Hitachi RAS-25CNH1 - Outdoor Unit Diagnostics; Refrigerating Cycle Check

– 96 –
If checking cannot be
done the first time, wait
for 3 min. as it is (3 min
later re-start), check the
lighting condition of the
self-diagnosis lamp again.
Set to the operation mode and
press the Start /Stop Switch.
Does the operation starts about 1
min or more ? (LD 303 lights, is
mormal)
Ye s
Normal
(3) Check the Refrigerating
cycle.
Check the electrical parts in the condensing unit.
No
Remove the compressor Connecting connector.
Compressor connecting connector
Compressor terminal board and self-diagnosis lamp.
[MODEL RAC-25CNH11]
2. Outdoor unit ( judging between “electrical parts of the condensing unit” and “refrigerating cycle”)