Colman furnace
Serial # 048166476
Model # 7680c856
80,000 BTU input
60,000 BTU out put
Standing pilot
Coleman gas funace, model #7680C856 for mobile home worked great last year but since cold season hit, can't keep home warm Thought it might be the thermostat so replaced that with new one but same thing. Thermostat clicks, burners light, blower doesn't activate for about five minutes then runs about 30-60 seconds and shuts off. Heater will kick back on about 3 min. later but same thing over and over.
I tried every thing I know I think its time for a replacement but I don't know

First make sure that your filter is clean, then you will have to look at the air conditioning coil to make sure it is not clogged up.

Post your question at the mobile home site linked below. Include model number and the problem. Post under Colman.


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