taco control issue no heat or hot water 

Anyone else would just say time to replace the 4 zone relay board and get the $$, but this guy decided to keep playing around before leaving and find the true issue which might be a temporary fix but saved the owner $$$. Good man Steve. Next Level, Class A.

Thank you

Good video Steve, like the diagnosis style.

Good find. Soon time to start prepping the equipment for condenser's and evap coils!

Good job!

Nice repair on the relay Steve. Next level man. I enjoy your boiler work and repairs.

Keep up the good work Steve

Next level Momma! Ol Miss Molly window down and cruising!

Did you have the part? Do you ever not have a part?

That was an interesting problem, corroded contacts in residential HVAC are not nearly as common as in automotive applications, but it can happen.

Relays can be sneaky like that. Pitted contacts or oxidation on contacts or the pins that plug it into the socket. A few of those individual relays might be a good stock item to add to the truck.

Yea Ms Molly sure is getting used to working ... she is a lot more chilled out sitting there in the truck !!

Steve not having something in the truck........whaaaaat?!?!

I’m here at work sipping on an afternoon coffee trying to catch my second wind and I almost spit it out when you said that it need some NEXT LEVEL MAMA! Thank you for that!!!

exact same problem i had with my Taco SR504 relay board. Same 120v relay too...jiggling it turned the furnace on, wasnt seated tight. Must be an issue with these boards.

Molly says: You tell 'em Pops! We don't wait for nobody! Time is money.

Nice fix Stevie Boy ... I like it when Miss Molly's ears are blowing in the wind ... Lol ...

Wouldn't now have been the best time to do a cleaning, when the HVAC guy is already there? By the by, Steve, I cleaned all around my furnace, vacuumed the inside, and wiped it down. I'm tired of seeing crusty HVAC.

excellent video as always Steve. Have you ever considered a service backpack like the new Milwaukee ones ? I used to lug a tools box around, now Ive got 3 of these packs. 1 is my primary, 1 contains all my combustion analyzers. the 3rd one is my 12 amp Drain auger.... if Milwaukee made bread i would have Milwaukee toast for breakfast every day. :) these packs seriously do save my back from a lot of stress of hauling a tool box around. Keep being awesome :)

What camera do you use

Gave the Taco 🌮 the good ol’ gundy!

Yeah Lotta guys are gonna think he should just pull that relay out and solder another one on, but the real issue is the duty cycle on those relays...they only work for hundred thousand or so on/off switching. The silver coating on the contact will start to wear off over time and they will arc weld together; a light tap may free it up for a while but it’s doomed to repeat. Even if you replace the bad one, any of the other three could go bad at any time. “Like for like” Steve, your best bet as always is, just recommend replacing the whole board, which I’m sure you did. :) Happy trails fellow turd herder! :Edited for grammar:

Steve what that clown did he had you come over and tell him what the problem is he's going to run out and buy the new part and do it his self. I've seen it a million times. Peace brother

Miss Molly is a workin girl momma...

May I Have a Taco LOL Taco Control funny Name