Question about AmcorAire UCHW-H12AF2 Split System Air Conditioner

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Inside blower fan barely running

I have a new system that was just installed but the inside blower fan will not run but at one speed, VERY slow. The unit freezes up very quickly with very little air running over the coils.

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  • Ron Hubbard May 21, 2009

    It turned out that the set screw on the impeller shaft was loose. I was able to get in and tighten it and all is good.

  • Ken Bledsoe May 11, 2010

    Did a professional install unit? He or she should have checked unit out before the job was done. Call them back out they would like to know about the person doing the job did. The fan motor is a milti speed motor and can be wired up wrong

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  • Contributor
  • 478 Answers

Look at the control board for dip switches also the black lead(fast) should be on ac terminal. If the indoor coil is too small or there is restrictced air flow can also cause this problem,

Posted on Mar 12, 2009

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