Question about Coleman Heating & Cooling
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Posted on Jan 02, 2017
Because of a few factors like dirt buildup, leaking connection or a blockage can be a factor, I will give you the online manual that guides you through entire hookup and assembly. It is possible to overlook a simple connection or a blockage. You can test for a blockage by removing the tank coupler and running compressed air through it and may unblock it the same way. Just make sure that the line is open on the other end as well. Do not use too much pressure because you can damage valves this way. I would recommend reading this manual first and in case you have already, going over all connection for leaks (use a little dish soap and water over each connection). Silly as it sounds, make sure the tank is full as well. The manual explains too about all possibilities of no flame. Good luck
Posted on Nov 22, 2007
Does the main blower fan kick on? Also, if the heater is vented outside via a flue pipe, there may be a small (about 3 or 4 inches in diameter) vent fan that kicks on to ensure the exhaust fumes are evacuated through the flue pipe. If there's a problem with that fan, the burner won't light either.
Posted on Nov 20, 2008
Could be the thermopile or bad gas valve. Lets hope for a bad thermopile (costs much less). Are you able to re-light the pilot and does it stay on without the main burner on?
Posted on Nov 27, 2009
Hi, have done this to many times not to know. I will walk you through this. It is good that the pilot is lit. Go to the stat and remove cover. Don't worry as this is a milivolt unit, no voltage or such a small amount you wont even notice as this is why it is called milivolts.Take a small screw driver to remove the next section which is the thermostat and will expose the sub-base where you will find 2 wires connected to it. You may have 2 or 3 screws to take loose to get to this last section. Anyway, if you have a piece of insulated wire laying around, even old speaker wire will work, take it and touch the wire across the 2 terminals and hold. If the furnace comes on, the thermostat is faulty, and you will need to buy a new one. No power to shut down, and simple to change. Cost about $12.00 dollars. Try and get a heat only milivolt stat as they are much less expensive and will have less problems with them. Go to home DEPOT to get one, or O.C.S.H. will also carry them. Don't let the salesman talk you into buying a programable heat and cool stat, 24 volts as they will work, but cost more and you don't need it!! Look around even if you need to go to a wholesale Refrigeration, Air Conditioning, and Heating parts house. Tell them you need one for a unit in some apts you own, and you will pay cash as you want a cash account. They will only ask what job its for, and just tell them your name. This is not illegal and I wouldnt tell you this if it was!! You will still have to pay taxes but will get a wholesale price for it. I am sure it will fire up when you touch the 2 wires and prove stat is bad. For some reason it is not the stat, follow the 2 wires from the stat down to gas valve and jump the same 2 terminals there also. If it fires up, you will have a problem in the wires from the stat to heater and will need to be replaced. I don't think this is the case. But, on the chance it will not fire after you have done all of the steps I have had you do, then you have a faulty main gas valve(MGV) and will need to replace. This is all easy to repair.I am a 100% sure it will fire up when you jump the 2 wires together, and you will need the stat. Please let me know as I will be waiting for an update! Good Luck,
PS When you install the new stat, make sure it is Level.
Posted on Dec 18, 2009
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