'Thought so.

How can I isolate only the compressor?

Wilton

----- Original Message ----- From: "Dan Penoff via Mercedes" <mercedes@okiebenz.com>
To: "Mercedes Discussion List" <mercedes@okiebenz.com>
Cc: "Dan Penoff" <d...@penoff.com>
Sent: Friday, July 17, 2015 1:32 PM
Subject: Re: [MBZ] Blown fuse


Nothing.

If you short the terminals on the pressure switch the system would turn on *if* the charge or pressure was low. Otherwise, disconnecting it would have no effect.

I guess a pressure switch could fail grounded, but I've never heard of that happening.

Dan

Sent from my iPad

On Jul 17, 2015, at 1:21 PM, WILTON via Mercedes <mercedes@okiebenz.com> wrote:

What would unplugging the wire on the pressure switch on the dryer isolate?

BTW, 'replaced KLIMA coupla years ago.

Wilton

----- Original Message ----- From: "Max Dillon via Mercedes" <mercedes@okiebenz.com>
To: "Mercedes Discussion List" <mercedes@okiebenz.com>
Cc: "Max Dillon" <dillonm...@gmail.com>
Sent: Friday, July 17, 2015 11:45 AM
Subject: Re: [MBZ] Blown fuse


Wilton,

I know that pulling the KLIMA relay will disable the AC compressor, that is located right behind the battery and fairly easy to get to, but may be pretty tight in the socket. A firm grip and gentle working while pulling up should free it. I don't know if a failing push-button unit would still blow the fuse if the KLIMA relay were removed.

Pulling the plug on the top of the compressor would definitely isolate it, but that would also remove the compressor speed signal, which means the KLIMA relay would interrupt the power to the compressor clutch.

A common cause of trouble in the AC compressor controls is a failing clutch that draws too much current. I'll have to search for a bit to find the normal amperage. I'd measure that current next if I were you, or is the test a resistance test? Need to start digging...
--
Max Dillon
Charleston SC
'87 300TD
'95 E300

On July 17, 2015 11:22:19 AM EDT, WILTON via Mercedes <mercedes@okiebenz.com> wrote:
Fan turns freely.


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