How to disassemble the blower
14
4) Measure the MOSFET in the PCBA (Step 2)
a) Keep the multimeter function setting at
“Diode measuring”.
b) Pierce black pen pin of the multimeter into
the sealing glue and force the pin
contacting onto one side of the fuse.
c) Contact the red pen pin to the three
connectors separately and measure the
voltage.
d) If the LCD displays 0.45~0.55V for each
measurement, go to the next testing step,
otherwise means the PCBA is broken.
Follow the procedure “How to replace the
PCBA” to replace a new PCBA.
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