Daikin VRV II RXYQ8MY1K, Service Manual

Page: 152 / 310

Si39-502A Troubleshooting by Remote Controller
Troubleshooting 141
2.3 Self-diagnosis by Wireless Remote Controller
In the Case of
BRC7C Type
BRC7E Type
BRC4C Type If equipment stops due to a malfunction, the operation indicating LED on the light reception
section flashes.
The malfunction code can be determined by following the procedure described below. (The
malfunction code is displayed when an operation error has occurred. In normal condition, the
malfunction code of the last problem is displayed.)
1. Press the INSPECTION/TEST button to select “Inspection.”
The equipment enters the inspection mode. The “Unit” indication lights and the Unit No.
display shows flashing “0” indication.
2. Set the Unit No.
Press the UP or DOWN button and change the Unit No. display until the buzzer (*1) is
generated from the indoor unit.
*1 Number of beeps
3 short beeps :
Conduct all of the following operations.
1 short beep :
Conduct steps 3 and 4.
Continue the operation in step 4 until a buzzer remains ON. The continuous buzzer indicates
that the malfunction code is confirmed.
Continuous beep :
No abnormality.
3. Press the MODE selector button.
The left “0” (upper digit) indication of the malfunction code flashes.
4. Malfunction code upper digit diagnosis
Press the UP or DOWN button and change the malfunction code upper digit until the
malfunction code matching buzzer (*2) is generated.
„
The upper digit of the code changes as shown below when the UP and DOWN buttons are
pressed.
*2 Number of beeps
Continuous beep :
Both upper and lower digits matched. (Malfunction code confirmed)
2 short beeps :
Upper digit matched.
1 short beep :
Lower digit matched.
5. Press the MODE selector button.
The right “0” (lower digit) indication of the malfunction code flashes.
6. Malfunction code lower digit diagnosis
Press the UP or DOWN button and change the malfunction code lower digit until the
continuous malfunction code matching buzzer (*2) is generated.