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Old 10-28-2020, 01:30 AM   #1
chev-obsession
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A/C blower motor relay

Excuse my ignorance, this thought just came to me and didnít find anything In a search.

Is there any benefit to replacing the AC blower motor relay with a Bosch style SPST relay?
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Old 10-28-2020, 10:09 PM   #2
Andy4639
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Thumbs up Re: A/C blower motor relay

Quote:
Originally Posted by chev-obsession View Post
Excuse my ignorance, this thought just came to me and didnít find anything In a search.

Is there any benefit to replacing the AC blower motor relay with a Bosch style SPST relay?
They both work in the same manner so as far as one better than the other I doubt it other than the fact your talking 50 years of technology.
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Old 10-29-2020, 07:22 PM   #3
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Re: A/C blower motor relay

I trust a 50 year old relay to work another 50 years and probably outlast a new Chinese relay. GMC Pauls sells a USA made replacement relay for that position.
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Old 10-29-2020, 09:23 PM   #4
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Re: A/C blower motor relay

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I trust a 50 year old relay to work another 50 years and probably outlast a new Chinese relay. GMC Pauls sells a USA made replacement relay for that position.
Sounds good, I know the brown wires on the AC systems are notorious for getting hot and didnít know if by adding a Bosch style relay if that would alleviate that problem.
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Old 10-29-2020, 09:57 PM   #5
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Re: A/C blower motor relay

Well since the relay is used for the high speed fan position, I would expect the brown wire would run nice and cool with the fan on high speed. Perhaps it could be warm in the low and medium speed positions. I haven't heard of the notorious hot brown wire before, but I know my fan switch connector was melted and fan switch was bad before I replaced those 2 parts.
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