Today replaced thermocouple, and same problem occurs. No thermostat attached. Hear a pop after a few minutes, and all flame is out.......pilot also.
Thanks
2007-02-13 08:14:09 · 8 answers · asked by Richard C 2 in Home & Garden ➔ Maintenance & Repairs
Thank you , yes it may be the m/v valve, this is the same symptoms as before I replaced the thrmocouple.
2007-02-13 09:27:38 · update #1
Units without external thermostats usually contain a millivolt generator as opposed to a thermocouple, although the appear very similar. Since there is no external power connection to these type heaters to operate the gas valve, a "millivolt valve" is used, and the themally exited millivolt generator supplies enough power to open the valve.
Before you replaced the thermocouple/millivolt generator, were you having the same problem? If so, the millivolt valve itself could be deffective, but I can't explain why the pilot is going out, too.
2007-02-13 08:35:31 · answer #1 · answered by Hank 3 · 0⤊ 0⤋
More than likely a bad thermocouple. It is a small sensor that measures the heat given off by the pilot light. It protects you because if the pilot were to blow out, it shuts off the gas so your furnace area does not fill up with natural gas, causing risk for explosion. But when the sensor goes bad, it fails to register that the pilot is lit, and shuts off the gas valve. Thermocouple is a fairly standard service item. Call plumbers/Heating techs and ask you to quote a price for a thermocouple replacement. Give the make and model of the heater if you can. It will be a lot cheaper for you to do it that way, then just to call a tech and have him come out on an open ticket. Of course, if the problem is something else, the thermocouple quote won't apply.
2016-05-24 06:24:11 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Probably what has happened is that the pilot light is way too low, since you said you replaced the thermocouple., id assume its a pilot system or a direct spark ignition. Either way increase that pilot light . To do that look for a cap on the gas valve, take that off and youl see a screw way down in there. increase that so the more gas goes to pilot light If you have a direct spark ignition, you wont be able to obsererve the pilot light sitll adjust it higher.
2007-02-13 09:08:24 · answer #3 · answered by James M 6 · 0⤊ 0⤋
I would have someone check it out as it can cause you more problems than you wish to deal with.
Apparently the air flow is not what it should be and also maybe there is dirt in the orfice. There may be a safety issue that causes it not to keep stay lit. Maybe too much gas coming in causing it to go out along with the pilot? Heck I don't know lol. Good luck and for peace of mind call someone who knows what to do!
2007-02-13 08:30:42 · answer #4 · answered by oldone 4 · 0⤊ 0⤋
My wall gas heater was running, then, pop, went out. I replaced the millivolt generator but all that happens is, the pilot tight on stays on while bushing button on startup then release button, pilot goes out. Also replace wall thermostat. No help.???
2016-03-20 09:58:56 · answer #5 · answered by Russell 1 · 0⤊ 0⤋
Check if it has an inbuilt thermostat in it that's causing the problem!
2007-02-13 08:24:53 · answer #6 · answered by Asad 2 · 0⤊ 0⤋
check to see if it has a thermal coupler if so go to Menard's and get a new one easy repair don't forget to shut off power before replacing
2007-02-13 08:24:07 · answer #7 · answered by daddytobe 1 · 0⤊ 0⤋
Check to see if you are out of fuel. There could also be air in your line too...
2007-02-13 08:22:04 · answer #8 · answered by star 4 · 0⤊ 0⤋