I have a 20 year old Lennox pulse 21 furnace. It has a heat pump with propane backup heat. Last winter it quit working one day so I had a friend of mine who repairs furnaces look at it. He poked, prodded, tested stuff and it suddenly worked, no idea why. It worked fine for the last year until Saturday when it quit again, my friends wife is due 10 minutes ago if you know what I mean but he came over and looked again. Same results.
He opened the condensation plug on the bottom of the exhaust and drained what water there was but it all seemed ok. The module is acting like it should, but it will not heat with either the heat pump or the propane backup. The thermostat is calling for heat and the module clicks in and tries to ignite on propane but nothing. Outside temp is 27? F and backup heat is set to kick in at 15?. The intake and exhaust seem clear with no obstructions, I can feel air moving out the exhaust when it is trying to light and I disconnected the intake at the furnace to eliminate any possible issues there.
Does anyone have any ideas? I really can't bother him again since his wife is still very very pregnant.
He opened the condensation plug on the bottom of the exhaust and drained what water there was but it all seemed ok. The module is acting like it should, but it will not heat with either the heat pump or the propane backup. The thermostat is calling for heat and the module clicks in and tries to ignite on propane but nothing. Outside temp is 27? F and backup heat is set to kick in at 15?. The intake and exhaust seem clear with no obstructions, I can feel air moving out the exhaust when it is trying to light and I disconnected the intake at the furnace to eliminate any possible issues there.
Does anyone have any ideas? I really can't bother him again since his wife is still very very pregnant.