Question about Heating & Cooling
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Posted on Jan 02, 2017
First of all keep this in mind.
You will need to locate the wires that got hot. If you can't or if your not sure, I suggest that you call a service company. If they ok the unit and it catches on fire after wards, their insurances will cover you unit and or home if god forbid it burns. This is to be on the safe side.
Now, this is where I would look. Your element should be on it's on circuit. There should be a disconnect within reach of the air handler. Some are fused and some are not. The wires that got hot enough for you to smell them should show signs of being hot like the plastic will be melted around the wire. You said that the heater was running. Was this the first time you have used it this year? If so, are you sure it was not the dust burning off the elements? They will smell like something burning when you first turn them on each year. Although if your sure you smelled wires getting hot, please continue looking for just that. Keep in mind that the elements have 220 volts coming to them. It comes into the unit and go to a switch or relay. From there the power goes to the elements and then to a neutral. These are the wires you will need to pay the most attention to. Good luck.
Posted on Nov 23, 2009
SOURCE: fan will not turn off
With your breaker on, the system selector switch (at your tstat HEAT/COOL/OFF) in OFF and the Fan Switch (ON/AUTO) in the AUTO position, Trace the wires from the Blower Motor to the blower relay. Try tapping gently on the relay using the plastic handle of your screwdriver/nutdriver. If the blower shuts off, the blower relay is sticking and needs replaced. Fortunately, this is a problem that will allow for the system to continue to control the temperature while you are awaiting your new part to arrive.
This is the problem for 90+% of the problem you are describing. If this does not resolve your problem, let us know and we'll look into another area.
Good Luck in your endeavor! :-)
Posted on Mar 03, 2010
SOURCE: won't fire
It may also be the high temp switches under the 2" inlet/outlet header. The 150 degree high-limit switch sits horizontal and corrosion happens often there. But be careful removing as if the header is corroded and the switch is also, water will flow out , so be ready to bypass the heater. You will have to replace the header. Try to jumpe that switch out and I'll bet the heater fires up.
Posted on Aug 07, 2010
As long as the burner works it is unlikly that the thermostat is your problem. It is more likly the fan limit switch needs replaced.Unfortunatly I am having no luck finding a wiring diagram for this model so I can't tell you where it is at,but I think that's the problem. Thank you. Sorry I'm not more help
Posted on May 19, 2011
Testimonial: "Hi frodo,Thanks for the quick response i will try the advice you mentioned. I will let you know if this works.Thanks again. olmate 56"
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