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Keeprite 2300 sx a/c w/ 2 speed fan never seems to go high speed .should I be able to hear it change and how do I dainose the problem ? and does this cause poor cooling ? the compressor unit line is cold and sweating outside the A coil is cool not cold the small line is warm but not hot the unit will not cool past 24C it is 30 C outside and continues to run making no difference in temp, set the temp at 25c it will cycle and cool .the gas charge in the system is correct pressure this is an R22 unit also have not been able to find wiring diagrams on line for this unit if you could help that would be great Thanks Ed

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  • Heating & Co... Master
  • 1,202 Answers

I need more info. I can't seem to find your indoor unit. Is this a 2 stage cooling unit or just 2 speed fan? Please send the model number of your indoor unit.

Posted on Apr 11, 2017

6 Suggested Answers

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Posted on Jan 02, 2017

Therinnaiguy
  • 1420 Answers

SOURCE: no cooling after power out, indicator lights pattern not in manual

The Mitsubishi units have to be reset by turning off the indoor units by switching the remote or thermostat to off. Then turn off the breaker to the outside unit(s). After 30 seconds,turn on the breaker and then you can turn on the remote for cool. If no lights come on on the inside units, most likely you have blown a fuse soldered on the main PC board. At this point, call your technician. A goos tech will be able to wire in an in-line fuse holder so if it should happen again, you can easily replace the fuse. If you do see a light or two come on at the indoor unit but the outdoor unit does not start after 3 or 4 minutes, sounds like you will need to call a technician. Most likely you have a blown fuse on the main PC board of the outside unit. It is not an easy one to replace. Good Luck!

Posted on Sep 04, 2007

  • 121 Answers

SOURCE: coleman rv a/c

It is definitely with the compressor. It should more like you may have a weak winding in the compressor, you can a hard start capacitor (sp5 ) that will help the compressor on restart. Note that this is a last chance solution for a compressor.








Posted on Oct 01, 2008

  • 4 Answers

SOURCE: Blowing hot air, compressor not kicking on, just fan ? ?

are you speaking of the outside fan or inside? compressor should be a little warm but not boiling hot. the unit could be low on freon. if low it will run a while but the compressor will overheat and shut off leaving the fan running by itself ouside. if nothing outside is running check power. if you have power check the contacted outside to make sure it's pulled in. contacters are bad about going out on goodman untis. Also ants can get under contacts.

Posted on Jun 18, 2009

  • 148 Answers

SOURCE: outside compressor off while handler on inside, no cooling

CHECK WIRING MAKING SURE NOTHING FELL OFF BUT IF NOT REPLACE THE MOTOR BEFORE YOU BLOW YOUR COMPRESSOR

Posted on Jun 20, 2009

  • 534 Answers

SOURCE: Amana Cooling Condensing Unit fan won't kick on

be aware that not repairing this asap that you are causing yourself more problems First I would change out the fan capacitor and see if this could be the problem. Secondly if the capacitor isn,t the problem change out the motor . By continuing to allow the system to cycle like this the compressor will take a dive on you costing more . Good Luck

Dave

Posted on Aug 04, 2009

Testimonial: "Yes, it's dual run capacitor problem. I used a stick to spin the fan blades and it starts to slowly spin and up to normal speed, so motor is good."

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3 speed fan barely changes speed


You are talking about your blower fan for the air conditioner and heater right? More information will be needed to solve the problem.

When you say it barely changes speeds, does that mean it doesnt speed up, or doesnt slow down? By that I mean, is it "stuck" on low, or high?

Most blower fans run at different speeds through the use of a multi-stage resistor built into the fan switch circuit. Low speed is a high value resistor, medium speed is a low value one, and high speed is the fan running without any resistance.

If your fan is running on high and doesnt seem to want to run on lower speeds, the resistor pack may be failing. If the fan is running on low speed only, it may be that the fan itself is beginning to fail, or that the lubricant in it has gotten gummy.

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Verify the humidity reading with another device. Perhaps the humidity sensor is dirty or bad.

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