How often should an AC compressor cycle? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

badpeanut · 07-01-2008, 09:42 PM

I'm working on a '77 with AC that was coverted to R134a two years ago by a professional. It was so low on refrigerant this spring the compressor wouldn't kick in and cool. After I added two cans of R134a it blows acceptably cold air and reads in the recommended pressure range while it is running, but the compressor cycles every minute or so.

Am I correct to assume it is still low?

How often should the compressor cycle if it is properly charged?

Is cycling the compressor like this bad?

07-01-2008, 09:42 PM	#1
badpeanut Not a bad nut after all.. Join Date: Dec 2000 Location: ND Posts: 1,759	How often should an AC compressor cycle? I'm working on a '77 with AC that was coverted to R134a two years ago by a professional. It was so low on refrigerant this spring the compressor wouldn't kick in and cool. After I added two cans of R134a it blows acceptably cold air and reads in the recommended pressure range while it is running, but the compressor cycles every minute or so. Am I correct to assume it is still low? How often should the compressor cycle if it is properly charged? Is cycling the compressor like this bad? __________________ '05 Chevy 2500HD 4x4 '72 GMC LWB 4x2 driver '72 Chevy LWB 4x4 plow truck '71 Blazer 4x4 driver '70 GMC LWB trailer

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