300 CE 24 Hot air only!

johnemery5

Senior Member
Joined
Jan 11, 2008
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Location
Near Chard Somerset
Website
www.westerngarage.couk
Your Mercedes
1994 E320 Coupe Sports Chassis Black AMG Alloys
HMy neighbours car will only put out hot air regardless of where the temp settings are. The EC, Recirc and demist lights do not light up either. Any ideas? Thanks
 

television

Always remembered RIP
Joined
Mar 14, 2005
Messages
164,073
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331
Age
86
Location
Daventry
Your Mercedes
2002 SL500, 216 CL500, all fully loaded
Sounds like the control box has failed, if this was the duo valve it would not affect the other fuctions
 

television

Always remembered RIP
Joined
Mar 14, 2005
Messages
164,073
Reaction score
331
Age
86
Location
Daventry
Your Mercedes
2002 SL500, 216 CL500, all fully loaded
It needs someone with a volt meter,,you could check the output that goes to the duo valve off, and moving the control knobs from hot 0volt to cold 11v approx, you can pull the connector off the duovalve and put the meter into the center pin and either outside one
 


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