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#1 |
Registered User
Join Date: Jan 2017
Location: orlando florida
Posts: 113
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does A/C need a relay? ignition switch HOT to touch
When i run my A/C (classic Air) the terminal on back of my Ignition switch get very hot to touch.
I notice my a/c switch get power from what appears to be a heavy gauge wire from the fuse box. Do A/C units need a separate Relay kit? thanks Allan |
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#2 |
1965 Chevy C10, 2005 4.8L/4l60
![]() Join Date: Aug 2004
Location: DFW Texas
Posts: 8,541
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Re: does A/C need a relay? ignition switch HOT to touch
Most aftermarket ac systems do have a relay. I have an Old Aitlr Products system and it has one. I also do everything I can to avoid pumping modern accessories through my trucks switches or fuse block. Headlights are an example.
Good luck!
__________________
Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684 ![]() ![]() ![]() support our troops! |
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#3 |
Registered User
Join Date: Jan 2017
Location: orlando florida
Posts: 113
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Re: does A/C need a relay? ignition switch HOT to touch
thanks i will see about getting a relay
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#4 |
Registered User
Join Date: Jan 2017
Location: orlando florida
Posts: 113
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Re: does A/C need a relay? ignition switch HOT to touch
I added a painless relay kit to my radiator coolant fan, this seems to have fixed my problem.
Will keep an eye on it, may add a A/C blower relay kit later, i think i can use the same painless coolant fan kit |
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#5 |
Registered User
Join Date: Jan 2017
Location: orlando florida
Posts: 113
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Re: does A/C need a relay? ignition switch HOT to touch
added the relay for my A/C today , ignition switch now cool to touch. i think this is going to take care of the problem.
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#6 |
1965 Chevy C10, 2005 4.8L/4l60
![]() Join Date: Aug 2004
Location: DFW Texas
Posts: 8,541
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Re: does A/C need a relay? ignition switch HOT to touch
Outstanding!
__________________
Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684 ![]() ![]() ![]() support our troops! |
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#7 |
Registered User
Join Date: Jan 2017
Location: orlando florida
Posts: 113
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Re: does A/C need a relay? ignition switch HOT to touch
added thermostat switch to radiator fan, love this , much better than 100% on
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#8 |
Registered User
Join Date: Feb 2009
Location: southeasternfoothillsofusa
Posts: 1,557
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IMO, we guys would be smart to keep a 'few' relays lying around. Standard in their build and wiring, buying a few at one time is a cheap investment, and before you know it, you are out of them and need to order more. I like to get caught up into sensible habits that we don't ever have to 'break'.
sam |
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#9 |
Moderator
![]() ![]() Join Date: Aug 2011
Location: China Spring, TX
Posts: 7,280
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Re: does A/C need a relay? ignition switch HOT to touch
Hasnt been a good match with my car/truck hobby.
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__________________
Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats? |
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