Daikin SkyAir RZQ200 · 250C7Y1B Service Manual page 173

Diagnosis by Remote Controller
162
Is HAP blinking? NO (Lamp is ON or OFF)
(Outdoor PC board)
YES
Turn OFF the power supply
and then turn it ON.
Remove the No. 3 wire connecting
the indoor and outdoor units and
turn ON the power again.
YES
"U4" is displayed
continuously.
NO
A
Is HAP blinking? YES
(Outdoor PC board)
NO
YES
Is HAP lamp ON?
(Outdoor PC board)
NO (OFF)
CHECK No. 1 (page. 173)
Check the fan motor
connector.
NO
Does the resistance
meet the criteria?
YES
Is HAP blinking? YES
(Outdoor PC board)
NO
SiBE26-701
The outdoor PC board
is normal.
Check for external
factors (noise, etc.).
Replace the outdoor PC
board whose lamp is ON.
Replace the fan motor.
Replace the indoor PC
board.
The power supply system
malfunction or faulty
outdoor PC board
Replace the indoor PC
board.
It is normal.
Check for external
factors (noise, etc.).
Troubleshooting