Squealing noise after start-up in cold weather.

by Dan Bloemke
(Lakeville MN)


OLD but dependable approx. (35 years)
Sanborn Twin cylinder electric
104B200 2 HP

1. Squeals after start-up in cold weather which will cease after warm up. 2. I do have the motor wired for 220 VAC and yet motor hesitates on start up.

Thanks for you help.


Comments for Squealing noise after start-up in cold weather.

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Jan 06, 2018
by: Doug in s.d.ca.

Light synthetic -

Do you know the ISO or SAE weight?

How long to "warm up" and squeal cessation?

Jan 04, 2018
cold start
by: Doug in s.d.ca.

Essentially what Bill said.

Have you checked the belt tension and alignment?

Jan 03, 2018
Squealing A/C
by: Dan

+15 degrees F or below. Using a light weight synthetic oil. belt dressing did not help for a trouble shooting indicator. Yes I know it is asking a lot of the compressor.:) Appreciate your help.

Jan 03, 2018
Sandborn squealing noise
by: Bill

How cold is cold? There's a page on the troubleshooting page on this site about what happens to compressors when they get really cold.

I surmise that the cold is causing pump sluggishness, could be the oil or the internal lube, but that's overloading the motor, the motor is strong enough to drive the sheave anyway, so your belt is squealing.


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