Heat and A/C blowing at same time
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Joined: Sep 2011
Posts: 9
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1987 560 SEL
Heat and A/C blowing at same time
I'm having some issues with my climate control:
The heat and A/C blow at the same time
Makes a loud "clank" noise when 'switching' from heat to A/C (even though both blow at the same time)
Will not stay off, even when "0" is selected it comes off/on intermittently
Any suggestions are appreciated, I've tried switching climate control units and that doesn't make a difference so it's not the unit itself.
The heat and A/C blow at the same time
Makes a loud "clank" noise when 'switching' from heat to A/C (even though both blow at the same time)
Will not stay off, even when "0" is selected it comes off/on intermittently
Any suggestions are appreciated, I've tried switching climate control units and that doesn't make a difference so it's not the unit itself.
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Joined: May 2012
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From: Harbor City, CA
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Answer
My first guess would be a damaged mono valve diaphragm.
Mono Valve Repair Kit - Heater Solenoid Valve
MB# 0008350644
Further suggestions and diagnosis can be found in this link.
Mono valve links thread
http://www.peachparts.com/shopforum/...ml#post2514617
roy@pelicanparts.com
.
Mono Valve Repair Kit - Heater Solenoid Valve
MB# 0008350644
Further suggestions and diagnosis can be found in this link.
Mono valve links thread
http://www.peachparts.com/shopforum/...ml#post2514617
roy@pelicanparts.com
.
