Thio

Electric heater

7 posts in this topic

Hi everyone

Just preparing for the cold weather and noticed when l slide the heater lever all the to the right to turn on the auxillary heater it lights up for a few seconds then the light goes off. 

Not sure if the heater is kaput or something else. Any help greatly appreciated.

Thio

 

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Posted (edited) · Report post

3 hours ago, Thio said:

Hi everyone

Just preparing for the cold weather and noticed when l slide the heater lever all the to the right to turn on the auxillary heater it lights up for a few seconds then the light goes off. 

Not sure if the heater is kaput or something else. Any help greatly appreciated.

Thio

 

 

At last one of my cars behaves the same and I have often wondered if there is more to the story.

 

The resistive heater is apparently computer controlled. Please read the second last post.

 

http://clubsmartcar.com/index.php?/topic/7742-ptc-heater-booster/

 

Another link which I believe applies to our cars.

 

http://clubsmartcar.com/applications/core/interface/file/attachment.php?id=26284

 

Edited by smartdriver

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Electric heater is controlled by glow plug controller. Switches on only when coolant temperature is below 8 C. Switches off automatically when coolant temperature goes above 80 C. 

Hot/cold temperature control lever when moved all the way to the right operates a microswitch.  Sometimes the outer casing on control cable needs adjustment for switch to operate correctly. Light in instrument panel stays on constantly when lever is moved all the way to the right. 

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1 hour ago, Huronlad said:

Tolson's description does not agree with how the system worked in my 2005 cdi.  The booster would function with coolant temps over 70 C.

 

https://youtu.be/B-6nS-NaYhw

Electric heater turns off when coolant reaches 80 C, not 60 C which I mistyped above. 

More info on the heater below:

 

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Thank you for all your replies. It seemed to have fixed itself. Perhaps the outside temp was the issue? Either way the light stays on when activated whether there is any heat l cannot say. If it does work l cant feel it.

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