1981 Other Mazda Models compresor&blower

1981 MAZDA
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RALPH JONES
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Air Conditioning problem
1981 Other Mazda Models 4 cyl Front Wheel Drive Manual
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to start with,the blower motor does not work on #1 speed,2&3 blow normal. my problem is the a/c compresor only runs when the fan switch is in the #1 possition where the blower motor don't work. when you turn the blower motor to the 2or3 speeds the a/c compresor tuns off. if you can help with any advise,it would be great. thank you ,ralph jones ps. it is a glc model madza
Apr 6, 2008 at 1:49 PM
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2CARPRO JACK
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I have no wiring diagrams for that car. Try removing the switch and using a meter, be sure it has continuity (or power) through the switch in all settings. Sounds like it may be losing a connection in higher fan speed settings.Other than that, they ususally have a fan speed resistor in the HVAC box near the blower motor, but I couldnt see that making the a/c comp disengage. BTW.... does the a/c system have a full charge?
Apr 7, 2008 at 8:07 AM