HVAC Fan speed wild/ inop

[NOMARQUIS]

Ok, my heater/ac fan seems to come and go as it pleases. If I have the unit on, I can't control the fan speed. It will always work on the highest setting, but if I set the fan anywhere else on the dial, the fan usually wont work, or it works half-a--. I notice it's worse when the weather is warm outside. If the HVAC is set to fan or auto, it works this way. Sad part is that this is intermittant, also the dealership just "fixed" this problem by throwing a new head unit at the car. The head unit was 600 plus dollars, but my esp covered it and cost me 100. Can anybody help me point the wrenches in the correct direction so they dont charge me another series of deductables and I still have this problem? Doe the car have a fan relay or resistor? Can I pull codes from the HVAC head?

Thank you.

Eric

[fastblackmerc]

Ok, my heater/ac fan seems to come and go as it pleases. If I have the unit on, I can't control the fan speed. It will always work on the highest setting, but if I set the fan anywhere else on the dial, the fan usually wont work, or it works half-a--. I notice it's worse when the weather is warm outside. If the HVAC is set to fan or auto, it works this way. Sad part is that this is intermittant, also the dealership just "fixed" this problem by throwing a new head unit at the car. The head unit was 600 plus dollars, but my esp covered it and cost me 100. Can anybody help me point the wrenches in the correct direction so they dont charge me another series of deductables and I still have this problem? Doe the car have a fan relay or resistor? Can I pull codes from the HVAC head?

Thank you.

Eric

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