Daikin EUWL KZW1 Series Service Manual page 93

ESIE-0303
Alarm indicators on The table below describes the alarm indicators on the I/O PCB.
I/O PCB
Symbol
HAP
H1P
H2P
Alarm indications The table below describes the alarm indications on the I/O PCB.
on I/O PCB
Indication
No error
Safety device
Reverse phase
Sensor defective
If more than one alarm is present, the reverse phase has the highest priority.
■
Service information
for alarm
indications
■
Part 3 – Troubleshooting
Green LED
Red LED
Red LED
H1P
OFF
ON
OFF
ON
If the error is solved, H1P and H2P keep their latest status. They can only be reset by switching
OFF/ON the power from the I/O PCB.
If alarm codes fl and h1 are flashing alternately, the alarm is likely to be caused by the reverse
phase protection.
Malfunction Indications and Safeties Overview
Indication
■ Blinking = CPU OK
■ Not blinking = CPU NOK
H2P
OFF
OFF
ON
ON
1
3 3
4
5
3–11