Could be any number of problems.
If the fan has multiple speeds, does the motor have multiple wires going to it
or is the speed control done electronically? If there are multiple wires does
the problem occur on all speeds?
There should be a wiring diagram inside the unit somewhere. If so, shoot a
picture of it & send it to me.
Look at all the connections from the control board to the motor. A loose
connection can cause this. If the connections are standard 1/4â?? quick
disconnects you might try tightening the up a bit. Check for corrosion too.
Connect a meter or light across the motor wires. See if the voltage is there
when the motor is off.
It might be a problem with the control board. If so, they can be relatively
pricey for new. Check out eBay.
Peace,
Pat
Pat Horne
We support Habitat for Humanity
On Jun 3, 2020, at 8:14 PM, Jim Franklin <jamesf@groupwbench.org> wrote:
A friend got a nice mini split system and have me his Frigidaire window AC.
Weird problem is, the compressor runs when needed, but the fan shuts off
intermittently. Sometimes it'll blow for a few minutes, other times for a few
seconds. How long it stops is intermittent too. The compressor will even
happily run while the fan doesn't.
Is this a normal broken situation that's easily diagnosed or am I in for a
world of troubleshooting?
thanks,
jim
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