EC light stuck ON - no more AC
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Newbie
Joined: Mar 2007
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EC light stuck ON - no more AC
Hi guys, I was wondering if any one has any insight what could cause the EC ie economy light on my 1998 CLK320 no to go OFF any longer.
With EC turned ON on temp control panel I've no AC just heater control. I can not turn the EC off.
Any help is greatly appreciated.
With EC turned ON on temp control panel I've no AC just heater control. I can not turn the EC off.
Any help is greatly appreciated.
MBWorld Fanatic!
Joined: Apr 2005
Posts: 3,784
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From: SCV SoCal
2002 CLK430
The EC light will stay on if the system is low on freon.
Member
Joined: May 2007
Posts: 232
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From: Southern Cali
CLK320, Honda Ruckus, pinto & BMX
AC EC constantly on
i have the same problem... once the freon is low the EC light comes on to indicate that it has shut off the AC connection... therefore once the freon is refilled... the climate control unit needs to be reset... and if reseting doesn't do the trick.. then its the Climate control unit itself... thats where i m at now.. with no freakin AC.. hot as hell... and a used one could be like $600.. so lets hope yours is just low on freon and not the whole control panel..
later
later
Newbie
Joined: May 2007
Posts: 5
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From: Las Vegas, Nevada
CLK320
EC Switch Operation (if not low on freon)
To recap my reply to Scottster77, you can make the AC come on if the problem is not low freon. Just leave the ignition on (with the EC light on) for a few seconds (I usually just put on my seat belt), then turn off the ignition. When you turn on the ignition again, the EC light can be turned off.
Member
Joined: May 2007
Posts: 232
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From: Southern Cali
CLK320, Honda Ruckus, pinto & BMX
well.. its the EC light is on constant... its been like that for months... the local benz specialist said.. no power is distributing ....... i still need a new climate control unit!!! but thanks for the info
Member
Joined: May 2007
Posts: 232
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From: Southern Cali
CLK320, Honda Ruckus, pinto & BMX
Take it to a benz specialist or the dealer and have them reset the climate system.. well.. after your freon/refridgerant is recharged.. and assumin that there are no leaks.. that could also be a possibility that the EC light is still on.. Finally got my EC off and the AC is up and operational... thank god.. its gonna be a hot summer
Senior Member
Joined: Feb 2011
Posts: 498
Likes: 7
From: South Florida
1998 C43, 2017 Honda Accord Sport
Reviving this because I have a similar problem: both the Auto and EC lights stay on. Went into diagnostic mode with the climate control unit....no error codes displayed. I also think (if I was reading the right diagnostic code) that the freon pressure is at 13 BAR.
Ideas?
Ideas?
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Newbie
Joined: Apr 2019
Posts: 3
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C240
Take it to a benz specialist or the dealer and have them reset the climate system.. well.. after your freon/refridgerant is recharged.. and assumin that there are no leaks.. that could also be a possibility that the EC light is still on.. Finally got my EC off and the AC is up and operational... thank god.. its gonna be a hot summer
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Newbie
Joined: Apr 2019
Posts: 3
Likes: 0
C240
To recap my reply to Scottster77, you can make the AC come on if the problem is not low freon. Just leave the ignition on (with the EC light on) for a few seconds (I usually just put on my seat belt), then turn off the ignition. When you turn on the ignition again, the EC light can be turned off.
