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Re: k2500 with Manual A/C
Quote:
Originally Posted by Elbert
wierd issue...
Bought my K2500 Sub used...noticed that when A/C was on high fan / cold (without recirculation enabled) the the A/C blower fan would increase speed at random times.
Had the circuit board (reheostat) replaced...no change. Turn on A/C normal mode, fan high.. at times the fan will increase in speed purely at random...it does not maintain this speed, it will maybe have a dealy of 10 to 15 min where it slows back down, and then it runs faster for while.
Only guess now is that the fan motor potentially has an issue. Only applies to the front A/C, not to the rear. No issues noted with ALt output.
Anyone experienced this ?
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What year?
Fan speed is controlled with blower switch positions?
But I would make sure blower motor is good and grounded good and has good wiring and plugins and power.
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Remember proper testing gives us the answer to many problems.
MT
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