08-11-2020, 08:15 AM
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#3 (permalink)
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A True Z Fanatic
Join Date: Aug 2013
Location: Shawnee KS
Posts: 5,698
Drives: 15 Magma Red 6MT
Rep Power: 2684377
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Quote:
Originally Posted by Montana370Z
I am having a very frustrating issue with my AC. One day it will blow cold air, the next it will blow warm air. No rhyme or reason to when it works or when it doesn’t. Took it in and my compressor works fine and turns on when power goes to it. I replaced the ambient temp sensor and that didn’t fix the issue either. The mechanic was dumbfounded and couldn’t figure it out. Anyone had a similar issue?
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Quote:
Originally Posted by Rusty
Sounds like it's low on freon.
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The other possibility is that there is too much freon in the system. If a system is over-charged, it may work fine one day because the outside air temp isn't very high, but will not work the next day because the air temp is elevated, causing the freon to expand and trip the high pressure switch. The 'mechanic' should have hung a set of gauges to measure high side & low side pressure. If he didn't, you need to find another place. Good luck.
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2015 Magma Red 6MT Sport Tech/2012 Fairlady MB 6MT Base (RIP 08032018)https://www.nicoclub.com/FSM/370Z/Coupe/
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