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#1
07-11-2019, 08:21 PM
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climate control switch in 76 mercedes 280c
only one setting works when I rotate the knob on climate ac control. is there a way to test this switch.
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#2
07-11-2019, 09:20 PM
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Clarify. Are you saying only one fan speed works when you engage the switch?
On heat or on A/C? The fan speed has a resistor block (located under the fresh air cowling, if I remember correctly) which controls the actual fan power/speeds. Number one in the attached picture. The dash switch itself activates various legs on the resistor. Number two in the diagram.  Resister looks similar to this one which is for a W126. Can't find a good picture for the /8. 
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“Whatever story you're telling, it will be more interesting if, at the end you add, "and then everything burst into flames.” ― Brian P. Cleary, You Oughta Know By Now Last edited by Mike D; 07-11-2019 at 09:43 PM.
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Linear Mode
