I have a 98 444e compressor not kicking on even after jumper wire on on the high pressure switch no blown fuses and relay seem to be ok not loose or smelling burnt
international ac problem
Discussion in 'International Forum' started by IanG, Sep 26, 2015.
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On those, if the high or low pressure switch is jumped, it will kill power to the compressor, so leave unplugged for testing. Power starts at your ac on switch, then goes through the freeze switch in the evaporator and then to terminal 30 of the ac relay. So see if you are getting power at that 30 terminal. If you pull out that relay and it clicks, that means it is taking power away from the ac compressor, not supply it, and one of the pressure switches is tripping.
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I replaced the ac switch in the dash and can get it to turn on for a few seconds then back off. turn the switch off for 2 seconds and turn it back on does the same thing. Try to add Freon thinking maybe to low for it to kick on but says there to much so push the pin and just blows air for 5 seconds before any gas starts coming out. Push the pin on the canister and a blows Freon out soon as you touch it. Drained some out of the fill spot till it reads in the green not the red still won’t kick on
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I also checked the fuse it is good and both relays seem fine don’t smell burn or have any burn spots
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Sounds like one of the pressure switches are getting tripped. Unplug one of them at a time and retest to see if keeps running. Then you need to get a proper ac machine connected to it to see what the system pressures are.
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