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Post by maxheadroom on Sept 29, 2019 8:53:56 GMT -6
Anyone ever tackled repair of 2001 Heater motor?
About to remove one that has the two power wires and a speed control wire.
Will know more when it is opened up, also I intend monitoring the control wire to see the nature of the signal.
Max.
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Paulaurora
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Post by Paulaurora on Sept 29, 2019 11:47:10 GMT -6
you mean hvac blow motor?
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Post by maxheadroom on Sept 29, 2019 12:01:25 GMT -6
you mean hvac blow motor? HVAC blower motor, yes. Max. |
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Paulaurora
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Post by Paulaurora on Sept 29, 2019 16:06:08 GMT -6
Yes there is a lot of topic on that here .. but whats wrong with it?
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Post by AUROD X on Sept 30, 2019 10:25:34 GMT -6
Yeah, my HVAC motor is going out too. I noticed cause it goes out or turns off once in a while. So I give it a good steel toe to the bottom and it's up and running😁. This is just temporary, I'll get on it later before next Summer.
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tigger
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Post by tigger on Sept 30, 2019 23:38:01 GMT -6
About to remove one that has the two power wires and a speed control wire. Will know more when it is opened up, also I intend monitoring the control wire to see the nature of the signal. Max. IIRC, there's only one power wire. The other two are a flange ground and a pulse width modulated motor ground (speed control). You'll need a meter that can read Hz % (duty cycle) to monitor the signal as you adjust the fan speed up top. Have fun digging it out, haha! |
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Post by Tanner Blackart on Oct 1, 2019 4:30:29 GMT -6
I had this issue. Either a Fonzie tap, a well placed kick, or some good railroad tracks got the motor going. In my situation, all I had to do was replace the blower motor itself, not the housing. It's not that hard as 3 bolts takes the motor out. PM9218 is the Murray part number.
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Post by maxheadroom on Oct 4, 2019 12:34:29 GMT -6
Monitored the signal wire and took a shot of the PWM signal which was present, I found a new blower for a really good price, if it had been summer time I would have had a shot at fixing the old one.
But if I manage to fix it, it will be a spare!
Will update later as to what I find.
Took 6 screws and a couple bloody fingers to remove!!
Max.
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