Nordyne gas heat, flame shuts down
Posted: Wed Feb 24, 2010 9:32 am
I have Nordyne model G5RA096C-20, serial # G5R9506-00137. My problem is that in heat mode, flame is (occaisionally) shutting down after a few seconds of burn. Sometimes remains lit on retry, sometimes not. I've checked/cleaned entire vent, removed and cleaned venturi(s), removed and vacuumed at draft inducer and entry of heat exchanger. None of flame sensors or limit sw needed to be reset. I have noticed that with cabinet door open and lockout switch defeated, always seems to work fine. Is it likely that inducer motor is 'starving' for fresh air? Ctrl panel giving 4 blinks, ignition failure, but it does actually light with a god blue flame, then shuts down as the main blower turns on. I also read suggestion to clean flame sensor with steel wool.
Any help you can give greatly appreciated.
JH
Any help you can give greatly appreciated.
JH