Originally Posted by extopgun
Coleman furnace/ac in 1988 KIt mobile home . Pilot light out several times. Replaced thermocouple but there is no nut to hold it in place at pilot burner. There is a plate on the burner assembly that the thermocouple and pilot gas feed line pass through that somewhat holds it in place. Anyway it helped for two weeks and then went out occasionally but less frequently. What are the chances that the new thermocouple was also defective??? IS THERE SUPPOSED TO BE SOMETHING TO HOLD THERMOCOUPLE IN PLACE AT PILOT BURNER ASSEMBLY? I also have blown out main burner feed line and control as much as possible with low pressure air.
UPDATE i replaced thermocouple with another new one(differt mfg.) and has been OK since then. So still not sure but maybe just got a new one that was defective.