Re: [DML] Re: interior fans (not radiator fans) intermittent operation

[Farrar <fhudkins@xxxxxxxxx>]

Toby,

This happens at speed 2 as well. (I don't use speed 1.) I don't know how 
to test a relay, but since they are massively expensive from the vendors 
  individually and I don't want to buy a kit, I think I will investigate 
the circuit breaker option first.

I have tried looking in the workshop manual for the location of the 
circuit breakers. Where are they, exactly? If they're in the relay 
compartment, they're not illustrated on the appropriate pages. (M:07:xx)

Thanks for your help!

Farrar Hudkins
#2613 (auto)

Toby Peterson wrote:
> 
> 
> Farrar - This is typically caused by a weak circuit breaker for the
> A/C fan motor. The circuit breaker is located right next to the
> circuit breaker for the radiator fans. The popular fix for this
> condition is to change the circuit breaker out to a larger capacity
> (35 or 40 amps) unit. Does this intermittent operation only happen
> on speeds 3 and 4 (normally the case)? If so, then you should also
> consider replacing or evaluating the relays for those fan speeds.
> Fan speeds 1 and 2 are "directly driven" without relays.

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