Cabin Heater/AC fan unpredictable

[tntbiker]

Cabin heater/ac fan motor only comes on full once in about every fifty or sixty attempts. Low air volume to medium are fine, but no maximum. Temp and direction controls work just fine, just no max air. Anyone? Thanks.

 

[Rcflyer330]

Do you have digital or manual controls?

 

[Bazz270]

Check blower speed resistor if manual

 

[tntbiker]

Do you have digital or manual controls?

manual

 

[tntbiker]

Check blower speed resistor if manual

Thanks...will do that