Blower motor not working right

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ThatDudeMike

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Hello. The blower motor in my my air handler (American Standard TWE031E13FB1) stopped functioning properly. The fan will try to start, but then stops, then tries to start, then stops. It keeps repeating this cycle until I turn the unit off. I had a similar issue previously 3 years ago & I replaced the blower motor module, which fixed the issue at that time, so I thought it could be the same issue, however replacing the module had no change this time. What else should I be looking at? Could it possibly be the transformer?
 
ThatDudeMike said:
Hello. The blower motor in my my air handler (American Standard TWE031E13FB1) stopped functioning properly. The fan will try to start, but then stops, then tries to start, then stops. It keeps repeating this cycle until I turn the unit off. I had a similar issue previously 3 years ago & I replaced the blower motor module, which fixed the issue at that time, so I thought it could be the same issue, however replacing the module had no change this time. What else should I be looking at? Could it possibly be the transformer?
Click to expand...
Not an expert, but that sounds like a run capacitor problem to me. I don't know how to test them, but they are inexpensive to replace.
 
This is an ECM motor. Try looking it up on youtube and see what is required to test and repair.
 
There can be several causes, such as fan clogged with dirt, a dead motor, a loose fan belt or a stuck wheel don’t let your ac blower work properly. You need to check all these causes if your ac blower motor not working properly or consult an expert to fix it.
 
ThatDudeMike said:
Hello. The blower motor in my my air handler (American Standard TWE031E13FB1) stopped functioning properly. The fan will try to start, but then stops, then tries to start, then stops. It keeps repeating this cycle until I turn the unit off. I had a similar issue previously 3 years ago & I replaced the blower motor module, which fixed the issue at that time, so I thought it could be the same issue, however replacing the module had no change this time. What else should I be looking at? Could it possibly be the transformer?
Click to expand...

Below is a list of possible causes.

  • Faulty relay or fan control
  • Faulty motor
  • Faulty fan belt
  • Bad wiring
  • Faulty thermostat
  • Frozen coil due to an air conditioning problem
  • Bad or weak motor capacitor
  • Breaker or switch off
  • Filter completely blocked
 
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