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Reply to "A/C thermostat dial is a switch, no difference in cooling output between barely on and cranked."

Hi Steve. Good questions! I can't tell if the compressor is cycling. Unlike the old York, I can't hear the Sanden start and stop with the engine running and I've replaced the engine cover and back panel. I'll stick my endoscope back there and see if I can watch the clutch.

The tube from the thermostat is going through a hole with a grommet into the evaporator but I can't tell where or how it contacts the evaporator.

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