Hitachi RAS-08PH1 - Outdoor Unit Diagnostics; Compressor Connector Removal

COMMUTATEUR DE MAINTENANCE
LD
303
LD
30
1
LD
30
2
LD
303
L
D
30
2
L
D30
1
H
I
C
IPM
C. I. PRINCIPAL
TEST SWITCH
SELF-CHECK
CONNECTOR(CN30)
COMORESSOR
CONNECTOR(CN1)
Model:
Model:
RAC-08PH1, RAC-10
RAC-14
PH1
PH1
OUTDOOR UNIT
Remove the compressor connector.
If your first attempt
fails, wait 3 minutes
(for the unit to re-
start) and check the
self-diagnosis lamp
status again.
Check outdoor electrical parts.
Check the refrigerating
cycle.
Normal
No
Yes
• Check the drive
circuit (IMP) using
the PRD checker.
• Check the position
sensor circuit.
With the unit set in the operating
state, press the start/stop
button.
Does the unit operate for
approximately 2 seconds (the
LD303 coming on) and then
stop due to a failure of switching
(the lamp blinking 4 times)?
90