**Looking for some insight/suggestions to address a problem concerning my
propane gas heat and glo fireplace that has a pilot light assembly with both the
thermocouple and thermopile. On the recommendation from my technician I
replaced my whole pilot light assembly due to a pilot light flame and thermopile
issue. My problem lies with the flame decreasing when I switch from the pilot
mode to the on position. In pilot mode the pilot lights up with no problem and a
very strong flame which engulfs both the thermocouple, as well as, the
thermopile. As I move it over to the on position the flame starts to decrease.
I can move the knob slowly towards the on position enough for the main burner to
engage, but if I move it over enough to fully open up the main valve, the flame
no longer covers the thermocouple and/or thermopile enough to keep the
millivolts needed to properly run the main valve. the result is a clicking sound
and shut off of the whole system. Also, I notice that the knob on the control
valve for the
main burner which regulates the flame itself has no impact on the intensity of
the flame I can move it from the low position to the highest with no increase in
flame. Since it is a brand new pilot light assembly and the millivolts from
the termopile are strong, I believe the problem lies in the gas valve itself.
Wall switch checks out fine and all the connections seem to be in order. Any
insight would be welcomed. Thanks, Tom******__**
Gas supply line valve open all the way ? Pipe partially blocked ? Sounds
like low gas pressure if the pilot goes low/off when the main burner is on .
The fact that the control knob makes no difference in flame size is also a
clue . Or it could be a bad gas valve assembly - but I'd check the gas
pressure before I replaced it .
It's propane so I'd add to the above any chance't the supply tubing has
been crushed somewhere or foreign obstruction (which is kinda' covered
It's clearly a supply issue -- possibly the bottle/tank regulator is bad
or not fully open as also noted above.
Thanks for the response. I have contacted my propane supplier who will come out
next week and check the regulator on the tank, gas pressure flow and gas control
valve. What started out as a simple fix (change out the pilot light assembly)
has turned into a troubleshooting nightmare..So much for trying to address the
issue yourself. Without the proper diagnostic tools, It's difficult to determine
cause and effect. I now have the unit on very low (pilot knob opened enough to
ignite main gas valve) but very little heat output. Could never figure out why
the flame decreased so much (to the point where the thermocouple and thermopile
was unable to get enough heat and generate the electricity needed to keep the
main valve and pilot light going) Hopefully I can put this issue to rest next
week. Thanks again for the response.
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