Inspection
1.

Ignition "ON"

2.

Manually operate the control switch and measure the voltage of blower motor between pin 1 and 2.

3.

Select the control switch to raise voltage until high speed.

Specification

Fan

Motor Voltage

Manual

First speed

3.8 ±0.5V

Second speed

4.9 ±0.5V

Third speed

6.0 ±0.5V

Fourth speed

7.1 ±0.5V

Fifth speed

8.3 ±0.5V

Sixth speed

9.4 ±0.5V

Seventh speed

10.5 ±0.5V

eighth speed

Battary

*AUTO COOLING: Auto speed (4.5V~B+)

*AUTO HEATING: Auto speed (4.5V~10.5V)

4.

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

5.

If the problem is corrected, replace the power mosfet.

Яндекс.Метрика