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Condenser fan mounting

What direction should the fan blade rotate when viewed looking down at unit? What is the blade mounting height?

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Re: Condenser fan mounting

Most condenser fan turn ccw looking down into the unit and should be mounted about 1" from motor. A good check is that the air is moving up and out and drawing through the condenser. Thanks

Posted on Aug 10, 2007

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How does it matter which direction condensor fan turns

Yes. The fan is designed to draw air through the condensing unit to expel heat generated by compression and heat exchange in the refrigeration system. If the fan is running the wrong way, heat will not be disipated correctly and the unit will not operate efficiently. You could end up damaging the system.

Aug 18, 2014 | Dometic Rooftop RV Air Conditioner

1 Answer

Condenser fan replaced one year ago, fan not turning but can hear motor

the answer to your problem is most likely the motor start capacitor. A AC motor can run in both directions. The start capacitor is used to cause the current to lag behined the voltage which determines the direction the motor will turn. Its posible the start and run capacitors are in one can. so changing one will change the other. However look for a wiring diagram. Do not asume that both capacitors are wired in properly. They may be fighting one another causeing premature failure.

Sep 18, 2012 | Carrier 38CKC036 Air Conditioner

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Sometimes get a loud screeching noise from the condenser fan motor. Also seems to be loudr than usual. Motor part no. is:S070. Can a "do it yourself" guy replace the unit?

If this is wall/window unit, you can do it but it can be tricky. the fan in window units usually has 2
shafts on either side , it drives fan for both the condenser and evaporator. You basically have to pull the top off, loosen set screw on both blades, remove some screws to move back condenser coil(gently, don't kink tubing) similar process on evap side. Then mount new fan motor, wire it in put fan blades back on in proper position, reassemble unit, test run on bench.

Jun 26, 2011 | Air Conditioners

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Were is the reset button on the unit?

Hi, here is the theory on the reset button on Air Conditioners. They reset via the breaker panel box in your house. Check that first before anything else. However if your unit is popping breakers, it is because the rating for the breaker is incorrect, or there is something that needs servicing usually in the outside unit called the condenser. That piece contains the compressor. A faulty compressor and pop the breaker. Or If the condenser fan that blows over the coils of the outside unit stops (common failure) The compressor will overheat and shut down. That may not trip the breaker but the house will get hot anyway. Usual action for this is to replace the condenser fan motor and starting capacitor. Make sure the speed rating and directional rotation for the replacement motor is the same as the motor removed.
There are other reasons why the system won't come one fully. If the wall thermostat is digital and does nothing. including turning on the fan. There will be a small fuse located on the circuit board of the air handler (part of Air Conditioner mounted inside the house. It houses the circulation fan). That fuse could be blown. That one shuts down just about everything.
On air handlers mounted up into the attic crawl space there is an overflow pan. This pan is mounted directly below the air handler. This pan can fill with water when the drain pain contained inside the air handler starts to overflow because the drain system to that is clogged.
There is a "float switch" mounted in the overflow pan wired to the system in such as way as to shut down the entire AC system if that pan fills.
The handling is to clear the obstruction in the Drip Pan inside the air handler. Then remove enough water from the overflow pan and the AC will run as though nothing has happened.
If you have more questions, write to me on this site.
One thing more. The capacitor alone in the Outside condenser unit can fail and that will stop the condenser completely if it is of a "split" design and used for both the compressor and fan. When replacing this unit alone, ALWAYS find the same specification part.
I hope this helps,
Have a Happy New Year,

Jan 02, 2011 | Goodman CLJ30AR32 Air Conditioner

1 Answer

A/C tech tells me the replacement motor I am using is pull 2.3 amps and the unit wants 2.5 and so the motor shuts off. But the plate on the back of the condenser says it should be 1.6 amps. I would like to...

The fan blade size, pitch, rpm, number of blades and diameter, determine the motor size and rpm.
If your condenser says it should be 1.6 amps and you have 2.3 amp motor in the unit, you have a stronger motor than you need and the motor should not be getting hot and shutting off.
You need to make sure somebody didn't change the blade or the rpm of the motor or the rotation or direction the motor turns. If those are correct then you need to make sure you have the right size capacitor, The size (microfarads and volts) is usually on the motor nameplate. If it's the right one then you need to have it checked and make sure it's good.

Jun 10, 2010 | Air Conditioners

2 Answers

Condenser fan rotating the wrong way

If nothing has been changed you have a bad capacitor and need to change it. Then the fan will run in the right direction. RUSS

Jul 17, 2009 | Air Conditioners

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