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General TechGood at troubleshooting? Have a non-specific issue? Discuss general tech topics here. IF YOUR QUESTION IS SPECIFIC TO A CERTAIN MODEL, IT DOES NOT GO IN THIS SECTION.
Have a 95 chevy 2500. No high speed on heater. Changed control to another used one. Same problem.....no high speed. Could anything else cause this but the control? Blower motor runs fine on all other speeds.