Where do I oil my furnace


It's a Coleman presidential 2 model 7700

Is this furnace standing pilot or electronic ignition. If standing pilot i would check furnace filter then the thermastat. To test themostat first turn power off to furnace. Take thermostat off wall and take wires labled R & W and connect them together. If you have electronic ignition I would start with cleaning the flame sensor with steel wool or wire brush.If you have and more questions i will be glad to help.

Sounds like the flame sensor. But it could be the thermostat. Is the furnace standing pilot or electronic spark or hot surface ignition. I would start by checking thermostat. Turn power off to furnace take thermostat off wall and take wires marked r & w and connect them together. Turn power back on if furnace works then change out thermostat.Most eclectronic ignition Furnaces have a flam sensor, You could take flame sensor out and clean it up with steel wool or wire brush. If you need anymore help just reply back .

have you changed t-stat? if so you need to increase the heat anticipator. if you have a fan limit switch, the setting may need adjusting. Thay will change with age

You should have 3 wires going to the gas valve - MV(mainvalve), PV(pilot valve) and MV/PV (or Common). Make sure all of these are properly wired and tight.
You also may have a dirty FLAME SENSOR on your pilot/ignitor assembly. You may need to remove the pilot tube and the pilot assembly to clean the sensor with sandpaper.
Be careful not to damage any parts while cleaning them. Be careful not to crossthread the gas line when re-installing it.

I remeber we took out a Coleman kero heater out of my grandmothers mobile home. Just had it repaired but she wanted a new unit. Would have to go and check to see how many BTU's it is and also to see if the book is there as well.


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