# Air cond. on/off

**URL:** <https://community.cartalk.com/t/air-cond-on-off/77677>\
**Category:** Maintenance/Repairs\
**Tags:** cutlass, oldsmobile\
**Created:** [February 28, 2013, 9:55pm UTC](https://community.cartalk.com/t/air-cond-on-off/77677 "2013-02-28T21:55:34Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![PAW-PAW](https://avatars.discourse-cdn.com/v4/letter/p/5f9b8f/32.png) [@PAW-PAW](https://community.cartalk.com/u/PAW-PAW)\
**Post date:** [February 28, 2013, 9:55pm UTC](https://community.cartalk.com/t/air-cond-on-off/77677/1 "2013-02-28T21:55:34Z")

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1999 olds cutlass I am only owner . while driving at all speeds and conditions the air cond will shut off and not cycle back on. If I hit,tap or push on temp control it will come back on also low fan speed (position 1 and 2) does not work.

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**Author:** ![keith](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/keith/32/5518_2.png) [@keith](https://community.cartalk.com/u/keith)\
**Post date:** [March 1, 2013, 7:12am UTC](https://community.cartalk.com/t/air-cond-on-off/77677/2 "2013-03-01T07:12:01Z")

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You might need a resistor network for the blower motor.

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**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\
**Post date:** [March 1, 2013, 7:45am UTC](https://community.cartalk.com/t/air-cond-on-off/77677/3 "2013-03-01T07:45:49Z")

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Does the blower motor cut out?  
Or is the AC compressor disengaging?

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**Author:** ![PAW-PAW](https://avatars.discourse-cdn.com/v4/letter/p/5f9b8f/32.png) [@PAW-PAW](https://community.cartalk.com/u/PAW-PAW)\
**Post date:** [March 7, 2013, 8:38pm UTC](https://community.cartalk.com/t/air-cond-on-off/77677/4 "2013-03-07T20:38:21Z")

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Blower stays on but blows hot air.

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [March 8, 2013, 4:45am UTC](https://community.cartalk.com/t/air-cond-on-off/77677/5 "2013-03-08T04:45:55Z")

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The problem is probably with the AC/Heater controller. Inside the controller are the following.

\*Defroster Control Logic  
\*Air Temperature Control Logic  
\*AC Request Logic  
\*Blower Speed Control Logic.

Tester