Daikin BRC301B61 - Trouble and Countermeasure; Unit Operation Troubleshooting; Malfunction Code Reference

Operation manual
5
VAM150~2000F
Total Heat Exchanger
HRV (Heat Reclaim Ventilation)
4PW13544-1B
TROUBLE AND COUNTERMEASURE
If your unit does not operate properly, check the following items
If the following occurs, consult your dealer where the unit was purchased
List of malfunction codes of Remote controller of the HRV-system air conditioner
In case of the malfunction with the code in white letters on the black background in the unit still operates.
However, be sure to have it inspected and repaired and as soon as possible.
Conditions Causes Corrective actions
The unit does not operate at all. Check if there is a power failure. After power has been restored, start operation again.
Check if the fuse has blown or breaker has worked. Change the fuse or set the breaker.
Check if the indication of operation control method on
remote controller (BRC301B61) is shown.
This is normal. Operate the unit using the air
conditioner remote control or centralized controller.
(Refer to "Operation" on page 1)
Check if the indication of operation stand by on
remote controller (BRC301B61) is shown.
It indicates the precooling/preheating operation. This
unit is at stop and will start operation after the
precooling/preheating operation is over.
(Refer to "Operation" on page 1)
Amount of discharged air is small and the
discharging sound is high.
Check if the air filter and heat exchange element are
clogged.
Refer to "Maintenance" on page 4.
Amount of discharged air is large and so is the
sound.
Check if the air filter and heat exchange element are
installed.
Refer to "Maintenance" on page 4.
Operation lamp
Inspection
indicator Unit No. Malfunction code Description
On Off Blinking
64 Indoor air thermistor malfunction
On Off Blinking
65 Outdoor air thermistor malfunction
On Off Blinking
6A Dumper-related malfunction
Blinking Blinking Blinking
6A Dumper-related malfunction + thermistor
Blinking Blinking Blinking U5 Transmission error between the unit and remote controller
Off Blinking Off U5 Printed circuit board error or setting error of remote controller
Off Blinking Off U8 Transmission error between main remote controller and sub remote controller
Off Blinking Blinking UA Faulty installation setting
On Blinking On
UC Repeated central address
Blinking Blinking Blinking UE Transmission error between the unit and centralized controller