My 17 year old Sears series 15 gas furnace has a
"slow opening" type of gas valve.
The pilot light will light the burners so there
are small flames, but the gas valve does not
open the rest of the way. The flames do not
increase in size and the heat is minimal.
The blower comes on and everything else
seems to work great, except the flames do
not increase. The full gas is not being supplied.
The manual says that the automatic gas valve is
designed for "slow opening". It opens part way,
letting just enough gas through to light the burner.
After a few seconds, it opens the rest of the way. This
results in quieter burner ignition.
I have noticed that the thermocouple and "burner pilot
assembly" plug into the automatic gas valve module.
Should I replace the gas valve?
thanks, Paul [email protected]