Refrigerant Overcharged - Daikin VRV EMERION REYQ-AATJA Service Manual

Troubleshooting by Error Code

3.47 Refrigerant Overcharged

Applicable
All outdoor unit models
Models
F6
Error Code
Method of Error
Detect overcharged refrigerant according to outdoor air temperature, heat exchanger deicer
Detection temperature, and liquid pipe temperature during check operation.
Error Decision
When the amount of refrigerant, which is calculated using outdoor air temperature, heat exchanger
Conditions deicer temperature, and liquid pipe temperature during check operation, exceeds the regular
charge amount by 30% or more
(If refrigerant is charged slightly over the regular charge amount, F6 may be displayed on the
remote controller.)
Supposed
 Refrigerant overcharged
Causes  Disconnection of outdoor air thermistor
 Disconnection of heat exchanger deicer thermistor
 Disconnection of liquid pipe temperature thermistor
Troubleshooting
Reference
CHECK 11 Refer to page 459.
387
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Check for the conditions of
mounting of the temperature
sensors of the outdoor air
thermistor, the heat exchanger
thermistor, and liquid pipe
thermistor to the piping.
Are the temperature
sensors properly
mounted?
YES
Disconnect the outdoor air
thermistor, the heat exchanger
thermistor, and liquid pipe
thermistor from the outdoor
unit main PCB, and then make
measurement of resistance
using a multimeter.
CHECK 11
Normal?
YES
NO
NO
SiUS372201EB
Properly connect the thermistors,
and then operate the system.
Replace the abnormal thermistors,
and then operate the system.
Remedy refrigerant overcharging.
Part 6 Service Diagnosis