Troubleshooting by Error Code
SiME332106E
210
Part 6 Service Diagnosis
Reference
5.32 Refrigerant Overcharged
Applicable
Models
All outdoor unit models
Error Code
F6
Method of Error
Detection
Detect overcharged refrigerant according to outdoor air temperature, heat exchanger liquid pipe
temperature, and subcooling liquid pipe temperature during test operation.
Error Decision
Conditions
When the amount of refrigerant, which is calculated using outdoor air temperature, heat
exchanger liquid pipe temperature, and subcooling liquid pipe temperature during test
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
Causes
Refrigerant overcharged
Disconnection of outdoor air thermistor
Disconnection of heat exchanger liquid pipe thermistor
Disconnection of subcooling liquid pipe thermistor
Troubleshooting
CHECK 11
Refer to page 281.
Check for the conditions of
mounting of the temperature
sensors of the outdoor air
thermistor, the heat exchanger
liquid pipe thermistor, and
subcooling liquid pipe thermistor
to the piping.
Disconnect the outdoor air
thermistor, the heat exchanger
liquid pipe thermistor, and
subcooling liquid pipe
thermistor from the outdoor
unit main PCB, and then make
measurement of resistance
using a multimeter.
Normal?
Remedy refrigerant overcharging.
YES
NO
NO
Replace abnormal thermistors,
and then operate the system.
Properly connect the thermistors,
and then operate the system.
YES
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Are the temperature
sensors properly
mounted?
CHECK 11
