How do I test my fan speed switch?
OK, these are the test steps:
- Remove the A/C-Heater control panel from the dash and set your multimeter to Ohms mode (Ω).
- With the blower switch knob set to the OFF position.
- With the blower switch knob set to the LO position.
- With the blower switch knob set to the M1 position.
How much does a blower switch cost?
The average cost for blower motor switch replacement is between $127 and $143. Labor costs are estimated between $61 and $77 while parts are priced at $66.
Why does my blower not work at high speeds?
Blower works on slow speeds, but not on high speed. Check for bad fuse or bad high speed relay. Swap the high speed relay with another relay with the same part number. Also, check the fuse for the control side of the high speed relay. Make sure the ground side of the high speed relay is working. Blower works on some speeds but not others
What’s the speed of the blower motor switch?
This battery power is now diverted to terminal 3 of the blower switch harness connector (LT GRN/WHT wire). In tech speak: circuit 2 and 3 is now considered ‘closed’. The end result is that your Ford’s blower motor now runs in M1 speed.
Why does my Chevy Silverado blower motor not run?
If the blower motor runs when all of the terminals were jumped together, it means the circuit between the resistor connector and blower motor is fine as well as the blower’s motor relay, but the blower resistor is bad and needs to be replaced.
Where does the battery go in a blower motor switch?
The BLK/ORG wire is the one that connects to terminal 2 of the blower motor switch. Inside the blower motor switch this battery power goes nowhere. Battery power is available on terminal 2 of the blower switch connector (BLK/ORG wire). This battery power is now diverted to terminal 3 of the blower switch harness connector (LT GRN/WHT wire).