Service manual

3) Error Indications and Corrective Actions

4) Self-Test Program and Execution Procedure

Error (failure)

P10 connector out of position

Room temperature thermistor blowout

Check the P10 connection.

Check the room temperature and humidity sensor

board.

Corrective action

Room temperature thermistor short

Room temperature and humidity

sensor board failure

P11 connector out of position

Tube temperature thermistor blowout

Check the P11 connection.

Check the tube temperature thermistor.

Tube temperature thermistor short

Tube temperature sensor failure

Microprocessor failure

RAM error

Replace the main board.

Frequency determination error

(When power is on)

Outlet/power check

(Replace the main and power supply boards.)

Watchdog timer error Replace the main board.

Compressor

Indication

(Timer display)

Frequency determination error

(During operation)

Follow the “Does it dehumidify?” in the “Failure

diagnosis flowchart” of P11.

(1) Deactivating 3-minute restart prevent lock

① Start: Press the MODE and HUMIDITY SELECTION buttons together 3 times when the power

is off. Press the POWER button within 2 seconds.

② Functions:

① Deactivates 3-minute restart prevention lock (immediate operation)

② Fan: Fix at rank 6 (max. airflow)

③ Activates compressor

④ Operating mode: Low Temp

⑤ Low temperature is indicated on LCD.

⑥ When E

PROM error is detected, FULL, DRYING INSIDE and AIR PURIFIER LEDs are lit.

③ To end: Turn power off. The solenoid valve functions for 3 seconds.