No heat in my 5000TQ

Kneale Brownson kneale at coslink.net
Thu Dec 15 14:35:32 EST 2005


Check the electrical connections on top of the evaporator box next to the
heater core box.  The trapezoidal-shaped cover contains a sensor that
controls whether the blower goes on or not, I believe.


At 07:00 AM 12/15/2005 -0500, Stricker, Michael wrote:
>Hi,
>
>After replacing the HVAC controller (thanks to Chris at www.Force5auto.com), 
>I can hear the programmer working properly.  The blower motor still doesn't 
>work.  I have connected it up directly to an adjustable power supply and it 
>works fine (so the brushes are ok).  I checked the fuse and it is good.  I 
>suspect a bad ground or some other broken wire since the HVAC controller 
>diagnostic code for the voltage across the blower indicates '0' volts.
>
>Not having my Bentley with me, I am at a loss so I was hoping that someone 
>could tell me what the wiring looks like going from the controller to the 
>blower.
>
>Thanks in advance.
>
>Mike, 19885ktq
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