Dash A/C voltage drop

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Topic: Dash A/C voltage drop (Read 289 times) previous topic - next topic

Dash A/C voltage drop

July 18, 2021, 09:22:48 am

When I turn on the dash AC my voltage drops from 13.6 or 14 volts to 12.6 and will drop even more if I leave it on for a few minutes. Voltage reading is on my silver leaf not from a voltmeter reading. I am not sure where to start looking. This is with engine running.
Thanks for any help or ideas.
Ron

Re: Dash A/C voltage drop

Reply #1 – July 18, 2021, 09:37:37 am

Could be either a poor connection on the positive side or a ground issue.

Start by tightening all the ground connections up front.

Re: Dash A/C voltage drop

Reply #2 – July 18, 2021, 04:22:01 pm

When that happened to me it was the condenser fan that was bad and drawing too much current.

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