# It's Cold and I Have No Neat

**URL:** <https://community.cartalk.com/t/its-cold-and-i-have-no-neat/24745>\
**Category:** Maintenance/Repairs\
**Tags:** heating, volvo, s40\
**Created:** [January 11, 2009, 6:38pm UTC](https://community.cartalk.com/t/its-cold-and-i-have-no-neat/24745 "2009-01-11T18:38:27Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![gardenia](https://avatars.discourse-cdn.com/v4/letter/g/bbce88/32.png) [@gardenia](https://community.cartalk.com/u/gardenia)\
**Post date:** [January 11, 2009, 6:38pm UTC](https://community.cartalk.com/t/its-cold-and-i-have-no-neat/24745/1 "2009-01-11T18:38:27Z")

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And, it’s warm and I have heat. And, I have heat when AC is on. I have heat blowing when fan is turned off. Then, I have no heat at all. Volvo S-40…any suggestions are appreciated.

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**Author:** ![BustedKnuckles](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bustedknuckles/32/25_2.png) [@BustedKnuckles](https://community.cartalk.com/u/BustedKnuckles)\
**Post date:** [January 11, 2009, 6:57pm UTC](https://community.cartalk.com/t/its-cold-and-i-have-no-neat/24745/2 "2009-01-11T18:57:59Z")

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Thermostat in the engine. And, possibly the ventilation control unit. If the blend doors are not opening and closing properly, it is most likely a problem with the control unit.