Panasonic S-1821PF3H Operating Instructions Manual page 14

Troubleshooting
When...
■ Conducting a seasonal inspection after extended period of non-use
• Check that there is no obstruction around the air inlets and outlet vents.
• These units are mounted inside the ceiling. It uses external air intake vent and air outlet vent
to operate. Please consult your nearest dealer for seasonal inspection.
• After 15 minutes of operation, it is normal to have the following temperature difference
between the air inlet and outlet vents:
COOL: ≥ 8 °C / 14.4 °F
■ The units will not be used for an extended period
• Activate FAN mode for 2~3 hours to remove any moisture left in the internal parts
thoroughly. This is to prevent mould growth.
• Turn off the power supply and unplug the unit.
NON SERVICEABLE CRITERIA
TURN OFF THE POWER SUPPLY AND UNPLUG THE UNIT. Then consult an authorised
dealer in the following conditions:
• Abnormal noise during operation.
• Water is leaking from the indoor unit.
• The circuit breaker switches off frequently.
• The power cord becomes unnaturally warm.
• The switches or buttons are not functioning properly.
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