Daikin R30NUV1 - 3.42 H3 High Pressure Switch System Abnormality

Troubleshooting by Remote Controller Si20-701_B
221
Troubleshooting
Refer to P.464.
NO
Is the stop
valve open?
NO
YES
Open the stop
valve.
Check for the installation
conditions.
CHECK 4
Caution
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
High pressure
is too high.
YES
Correct the high
pressure.
• In cooling
operation: Dirty
outdoor unit
heat exchanger
• In heating
operation: Dirty
indoor unit heat
exchanger
• Excessive
charging of
refrigerant
Replace the
outdoor unit
PCB.
CHECK 4