Si20-701_B Troubleshooting by Remote Controller
230
Troubleshooting
Is
protection
high pressure
switch connector
correctly connected
to outdoor unit
PCB?
NO
YES
YES
Connect
correctly.
Wait for 10 minutes after
the unit stops operating,
then check the following.
Caution
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
Is there
continuity in
each protection high
pressure switch?
NO
Replace the high
pressure switch
with no
continuity.
Resistance in
normal operation:
10Ω or less
Is there
continuity in lead
wire?
NO
Replace the lead
wire.
Replace the
outdoor unit
control PCB.
YES
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