Question about Heating & Cooling
New Ruud 2.5 Ton 14 SEER Variable Speed Heat Pump, Running A/C, intermittently the variable speed fan tries to come on and you hear thumping in the duct work like the fan is trying to spin up. Takes 5-10 seconds and then it fires up and blows nice and cold.
Only happens every few days once or twice.
Only hear it at night since I'm gone most of the day.
Any ideas what it might be?
Air Handler Model Number is UHLA-HM3617JA
I dont have axcess to a wiring diagram but i am pretty familiar i know the heater wiring is crazy on these what are you having trouble with??
Posted on Nov 24, 2007
It sounds like your condenser fan motor may be locked up or the capacitor that helps give the condenser fan motor a kick to get it started may be defective. Try turning your system on and using a long screwdriver try to push the fan blade on the condenser fan motor to see if it will run normally if you give it the starting boost it needs.If it does run at full speed and doesn't over heat or start and then slow down then you probably only need to replace a simple 10-12$ capacitor. If it barely turns, makes an odd humming sound or overheats etc. then you will have to replace the condenser fan motor. This is assuming that the outdoor condenser has the 220v supplied and the 24v supplied to the compressor relay, that the compressor relay is engaged and suppling 220v to the condenser fan motor.
Posted on May 30, 2008
i dont think so that variable speed air handler is a nightmare when(not if) that motor goes bad its 700.00 to 900.00 the regular 3 speed one your getting 125.00 and it will last 10 to 15 years ....... if you realy want fun install a 17 seer system ,you will have your repair guy on speed dial
Posted on Mar 01, 2009
I'd look in one of 2 areas.
1. often there is a central return in the house. This is the place where the air gets pulled back to the unit and is likely very close to your thermostat. Check for a filtered louvered grill there and see if your filter is located here. If so, you can access the filter by opening the filter frame with a screwdriver or even a coin.
2. Otherwise I would expect that your filter is on the return-air side of your air handler (where the blower is) Older models have the filter actually inside the air handler in the blower compartment. Newer models may have a small separate filter door. I'd look in these areas.
hope this helps
Posted on Mar 21, 2009
SOURCE: Air Handler leaking
First make sure unit is level. Drain pan may be dirty. On the rheem or Ruud unit the back of the pan gets stopped up. Ithas small holes that let the water by and they get stopped up. Now even though your drain is clean you may have a stopped up dain pan. Check this > These are problems you can take care of your self. Open up the top panel of your unit and you can look down on the drain pan. Check for dirt and stoppage near the outlet of the drain pan. You amy also have a cracked drain pan but I doubt it. Rus
Posted on Jul 14, 2009
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