Breakdown Self Diagnosis Function - Panasonic CS-RE18PKR Service Manual

15.3 Breakdown Self Diagnosis Function

15.3.1 Self Diagnosis Function (Three Digits Alphanumeric Code)

Once abnormality has occurred during operation,
the unit will stop its operation, and Timer LEDs blink.

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.

To make a diagnosis
1 Timer LED start 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 by pressing the CHECK button
continuously for 5 seconds or without any
operation the remote control 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.

To display memorized error (Protective
operation) status:
1 Turn power on.
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. The power LED
lights up. If no abnormality is stored in the
memory, three beeps sound will be heard.
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 same diagnosis can be repeated by turning
power on again.

To clear memorized error (Protective operation)
status after repair:
1 Turn power on.
2 Press the AUTO button for 5 seconds (A beep
receiving sound) on the main unit to operate the
unit at Forced Cooling Operation mode.
3 Press the CHECK button on the remote
controller for about 1 second with a pointed
object to transmit signal to main unit. A beep
sound is heard from main unit and the data is
cleared.

Temporary Operation (Depending on breakdown
status)
1 Press the AUTO button (A beep receiving
sound) on the main unit to operate the unit.
(Remote control will become possible.)
2 The unit can temporarily be used until repaired.
Error Code
H23 Cooling
H27, H28 Cooling, Heating
69
Operation Temporary items
Emergency Operation
with limited power