Taco SR506 Zone Relay Went On Fire! How to Replace & How to test and ohm Taco 0015 circulators

Taco 6 zone switching relay for circulators went on fire! Burnt like Chief Mike's Thanksgiving Day Turkey!
If you need a new Taco SR506 switching relay, click here: amzn.to/3p4tInq

[@chairde]

I learned a lot from these videos. PM is most important and now I change the filter monthly. What a difference! No more dust in the house and the furnace runs very well. I also got a maintenance contract for my air and heat system.

[@tonydelgrego2906]

Nice repair It’s nice to have some humor while making the repair.

[@tomerik8785]

@@PipeDoctor i can not belive you reconnected those wires to the circulators with melted, degraded and deformed insulation, thats a fire waiting to happen, those wires are 120v, that could start arching and not blow any fuses.

[@tomerik8785]

@@PipeDoctor i did, and not trying to troll, 8:03 is the final installation? that is the wires i was talking about, they look black and deformed to me, maybe it just looks like that on the video and they are fine.

[@plumbingchannel6576]

Very good information about the wires and gas valve

[@vtecispower]

Is there any longevity issue with temperature on the gas valve being inside versus outside the unit ??

[@ciscokid2444]

Nice work as usual!

[@fuzion430journey3]

Lose neutral or line side on the power feed to relay that’s why it first into flames, It was probably arcing out for quite some time, make sure your electrical connections are always tight especially on the power feed especially on a neutrals Happens in circuit breaker panels all the time to

[@ecaparts]

Yes I agree. The source of the fire looks to be the lower right corner which is the 120v power inlet. All the loads are fuse protected (around 5A, I believe) so a shorted circulator isn't likely. Unfortunately, this may have been caused by an install error from a loose screw connection or a connection tightened too much the solder connection cracked. Also the wire stresses the terminals because Taco didnt include enough room to loop the wires correctly (especially 12 ga wire). Either way, the arcing caused carbon tracking which became more and more conductive until the fire. I never saw one that bad!!

[@fuzion430journey3]

@scoobtoober29 no ,

[@walterbordett2023]

Nice of the boiler mfgr to not quite give you room to swing the gas valve around without cracking open the sheet metal. Finding bad switching relay and gas valve together is pointing toward a power surge or abnormal power line voltage due to bad neutral connection at the service or bad pole transformer.

[@richardvignola8000]

Nice work.

[@joedugas9462]

Caleffi pump controller has a separate 120v fuse on every pump output...keeps the factory smoke in better. I had the best luck with them

[@michaellicitra7632]

Looking at the wiring condition at the beginning of the video - it is apparent that the ignition source was right where the BX entered the Taco cabinet. Perhaps the red anti-short in the cable failed due to a sharp edge on the cable itself. Was there an anti-short in the cable?

[@RA-sz5tu]

question, why not install gas valve on exterior surface of boiler?

[@deanreed446]

Great Job ..Just wondering ..did that trip breaker?

[@georgegonzalez2476]

Checking motors with an ohmmeter is kinda dubious. A one-turn short will not show up on an ohmmeter but the motor is junk. Maybe use something more definitive, like a series test lamp?

[@sparky3869]

Why did you put the circulators on the return and not the feed?

[@rickc9873]

Did the fire kill the gas valve ?

[@ciscokid2444]

The old Switcherooey!

[@ronaldlabelle7274]

What is the temp on the side of the boiler

[@zeroheat5787]

Let Taco know you mounted the switching relay on the boiler jacket. Taco does make flow controls too; in case the homeowner is getting heat where he doesn’t want it.

[@sydsyd]

Had that happen before, line voltage was messed up do to a transformer on the pole.

[@nekotherion7317]

@@PipeDoctor Seems like a SPD or at least fusing the thing, or maybe a thermal fuse, would be a good go-to in the future given how many folks have had similar issues...or just different product lol

[@mrmotofy]

@@PipeDoctor I heard a story about boiler aquastat dying, got replaced. Then that one died again few days later. Called power company, they found a bad intermittent Line on transformer or something.

[@TheGhettoLobster]

I had a taco circulator short to ground and take out my aquastat. Very odd. Blew the breaker too

[@TheGhettoLobster]

@@PipeDoctor That dude sounded like he was just reading off a script and had very little experience in the field

[@Sinister392]

Holy shit !! Never seen one that burned up ! Who’s got the marshmallows ??

[@Keegeth]

I’ve seen a 1 zone relay do that.

[@Guillotines_For_Globalists]

I'm fucking hungry for some crispy TACOS!

[@hbv2020]

Since a steam system seems less efficient and costs more than hot water, why were so many installed in your area?

[@PipeDoctor]

Because it was a premium about 100 years ago when these houses were built.

[@ciscokid2444]

Can’t wait to be your patient Doc! Just leave those Taco SR502’s in the shop especially after seeing one fry like your Thanksgiving turkey.

[@rmhanseniii]

Still fighting the headlamp?

[@rmhanseniii]

Pipe Doctor Plumbing, Heating & Air Conditioning, Inc. ...test it on Kalvin first to see if he looks like a goof

[@PalmasHeatingcooling]

👏👏👍

[@brucebratschi4300]

If you keep this shit up of making videos I might learn something. ❤️

[@andylarson3547]

Not that critical to have 18" of straight pipe before that air scoop?

[@ryanwagner4131]

Why do u east guys feel like m copper is ok to use

[@ryanwagner4131]

We don't even use it California

[@tjbee1905]

1/2" gas line...get some channels on it ALice, no need for a pipe wrench! lmao

[@bkoz319]

chooch

[@cliftonwinkler1460]

the switching relay should not be install on the side of the boiler

[@danieljanowiec1324]

Why would you say that I installed relays all the time on boiler jackets and seen hundreds installed that way. I’m not arguing with you just would like to know you’re reason.

[@cliftonwinkler1460]

I just say that because eletrical parts like to be warm in the winter and cool in the summer, if you install them on the side of the it of course very very hot and it potentiallyiver time causes things to over heat, I have seen never had one get on fire when they are kept in cool place off the boiler I have only every seen catch on fire when when they are too hot and on the side wall of the boiler I'm am just speaking on my service experiences

[@danieljanowiec1324]

Thanks for your quick reply on my question. To saint mike and the crew keep up the awesome videos I enjoy watching them with a nice beer 🍺

[@pelon542]

i totally agree with you,specially if its hidden behind all the circulators like that one,i would charge more just for the inaccessibility

[@mike617]

@@cliftonwinkler1460 I’m curious, what brand boiler are you using that the jacket gets that hot?

[@jimoakley3436]

N.F.G. Non-functioning goods 🤗

[@1UTUBEUSERNAME]

Vertical videos are damn near impossible to watch.