Daikin RWEYQ28PY1 [205/342] Outside unit pc board defect

Daikin RWEYQ30PY1 [205/342] Outside unit pc board defect
Troubleshooting by Indication on the Remote Controller Si30-813
194 Troubleshooting
2.17
E1
Outside Unit: PC Board Defect
Remote
Controller
Display
E1
Applicable
Models
Outside unit
RWEYQ8P, 10P
Method of
Malfunction
Detection
Detect abnormalities by checking communication status of the hard part between the indoor unit
and outside unit.
Malfunction
Decision
Conditions
When communication status of the hard part between the indoor unit and heat source unit is
abnormal
Supposed
Causes
Faulty main PC board
Faulty communication part (photo coupler) on the main PC board
Troubleshooting
Turn off the power supply once
and then turn it on again.
Foreign
particles (electrically
conductive) are attached on
the terminal (X1M) of
the main PC
board.
YES
YES
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Does it return normally?
Remove the foreign particles
(electrically conductive) and
restart operation.
Replace the heat source
main PC board.
Check the following parts and
continue operation
Check noise, etc.
Check whether foreign
particles (electrically
conductive) attach to the terminal
of the main PC board (X1M).
NO
NO

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