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Can someone tell me if the motor with the arm in this unit which raises the vent is powered by 120V AC??
Dacor RV30 1998
Among other issues with this unit, this motor seems to run slow and over heats. I want to test it disconnected from the main PCB and connected directly to a 120V AC supply.
I really suspect the main PCB is fried as the fan voltage is very low (43V AC) and the unit is basically not operational.
Any thoughts on the main PCB health.
Voltages at L2 and N2 seem ok , fuse is OK and L3 N3 has 120V. Pad continuity checks OK.
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Rank: Member
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Originally Posted by: Appliance Ninja  Thanks Ninja Will test motor with 120V. Motor will turn but stutter and finally stop about half way between limit switches. Also over heats... and I have it unlinked from the vent sleeve. And it has 120v from PCB....so really looks like a faulty motor. But also why only 43v or less from PCB to fan motor?? Can sleeve motor be drawing to much amps from main PCB making PCB look bad?? Or do I have a bad motor and bad PCB at same time?
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I am a bit confused. You stated you have 120 VAC from the PCB but it is only sending 43 VAC. Can you please clarify what voltage the motor is receiving when it is running?
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Originally Posted by: Appliance Ninja I am a bit confused. You stated you have 120 VAC from the PCB but it is only sending 43 VAC. Can you please clarify what voltage the motor is receiving when it is running? The sleeve raising motor is at 120VAC from the main PCB . The main PCB voltage to the remote fan motor is at 43VAC and sometimes much lower.
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I understand now, thank you. Two different motors. The low voltage is caused from a faulty PCB, I do not suspect the motor is faulty.
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Originally Posted by: Appliance Ninja I understand now, thank you. Two different motors. The low voltage is caused from a faulty PCB, I do not suspect the motor is faulty. I agree probably PCB. But will check motor since that's easy. Will let you know results TX
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Rank: Member
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Originally Posted by: Appliance Ninja Sounds good, thank you! Put 120VAC on sleeve motor and it ran well. Replaced main PCB and all is now OK. Thanks again!
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That is great news, very well done! Feels good to save $100 or more on a service call! :)
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