Panasonic CU-2E15GBE User Manual

15.1.1 Relationship between the condition of the air conditioner and pressure and

electric current

Cooling Mode

Heating Mode

Condition of the

air conditioner

Low Pressure

High Pressure

Electric current

during operation

Low Pressure

High Pressure

Electric current

during operation

Insufficient refrigerant

(gas leakage)

Clogged capillary tube or

strainer

Short circuit in the indoor

unit

Heat radiation deficiency

of the outdoor unit

Inefficient compression

• Carry out the measurement of pressure, electric current, and temperature fifteen minutes after an operation is started.

15.2 Breakdown self diagnosis function

15.2.1 Self Diagnosis Function (Three Digits Alphanumeric Code)

• Once abnormality has occurred during operation, the unit will stop its operation, and Timer LED blinks.

• Although Timer LED goes off when power supply is turned off, if the unit is operated under a breakdown

condition, the LED will light up again.

• In operation after breakdown repair, the Timer LED will no more blink. The last error code (abnormality) will be

stored in IC memory.

15.2.1.1

To make a diagnosis

1.  Timer LED starts to blink and the unit automatically stops the operation.
2.  Press the CHECK button on the remote controller continuously for 5 seconds.
3.  “- -” will be displayed on the remote controller display. Note: Display only for “- -”. (No transmitting signal, no

receiving sound and no Power LED blinking.)

4. Press the “TIMER” ▲ or ▼ button on the remote controller. The code “H00” (no abnormality) will be

displayed and signal will be transmitted to the main unit.

5. Every press of the button (up or down) will increase abnormality numbers and transmit abnormality code

signal to the main unit.

6. When the latest abnormality code on the main unit and code transmitted from the remote controller are

matched, power LED will light up for 30 seconds and a beep sound (continuously for 4 seconds) will be
heard. If no codes are matched, power LED will light up for 0.5 seconds and no sound will be heard.

7. The breakdown diagnosis mode will be canceled unless pressing the CHECK button continuously for 5

seconds or operating the unit for 30 seconds.

8. The LED will be off if the unit is turned off or the RESET button on the main unit is pressed.

“Check” button

AUTO

HEAT

COOL

DRY

FAN

SPEED

AIR

SWING

-Ion

PATROL

OFF/ON

TEMP

MODE

FAN SPEED

AIR SWING

QUIET

TIMER

POWERFUL

SET

OFF

CANCEL

SET CHEC

K CLOCK

RESET

Panasonic

INVERTER