Ok, got a brain teaser. My ac on my w900 won't cycle and the evaporative core in cab will freeze up after a while on the outside not internally. Checked freon level, it is good. Changed high and low pressure switches and thermostat switch. The compressor still runs all the time won't cycle. Any ideas?
a/c
Discussion in 'Trucks [ Eighteen Wheelers ]' started by Superhauler, Jul 27, 2016.
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Expansion valve bad...
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passingthru69 Thanks this.
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Does the compressor shut off when you shut the A/C off? If not, possibly the A/C clutch relay stuck on?
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If you figure it out share some info with an ol pal. My red 359 is doing the same thing.
Oxbow and Superhauler Thank this. -
Thermostat switch. You're talking about the one that goes into the evap core correct? Did you put the probe into the center of the core?
Superhauler Thanks this. -
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wore out Thanks this.
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Superhauler Thanks this.
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