[MBZ] AC Compressor staying engaged.

[Michael Esh]

AC Compressor is staying engaged even though the temps are in low 20's  
F.  It does disengage when in economy mode or off button is pushed on  
CCU. Is this caused by a faulty switch or relay.  Any suggestions or  
trouble shooting write-ups would be appreciated.


thanks,
Mike

1984 300D
___
http://www.okiebenz.com
For new and used parts go to www.okiebenz.com
To search list archives http://www.okiebenz.com/archive/

To Unsubscribe or change delivery options go to:
http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com

Re: [MBZ] AC Compressor staying engaged.

[Peter Frederick]

Could be a bad temp sensor (outside air most likely) or a bad PBCU.   
A stuck relay would run it all the time.


Peter

___
http://www.okiebenz.com
For new and used parts go to www.okiebenz.com
To search list archives http://www.okiebenz.com/archive/

To Unsubscribe or change delivery options go to:
http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com

Re: [MBZ] AC Compressor staying engaged.

[John Reames]

I would suspect the evaporator temperature switch (I don't remember  
the location in the w123 chassis, but it will be near the evaporator  
case)


It should cut out at 25F...


--
John W Reames
jwrea...@comcast.net
Home: +14106646986
Mobile: +14437915905

On Jan 2, 2010, at 10:04 AM, Michael Esh michael...@me.com wrote:

AC Compressor is staying engaged even though the temps are in low  
20's F.  It does disengage when in economy mode or off button is  
pushed on CCU. Is this caused by a faulty switch or relay.  Any  
suggestions or trouble shooting write-ups would be appreciated.


thanks,
Mike

1984 300D
___
http://www.okiebenz.com
For new and used parts go to www.okiebenz.com
To search list archives http://www.okiebenz.com/archive/

To Unsubscribe or change delivery options go to:
http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com


___
http://www.okiebenz.com
For new and used parts go to www.okiebenz.com
To search list archives http://www.okiebenz.com/archive/

To Unsubscribe or change delivery options go to:
http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com