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02-09-2013, 10:23 PM #1
Commercial Ruud Water Heater eats thermocouples
almost like clock work , every 4 months the pilot will not light , replace TC , good to go another 4 months
Replaced gas valve 3 years ago , same problem
What in the world could it be ? I use the standard Honeywell TC 36" you find anywhere
Pilot flame looks nice .... keeps it cherry red
02-09-2013, 10:29 PM #2
What's your inlet pressure? What's up with that nasty room? Do you have adequate makeup air and no source of depressurization? What about the rest of the venting? Have you tested at the floor with a combustion analyzer to ensure its not suffocating by CO2 displacing the O2?
02-10-2013, 02:01 AM #3
Next time your at the parts house check on the Husky thermocouples. I haven't had any issues with thermocouples sense I switched brands. There about three times the cost but well worth the money.Do NOT click HERE
02-10-2013, 05:43 AM #4
The pilot flame should also only be hitting the last 1/2 inch or so of the thermocouple. If the flame is hitting much lower than that, it can make less voltage, and shorten its life.If more government is the answer, then it's a really stupid question.
02-10-2013, 07:27 AM #5
Outlet was 3.7 , didnt check inlet , dont have combustion analyzer , venting on its own flue out the roof
Nasty room is a utility room in a pizza joint beside 2 walk-ins , entrance is always open
That makes sense about the glowing cherry red being a problem. Its hitting halfway down the rod. Thats probly my issue.
Any other appliance I've seen its hitting the tip.
Im going back and make an adjustment !
If this one burns out im going to try a Husky