Thread: W126 Climate Control - only hot in all modes
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Old 04-06-2007, 10:24 AM
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Secret Squirrel Secret Squirrel is offline
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Join Date: Mar 2005
Location: Commerce City, CO
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Checked the aux pump via the climate control wiring harness pins as shown on Programa's tech support page.

According to their specs:
Resistance should be greater than 6 Ohms. Mine is 4.6.
Current should be less than 1.5 amps. Mine is .75.

Can the resistance cause problems with the pushbutton unit, or should one only be worried about the current?
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(2) 1988 300 SEL W126
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