Daikin FTK Series User Manual

Troubleshooting DAMA-SM-21-001
75 Service Diagnosis
4.16 High Pressure Control in Cooling
Error Code F6
Method of Error
Detection
High-pressure control (operation halt, frequency drop, etc.) is activated in cooling mode if the
temperature sensed by the outdoor heat exchanger thermistor exceeds the limit.
Error Decision
Conditions
 The temperature sensed by the outdoor heat exchanger thermistor rises above A°C (°F).
 The error is cleared when the temperature drops below B°C (°F).
Supposed
Causes
 Installation space not large enough
 Dirty outdoor heat exchanger
 Defective outdoor fan motor
 Defective stop valve
 Defective electronic expansion valve or coil
 Defective outdoor heat exchanger thermistor
 Defective outdoor unit PC
Troubleshooting
A (°C) B (°C) A (°F) B (°F)
09 59.0 52.0 09 138.2 125.6
12 59.0 52.0 12 138.2 125.6
18 60.0 51.0 18 140.0 123.8
24 60.0 51.0 24 140.0 123.8
Replace the outdoor fan
motor.
Reconnect the connector or
fan motor lead wires.
Replace the stop valve.
Replace the outdoor heat
exchanger thermistor.
Replace the outdoor unit
PCB (main PCB).
Replace the electronic
expansion valve or the coil.
Replace the outdoor unit
PCB (main PCB).
Change the installation
location or direction.
Clean the outdoor heat
exchanger.
Check the installation space.
NG
OK
OK
NG
NG
OK
OK
OK
NG
NG
Check No. 19
Check the outdoor fan.
Check No. 18
Check the discharge
pressure.
Check No. 12
Check the electronic
expansion valve.
Check No. 17
Check the installation
condition.
Check No. 01
Check the outdoor heat
exchanger thermistor.
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Caution

Daikin FTK Series Specifications

General

Brand	Daikin
Model	FTK Series
Category	Inverter
Language	English