97 S-10 heater control switch problem

[dannyboy2319]

I have a 97 S-10 with a heater control switch that will not work on the highest speed. It is a four position switch and the fan does work on the lower 3 settings. Any suggestions out there???

[BLAZERBOY69]

Originally Posted by dannyboy2319

I have a 97 S-10 with a heater control switch that will not work on the highest speed. It is a four position switch and the fan does work on the lower 3 settings. Any suggestions out there???

I WOULD SUGGEST PULLING THE SWITCH OUT AND CHECKING FOR A LOOSE TERMINAL, OR YOU COULD JUST GO TO A YARD AND SEE IF YOU CAN FIND A NEW(FOR YOU) ONE OFF A WRECK. I DO KNOW THAT THE MANUFACTURERS OF ALL VEHICLES DO NOT SELL JUST THE FOUR POSITION SWITCH, YOU HAVE TO BUY THE WHOLE CLIMATE CONTROL CENTER.

[MT-2500]

High fan is usually run of of a relay.
Check fuses and power to relay.
MT