Inspection
1.

Turn the ignition switch ON.

2.

Manually operate the control switch and measure the voltage of the blower motor.

3.

Select the control switch to raise the voltage until high speed.

Specification

Fan Speed

Motor Voltage (V)

Manual Fan Speed

Auto Fan Speed

1

3.4

Max. 4.5

2

4.6

4.5 ~ 5.5

3

5.9

5.5 ~ 6.7

4

7.2

6.7 ~ 7.7

5

8.3

7.7 ~ 8.9

6

9.5

8.9 ~ 10.1

7

11.3

10.1 ~ 11.3

8

B+

* Manual Fan Speed : 3.4V ~ B+

* Auto Fan Speed : 4.0V ~ B+

4.

If the measured voltage is not within specification, substitute with a known-good power mosfet and check for proper operation.

5.

Replace the power mosfet if it is proved that there is a problem with it.

Яндекс.Метрика