Guys i need your help i own an Alkin W31 4.9cfm compressor. Recently the electric motor blew up and i purchased a new one from Alkin. The oem motor was a 3kw 60hz motor and the one they sent me is a 2.2kw 50hz motor i called them and they told me that this motor will work the same as the 3kw motor and honestly i doubt that since this is a weaker motor and on top of that the motor they sent me is from 2021 its not even new. What can i do about this?
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Alkin W31 Motor Problem need Help.
- Thread starter miamiguy2017
- Start date
Considering the price of the compressor, you have a dilemma. Is it still under warranty? I’m no electrician, but I would use the new motor, and at the same time, find a company locally that repairs motors and take the old one in for repair and keep it as a spare. Plus do you need a Turkish motor? You have the specs on the motor, as long as the shaft and hole pattern are the same, you could find one online or maybe a local company that sells them.
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Maybe someone on the forum has more experience with motors. The cost of sending it back would probably be a hassle, not sure what to tell you. But I would definitely look into a spare, new or used. You shouldn’t be having this problem with the amount of money you paid for the compressor.
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@miamiguy2017 I would insist on obtaining a comparable motor, especially if the specs for the motor on this model are advertised as the same as your original motor. Is you Alkin still under warranty? Have you checked the specs on the Alkin site? Maybe @Humdinger can help you out with advice.
edit: The "Data Sheet" for the W31 Mariner Vertical says its a 4hp (3kW) motor. I'd also refer to the owner's manual and request what's printed there as well as what is printed below.
edit: The "Data Sheet" for the W31 Mariner Vertical says its a 4hp (3kW) motor. I'd also refer to the owner's manual and request what's printed there as well as what is printed below.
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They said this is all they have now. So i guess im screwed with the wrong motor and they keep my money.
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@miamiguy2017 At this point asking questions can't hurt. Consider asking if they can get another one in a future shipment from Turkey. Or maybe ask if they know of a source in the US where you could obtain one the matches the specs of the original motor. Hopefully more knowledgeable members can provided more effective advice. I'd also be asking for help if I were in your shoes.
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Is it possible… that at 60Hz the motor is rated at 3KW. I’m no motor expert but from stuff I’ve read and heard the Hertz makes a difference. The difference might be the labeling. I would maybe try and contact TEE and ask. That label might be on the motor and was intended for the 50Hz market.
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Running the motor @ 60Hz will push it closer to the original motors Kw. You will probably be ok. It would be more of an issue the other way around. Since this is a single phase motor, it uses capacitors that are usually rated for both frequencies. Do you still have the old motor. Its possible the caps took a dump. If so, that's a easy fix.
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There is a start capacitor and a run capacitor. The most common thing to go out on a single phase motor is the caps. Best to replace both.
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How will i know which capacitors i need to buy? Could a bad capacitor cause the motor to run slow?
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Absolutely. I don't know what your skill level is with electrical, but you can remove them and replace with the same model specs from Grainger. Also can test them with a Digital Multimeter. Caps going out on a compressor motor is pretty common.
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