Question about Heating & Cooling
SOURCE: High Pressure cutoff
YOUR OUTDOOR FAN MOTOR SHOULD NEVER SHUT OFF IN THE AC MODE. IT IS SUPPOSED TO SHUT OFF IN THE HEAT MODE WHEN ITS IN DEFROST. IF THE UNIT IS RUNNING IN COOL AND THE OUTSIDE MOTOR QUITS ,THE COMPRESSOR WILL QUIT SOON AFTER. EITHER THE RUN CAPACITOR FOR THE FAN IS BAD OR THE FAN MOTOR ITSELF IS BAD, IF CAP IS GOOD THEN THE MOTOR IS At FAULT. THE OUTDOOR PRESSURE SWITCH CAN ALSO OPEN IF THE INDOOR FAN MOTOR FAILS IN HEAT OR THE FILTER IS PLUM NASTY in heat OR THE INDOOR COIL IS PLUGGED UP in heat.. THE PRESSURE SWITCH USUALLY TRIPS AT 400 TO 425 SO ITS WORKING CORRECTLY. YOU MAY BE CONFUSING THE ISSUE SAYING THAT THE AIR IS HOT AND COLD INSIDE. IT IS COLD WHEN AC IS RUNNING HOT WHEN HEAT PUMP IS RUNNING IN HEAT BUT ESSENTIALLY not cold or hot if compressor isn't running, but a lot of folks describe the lack of cold air as hot when the compressor isnt running. but it basically is warm or house air temp.you test the capacitor with a capacitor tester or take it to motor shop and let them test it. odds are its a 5 , 7.5 or a 10. it should test within 10 % of rated value . ask for a RESCUE brand replacement motor. they are great ,reversable etc.carefully oil and sand the motor shaft and note exactly where the blade was located in relation to the grill so you get it back just the same. usually they wire up black to a leg of 220 power. white to the other leg of 220 power. brown and brown with white stripe to the capacitor.you can also pull whole fan shroud assembly on some units and take whole thing to motor shop and let them test motor cap, replace and all you do is return to unit and connect two power leads,
Posted on Oct 26, 2008
This may be as simple switching the thermostat to electric, under the cover is a gas/electric dip switch. Hope that helps.
Posted on Jan 17, 2010
SOURCE: Need Fan Motor and Capacitor
The best place is from rudd the cheep price will leave a bad taste in your mouth long after you replace it with after market parts. And the cost will be double. My experience in buying aftermarket parts almost cost me my business when the parts failed and I had to replace for free. Once you plug in a electrical part you own it. Take my advise don't save money on a aftermarket part unless you want to pay for it's repair twice. How ever if you still want to do this look in the yellow pages in your phone book in your town for any motor re-winder and they can get you one. or look on the net with your zip code for the closest rewinder.
Posted on Feb 05, 2010
Testimonial: "This was very helpful information. Before I received the feeback, I had already ordered the OEM parts. The OEM parts were less expensive too. Thanks"
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