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)?
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