Thread Number: 58142
/ Tag: Wringer Washers
Is my wringer motor running too hot? |
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Post# 806407 , Reply# 1   1/28/2015 at 05:09 (3,347 days old) by arbilab (Ft Worth TX (Ridglea))   |   | |
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"Uncomfortable" after "a few minutes" does sound like it's working a bit hard. How "uncomfortable" was it after doing the whole load?
Motors can be hot enough to make you let go of it pretty much right away and still be operating normally. Upwards of 150F. Vented motors really start cooling themselves when they get really hot. This one is vented, right? Well actually, sealed motors do that too, but the case size for a given rating will be higher to provide radiating surface area. Washer motors tend to be vented because 1) they tend to be compact and 2) there's no reason not to vent them. Above are generalizations based on a wide range of motors and other electrical devices. But not specific to your machine. |
Post# 806513 , Reply# 3   1/28/2015 at 19:04 (3,346 days old) by combo52 (50 Year Repair Tech Beltsville,Md)   |   | |
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It is normal for these type motors to get uncomfortably warm after running a while, generally too warm to keep your bare hand on.
The replacement 1/2HP motor will run hotter and use more power than the orignal 1/3 HP motor and it will return no benefit to the operation of the washer, this washer simply does not need a 1/2HP motor. [ but it should work OK ]
The hot paint smell is normal, it will become less noticeable after the motor runs and works 10-20 hours.
The only concern I would have is if the motor cuts off after running for a few hours on its overload. You can check the voltage at the motor with the motor running, it should be at least 105 volts minimum, 120 is normal, you can also check the Amp draw while running, it differently should not go over the mane plate ratting of 8 Amps and probably should be an amp or two less.
John L. |
Post# 806554 , Reply# 5   1/29/2015 at 04:11 (3,346 days old) by arbilab (Ft Worth TX (Ridglea))   |   | |
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Understood. Add to that, your 'uncomfortable' and mine could be off by >15*. I have thick skin and groped a lot of motors, transformers, heatsinks.
See above about voltage. Unlike heaters which produce much less heat on reduced voltage, motors produce MORE. Inadvisable to operate on 'standard household' extension cord. You're right to be cautious but if that motor was in danger I think you would have used a different adjective than 'uncomfortable'. Keep monitoring. |