ac /heater not working

Dec 8th, 2006, 18:35

First let me say that this is a GREAT forum.

I have a 2001 S40. One day when I got in my car the ac / heater fan would not come on. in addtion , the ac on and off light is completely dead as well as the rear defrost light and the air recirculation light - no amber or green lights at all.

I checked the ecc / blower fuse under the steering wheel and checked the fuses under the bonnet with no success. I have been dirving the car but its getting cold in Virginia and now my wife will not drive the car because there is no heat. Any advise is truly appreciated.

thanks

gnhuk · Dec 8th, 2006, 20:14

I recall seeing similar problems raised here with a solution - the search function will probably find them. Not had the problem with mine.... yet.

Dec 9th, 2006, 02:57

sounds like a dead heater control electronic module, fuses for it, knackered, bad connection, bad ground or something like that to mess up all of these things at the same time.

Check fuse 8 (10A) in engine compartment & fuse 1 (25A) in passenger compartment.

Pete

gnhuk · Dec 9th, 2006, 19:45

I've remembered what I was thinking of - the "wiring under the radiator" fault...

Dec 9th, 2006, 20:08

these are all good tips. I am goin to try them all and I will keep everyone posted. It is frezing cold outside so I will not get a chance today but tomorrow I will take a crack at it. thanks gnhuk, peteS40, and 4 fouty.

Dec 10th, 2006, 19:34

Based on all the sugestions I have tried the following.

I roatated the fuses around checking fuse 8 (10A) in engine compartment & fuse 1 (25A) in passenger compartment.

I removed the fan, fan directional, and the temp knobs and the face plate on the center console to check to see if there is anything obvious with no avail

I then removed the skirt under the front of car to get better access to insepct under the radiator. everything looks OK. I grabbed the bundle of wries under the raidiator and jiggles it around and looked to see if its brttle to the touch and it seened normal. There is a lot of objects under there and I am a little hesistant to move forward with any further dismanteling without touching base with the forum and a little more research.

Very baffling. .............

Dec 8th, 2006, 18:35	#1
adough Guest Location:	ac /heater not working First let me say that this is a GREAT forum. I have a 2001 S40. One day when I got in my car the ac / heater fan would not come on. in addtion , the ac on and off light is completely dead as well as the rear defrost light and the air recirculation light - no amber or green lights at all. I checked the ecc / blower fuse under the steering wheel and checked the fuses under the bonnet with no success. I have been dirving the car but its getting cold in Virginia and now my wife will not drive the car because there is no heat. Any advise is truly appreciated. thanks

Dec 8th, 2006, 20:14	#2
gnhuk Balding............. Last Online: Jun 29th, 2018 10:35 Join Date: Dec 2003 Location: Linslade	I recall seeing similar problems raised here with a solution - the search function will probably find them. Not had the problem with mine.... yet. __________________ Gavin VOC17969 2000 S40 1.8S -with various options (Now sold @135k miles) 2012 S40D3 R-Design

Dec 9th, 2006, 19:45	#4
gnhuk Balding............. Last Online: Jun 29th, 2018 10:35 Join Date: Dec 2003 Location: Linslade	I've remembered what I was thinking of - the "wiring under the radiator" fault... __________________ Gavin VOC17969 2000 S40 1.8S -with various options (Now sold @135k miles) 2012 S40D3 R-Design

Dec 9th, 2006, 20:08	#5
adough Guest Location:	Thanks these are all good tips. I am goin to try them all and I will keep everyone posted. It is frezing cold outside so I will not get a chance today but tomorrow I will take a crack at it. thanks gnhuk, peteS40, and 4 fouty.

Dec 10th, 2006, 19:34	#6
adough Guest Location:	second try Based on all the sugestions I have tried the following. I roatated the fuses around checking fuse 8 (10A) in engine compartment & fuse 1 (25A) in passenger compartment. I removed the fan, fan directional, and the temp knobs and the face plate on the center console to check to see if there is anything obvious with no avail I then removed the skirt under the front of car to get better access to insepct under the radiator. everything looks OK. I grabbed the bundle of wries under the raidiator and jiggles it around and looked to see if its brttle to the touch and it seened normal. There is a lot of objects under there and I am a little hesistant to move forward with any further dismanteling without touching base with the forum and a little more research. Very baffling. .............

Dec 9th, 2006, 02:57	#3
peteS40 Guest Location:	sounds like a dead heater control electronic module, fuses for it, knackered, bad connection, bad ground or something like that to mess up all of these things at the same time. Check fuse 8 (10A) in engine compartment & fuse 1 (25A) in passenger compartment. Pete

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