Service manual

SW2 setting
Display detail
Explanation for display
Unit
The black square ( ) indicates a switch position.
51
Code
display
Error postponement code history (2)
of outdoor unit
Postponement code display
Blinking: During postponement
Lighting: Cancellation of postponement
“00” is displayed in case of no postponement.
Code
display
Error postponement code history (3)
of outdoor unit
Postponement code display
Blinking: During postponement
Lighting: Cancellation of postponement
“00” is displayed in case of no postponement.
Code
display
Error code history (3) (Oldest)
Alternate display of abnormal unit
number and code.
When no error history, “0” and “– –“ are displayed by
turns.
1
ON
23456
1
ON
23456
1
ON
23456
1
ON
23456
Error thermistor display
When there is no error thermistor,
“–“ is displayed.
Code
display
Operation frequency on error occurring
0 – 255
0 – 255
(When it is 100Hz or more, hundreds digit, tens digit
and ones digit are displayed by turns.)
(Example) When 125Hz;
0.5 secs. 0.5secs. 2 secs.
1
ON
23456
Hz
Fan step on error occurring
0 – 10
0 – 10
1
ON
23456
Step
25
1
DC bus voltage
180 – 370
180~370
(When it is 100V or more, hundreds digit, tens
digit and ones digit are displayed by turns.)
V
1
ON
23456
3: Liquid pipe temperature (TH3)
4: Discharge pipe thermistor (TH4)
6: 2-phase pipe thermistor (TH6)
7: Ambient temp. thermistor (TH7)
8: Heatsink thermistor (TH8)
34: Comp. surface thermistor (TH34)
OCH525