Bigfoot B17

[rogerfb]

Help My Hydro flame everest 79/80 it works only a little, thier is heat from exhaust, if you put your hand in blowing area the ducting gets warm, but not enough to produce warm air, has recently been to shop where it was cleaned & sevviced & bench tested,
What to do any advice appreciated

[Bob T]

Originally Posted by rogerfb

Help My Hydro flame everest 79/80 it works only a little, thier is heat from exhaust, if you put your hand in blowing area the ducting gets warm, but not enough to produce warm air, has recently been to shop where it was cleaned & sevviced & bench tested,
What to do any advice appreciated

Hi Roger,
I can't help you much, but I have the same furnace and I just finished 'tuning' mine up a little, which involved some basic cleaning and lubricating the motor to get rid of a squeal. I also fixed an intermittent 'flame-out- of the pilot flame which happened when the furnace tried to cycle itself on (basically, the weak flame 'blew out' from the combustion air). I adjusted the flame a little larger, and the problem went away.

I wonder in your case, if the mild bit of heat is only from the pilot itself. You aren't getting the main combustion burner to ignite (you should be able to see this happen if you check it with lights out and darkened). There are probably several reason for this, if jets/tubes are positioned incorrectly or possibly burned out inside the burner area, gas regulator in the furnace mechanism, and other things I know little about. I'm surprised your service person wouldn't have found something amiss.

Let us know how you make out.

Bob T
17' '89 Bigfoot DLX

[rogerfb]

I think you have good idear that pilot is heat I can feal, will check out main burner jet, thanks