heater stays on hot

Discuss your 2000-2005 Bonneville SE, SLE, SSEi, Buick Le Sabre 00-05 and Buick Park Avenue 97-05. Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.
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farmermike
SE Member
SE Member
Posts: 16
Joined: Fri May 01, 2015 9:17 pm
Year and Trim: 2001 Bonneville

heater stays on hot

Post by farmermike »

With the controller on cold it still blows hot. With the AC on it does blow cold. My wife doesn't like AC but can't stand it blowing HOT air. Is this more likely a controller or whatever drives the hot water valve?
Oh yeah, it's a 2001 Bonneville. Thanks, Mike
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nos4blood70
Certified Bonneville Nut
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Posts: 9522
Joined: Mon May 10, 2010 6:11 pm
Year and Trim: 2003 SLE
Location: Chicago, IL

Re: heater stays on hot

Post by nos4blood70 »

Welcome…

Auto climate or manual?
-Car Guy Carl
"Penelope" - 2003 SLE - 250k Miles
"Sydney" - 2000 Honda S2000 - 101k miles
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farmermike
SE Member
SE Member
Posts: 16
Joined: Fri May 01, 2015 9:17 pm
Year and Trim: 2001 Bonneville

Re: heater stays on hot

Post by farmermike »

I guess you'ld call it auto. The temp control knob feels like a rheostat.
farmermike
SE Member
SE Member
Posts: 16
Joined: Fri May 01, 2015 9:17 pm
Year and Trim: 2001 Bonneville

Re: heater stays on hot

Post by farmermike »

I pulled the controller out and opened it up. Nothing looked burnt or had gotten hot. Put it back in and now it works, maybe a bad connection. I'll leave the trim and glove box off for now and see if it keeps working.
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