13-20
TROUBLESHOOTING
SM WNGDCI 2-E.4 GB
13.2.6.3 Advise:
Open the Outdoor unit controller cover only after one minute from power off.
Measure the electrolytic capacitors voltage before farther checking controller.
Additional advises
When disassemble the controller or the front panel, turn off the power supply.
When connecting or disconnecting the connectors on the PCB, hold the whole housing, don’t pull the
wire, there are sharp fringes and sting on shell. Use gloves when disassemble the A/C units.
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