to open the Gas valve via volt free external control. It is wired via high limit stat and boiler stat and incorporates pilot failure interrupter, the two white wires connected to the Gas valve end.

[@throttlebottle5906]

pretty much, all thermocouple's have the smaller diameter body, while the thermopiles/mv generator have the larger diameter body. keep that in mind and you'll rarely be fooled, at least until you hit the left hand thread thermocouples 🤯

[@mikepier1]

Have the same thing on my EGH 95 in my rental property. And that bypass is supposed to go to the back up second pressuretrol , when it reaches pressure it open the contacts and shuts down the pilot for safety.

[@FHES2005]

Some people used to ask me why do I stock a lot of parts and the odd Parts I told them it's save time you might not use them right away but when you do need them you know you got them. Especially now when supply and demand is ridiculous. HAPPY HOLIDAYS

[@cliffyb5896]

Imagine showing up to change that low water cutoff and see that. That's why you quote nothing over the phone. Happy Holidays

[@UnderUrs69]

You’re a maniac St. Mike I would have been a Schvitzing mamzer dealing with that gas valve 😂 Thanks for the FOOD Bless you MIKEY PIPES

[@jeffsmith2022]

Is that some funny Jewish comment?...

[@UnderUrs69]

@@jeffsmith2022 not at all. If you watch Mikey pipes you would understand.

[@mikeholubek4419]

LETS GO BRANDON! Oh U said Branding! Happy New Year!!!

[@randywebber419]

@mikeypipes what you had there was called a Thermopile it's pretty much the same thing as a thermocouple but I'd say more beefed up, The main difference between Thermocouple and Thermopile is their method of measurement. The thermocouple is a thermoelectric instrument, while the thermopile is an instrument that modifies thermal energy into electrical output.

[@AaronCo29]

they also have different voltages

[@dcrams16]

Seen that thermocouple first time myself last yr on a weil mcclain had me stumped

[@billtorres6027]

That thermocouple come on commercial gas fryer!

[@mattbauckman9907]

I must have missed the part where you hooked up your manometer and dialed in your manifold pressure to 3.5” wc. 😜

[@peterskier7574]

And bubble tested for leaks.

[@bruceelias2732]

Go Mikey Need a vacation after Chunaka/Christmas Wow You work 24/7 Love ya Mikey

[@bruceelias2732]

@@PipeDoctor You deserve it my Jewish brother!! Love the Yankees and Mets as well as Sox😜

[@pavelspilberg9310]

Wow to much work for thermopile problem. You know what .... LET'S GO BOSH # LOVE BOSH

[@tedsmith5058]

Hello from the great state of Michigan

[@tonyramberg9697]

The people in the home. This guy's cheese has slid off his cracker. He's talking to himself lol

[@arotechmechanicalhvacr1158]

That looks like a valve used on commercial fryers, we do some hot side work and see a lot of those type of valves

[@adamluke1289]

Thanks for feeding us!

[@doctorjohn-burgtekie]

Those wrenches are also called line wrenches, used in automotive repair of brake lines to keep from rounding off the line nuts, just one of the many uses.

[@johnjelinek7643]

Flare Wrenches.

[@anthonyspadafora1384]

Power pile gas valve on a gravity system...very popular with the Amish around here. I guess it is all about how you define (electric) lol. Although these people still have heat during a power failure. They are also used quite extensively on these non electric, thermostatically controlled vent free gas heaters.

[@dukeraul624]

Thermopile? Nice job fitting that gas line 😉.

[@greekmaster1001]

Ive had a gas valve that used a left thread thermocouple I forgot brand it was many years ago

[@FHES2005]

I've been using those push connect wire connectors for the longest time and about a year ago I was introduced to the Wagos and I love them cuz they're much more user-friendly the only downfall is you can't buy them in local stores up my way. (Lake George, NY) the only way to get them is ordering through Amazon.

[@richconstantino8485]

Martha's doesn't have them. LOL

[@frankjandreau8316]

The old device looks like a "voltage generator" not a thermocouple. The device is also called a "thermopile" and is used to generating higher voltages than a thermocouple. The sixe of the part that in in contact with the flame was pysically larger than a thermocouple. These are sometimes used in gas heaters and steam boilers and are available at most hardware store as are thermocouples. That would explain why the thermocouple did not fit in the gas valve. Your approach was good but very expensive. A replacement thermopile is around $50.00 at the big box stores and comes with two wire lugs on the end which connect to the gas valve.

[@repairman2540]

Safety First Always! God Bless you for saying something. Always use OEM parts.

[@bigdaddy4975]

Hey mike Amazon sells a magnet case for your phone and they work great the magnet is really strong. Look them up I forgot the name but you will figure it out. They have one for the iPad too.

[@user-rw6bn5cu8u]

Mike Weil Mclane dose have a power pile thermocouple it’s a special one that you can only use there thermocouple and the other thing is they are to have slow opening gas valves too

[@chadmerritt5557]

Is there any thing that you can't fix nice job Saint Mike.

[@bobschuster63]

That little blue “ thing” you took out of old gas valve is a safety connection usually down to a thermal cut off , which when open , kills the pilot / thermocouple , no fire. Obviously someone monkeyed around and just jumpered a safety, but it has to be in there for space take up

[@donaldclark1872]

Gigi. I SMASHED the like button just for you

[@AaronCo29]

It has been a while since I have seen one of those pilot gen assemblies, I have one of those in my parts for the last decade and still haven't used it. Around here, the system is usually bad with a cracked heat chamber by the time that part goes bad.

[@randyfox4611]

its a 750 millivolt thermopile generator. They also come in a waffer looking style. There isnt any ac voltage to operate the gas valve. Also there used t be a specific millivolt thermostat that was used in this application. Oh...and you guessed it.....i am definately the old guy that remembers when this was not an uncommon setup. Still running service calls and enjoying it after all these years.

[@Agent22817]

I will give you a thumbs up for Christmas and I swear one for each night of Hanukkah

[@daveg8918]

Yes mike that thermocouple is a power pile. Robert Shaw used those in almost everyone of there 7000 series Valves. Very very common commercially. They made them with the two wire power pile or a threaded power pile. But electronic in that case was a lot smarter to go with. Great videos as always.

[@daveg8918]

@@boby115 yes you’re so correct. You know back in the day one of the commercial guys got sent to that house and that’s all he had or someone did a side job on it. I would only convert to a electronic ignition it’s the smartest and best way to go. What’s funny I still carry three power piles and two 7000 series valves in my truck.

[@daveg8918]

@@boby115 all I do is commercial industrial and institutional. Really big into commercial refrigeration

[@fatcat-hc4pj]

Robert Shaw was a good actor. Good job getting it done.

[@williamwiseman5083]

ThAt old Robert Shaw gas valve was a “Wilderbeast” u haven’t had too many wilderbeasts lately

[@crashoverride328]

Thermopile - Robertshaw love them, 1951 series (coaxial connector) probably at supplyhouse, 1951-536 for 36" unit. Generates 500-600mV (for testing purposes) The other section bypassed in the valve is a secondary cutoff, kept in place as a spacer, if the connection held together by the wire nut is disconnected it isolates the thermopile from the valve killing everything including pilot gas flow.

[@crashoverride328]

@@PipeDoctor Probably, but you now know what they are - no more surprises. I'll admit,, I mostly encountered them on commercial gas fryers rather than on heating equipt, but they are the same part. If they don't produce at least 400mV in the flame path they won't hold the valve open, if they ARE producing 500mV or above and the valve won't stay open - the electromagnet in the valve failed. Easy test point is the wire nut bypassed point. Red probe to the connection under the wire nut, black to the side of the threaded part holding it into the valve. Knowledge is power - If you aint testing, you're guessing, and now you know how to test a thermopile. Hope you and your family (Including employees) have a fantastic New Year.

[@El_Diablo_LI]

Ran into this same issue at my girl friend's house over Christmas break about 20 years ago. Turns out it was exactly what these guys are all saying, it was a themopile and not a thermo couple like I was used to seeing. Couldn't get it to stay lit. Thought I was screwed. Called a plumber friend of mine who referred me to an old Lilco gas boiler service guy who did some side work on his own. He came out on Christmas Eve and had the thermopile that I needed in his old Buick station wagon. Lol I couldn't thank him enough and wanted to pay him double what he was asking to be paid. He said he was happy to help and said he knew my grandfather who also worked for Lilco years ago so he was happy to help a fellow "Lilco family member". That's what people did for one another back then! I remember his last name was Harris. I'm sure he's long retired by now. But guys like they were a rare breed. I can't imagine the amount of knowledge and experience this guy retired with. I only wish I could have followed him around for a couple of years to learn what he knew just like how we do now with Mikey Pipes! Thanks for feeding us Mikey!

[@dukeraul624]

@@crashoverride328 well said.

[@JoeSmith-ov4go]

As you say "hackery" !!

[@lmnohos]

a couple things...I thought u weren't supposed to use pipe dope with gas lines...I love that baby channel locks, I had a pair of the standard blue ones.

[@2packs4sure]

It's weird to see a pilot generator and a transformer,,, that's very funky...

[@ronstill3868]

I have seen them before, it's a 250mv thermo pile. The jumped wire should have been connected to the role out sensor. Or the like. Change the valve.

[@realestateservicessaleshea99]

I love those retrofit kits ! You need your nipple tray when piping!! Thanks again for the videos! 🥃🥃🍺🍺🍺🏌🏻‍♀️🎯 Stay safe. Retired (werk'n) keyboard super tech. Wear your safety glasses!

[@gageharper5461]

That is a thermopile, I work in the gas business see them In some tanked water heaters and some fire places and most fryers very common here in Florida, same job as the thermocouple just a little thicker.

[@alfredkulhanek1889]

Hello, love your videos, is it possible to in the end give us estimate of what job costs? We will all probably have this happen one day so we will know the cost of service call....thanks

[@paulklink3071]

Why did you just not use a new standing pilot gas valve

[@johnm2617]

Was the old one a power pile ? It is different than a Thermocouple! It actually makes power from the flame ! Usally it has a different caseing!

[@JoeSmith-ov4go]

The New Yorkian method?

[@mirskyc]

Did I hear you say you're starting to do electric after the new year?

[@davidriccitiello6421]

GIGU needs a bosch coat on those walks

[@davidriccitiello6421]

@@PipeDoctor sorry Mike, spell correct did GIGU, ITS GIGI,

[@eaglevision993]

The gas line should never be under stress....really don´t like that you had to yank it so much to connect it....

[@michaelmorello3390]

Hey Mike what part of NY you from im lower dutchess county NY.

[@michaelworley6241]

St Michael Mike, Michael from idaho. Im a new journeyman plumber. Whats the fast track to learn and trouble shoot these systems like you do? You must have dealt a lot with the Navien. Watchin your videos im kinda discouraged now after installing a couple of these, Navien based hydronics ive done. Advised from what i thought was a seasoned heating guy.

[@Keegeth]

Looks exactly like a power pile 😂

[@Keegeth]

@@PipeDoctor I wonder how many mv it puts out. Power pile normaly outs out 750mv. Thermo put out 24mv

[@yomomma9070]

Thermopile 750mV system. Boiler has no external power supply? Old floor furnaces used this to operate gas valve.

[@yomomma9070]

@@PipeDoctor I seen as I watched further. Sorry, I was commenting b4 I watched through-its a bad habit. Weird combination with the pilot Gen and 24v system. Like I said it's how the old floor furnaces operated and some other heating appliances, but usually the gas valve will have a 750mV rating. I'm not sure why there was a pilot generator if 24v was available. Hack job perhaps?

[@Zildjian242]

Mikey Sparks coming 2022

[@rayLater]

13:10 time“Who ever invented the slotted screw needs to be shot” 😂 @mikeypipes

[@steveblake8766]

349 thumbs up. Well fed.

[@stephwaylonwells3218]

👍

[@dregenius]

Just noticed that the sticker on the side of that Rinnai says "Made in Japan"... and it's not even one one of their super fancy 99.999% super-condenso-matic ones... that's good to see that they're willing to spend the extra to make their entry level units with expensive labor. I get good vibes from Rinnai otherwise too, maybe they'd be a good option to fill the entry level where Bosch might not be as cost-effective? 🤔

[@dregenius]

Don't get me wrong tho.. still #LoveBosch 😂

[@joeshmoe9940]

It’s a thermopile. Get some on the truck!

[@jameslang9170]

Time to join the 21 century

[@arotechmechanicalhvacr1158]

That’s a thermopile Mike and that gas valve doesn’t look to be what belongs on that boiler

[@JoeSmith-ov4go]

Stock the correct parts and save your butt next time.

[@zelfzuck]

Sometimes I mistake you for Steve Lavimoniere, lol

[@zelfzuck]

I watch him for a laugh, and wonder how he’s not hurt someone and sued… wanna ban me, go ahead .. I didn’t say your not a dick..

[@Menmyboy1230]

Like when he makes the gas pipe crooked because he don’t want to get a shorter nipple on the top and get a longer piece to come across to tie into the union …? Lol I agree and I love me some st mike !! But he would point it out if it was someone else so he’s gonna hear it from me Lolol

[@zelfzuck]

@@Menmyboy1230 not so much the esthetics, although that’s a sign of professionalism , the lack of safety.. in one recent video he removed the domestic cold water supply to a thermostatic mixing valve and turned the stand by setting , low setting , in an aqustat , to 170.. people could lose their skin in less than a half second.. so many things.. his changing a nozzle that’s worked for years and watch him adjust the boiler to accommodate the new replacement part without proper equipment is impossible .. is it a 1 smoke or 5? Open the air band for less smoke but increase stack temp , decreasing efficiency per gallon.. he doesn’t care.. he’s a hack and needs to be called out for it..

[@johnmeore2153]

Another house with a chirping smoke/CO detector!!! How do people live with that annoying chirping and not just change the f-ing battery!!!

[@yomomma9070]

WTF? The gas valve should've said 750mV when used with pilot generator. I'm confused now. Or all the millivolt systems I've seen say 750mV. I think some are 250mV like on gas fireplaces. You did right putting in the intermittent pilot conversion. It's more reliable and doesn't waste gas to keep pilot lit when not needed.

[@TheGamingmidnightsun]

Could you condem that first call system under health and safety concerns?

[@TheGamingmidnightsun]

@@PipeDoctor the corrosion on the pipes and the wires almost touching the gas pipes.

[@TheGamingmidnightsun]

@@PipeDoctor sorry If I confused you on that because when I saw the wires I thought that could cause either an explosion or fire.

[@jameslang9170]

No.

[@throttlebottle5906]

electrolytic capacitor/s on the LWCO have failed and it's getting a large amount of DC ripple or half-wave DC pulses. it will likely quit working soon (up in smoke) or be unreliable, it sounds like it's chattering the relay and it may even short out the transistor or ic and stick on filling. tell them to be prepared for a whole house swimming pool and fountains, also that crusty pipe 🤪🤪

[@waynekrisell8421]

This was painful to watch, but I managed.

[@ericmilburn9841]

Definitely bad generator. When there swelled up means there junk. I use to carry one of those on my truck for those rare occasions.

[@ericmilburn9841]

That plastic piece use to go to a thermal overload or limit. But most I seen were always removed and wired limit to 24v.

[@donaldclark1872]

I’m from Kansas and I know better than to put a low water cutt off that close

[@ianclifford31]

Wago

[@jaybee1930]

I didn't appreciate you taking the lord's name in vain

[@jaybee1930]

@@PipeDoctor bless you brother Merry Christmas and a Happy New Year praise the Lord

[@jaybee1930]

Also wanted to mention one of my neighbors in Drexel Hill PA with a Robertshaw family I think it was his grandfather invented the thermostat