89" Water Heat Exchanger Frozen - Daikin ESIE13-02 Service Manual

ESIE13-02

"89" Water Heat Exchanger Frozen

3.2
89
User interface
display
Method of The freeze-up protection control (operation halt) is activated during cooling operation according to the
malfunction temperature detected by the hydro-box heat exchanger thermistor.
detection
Malfunction Freeze-up protection:
decision conditions When the hydro-box heat exchanger temperature is below 0°C during cooling operation.
Supposed causes


Troubleshooting
See also "Check No.4 - Resistance Conversion Table (Ambient, Coil, Fin)" on page 153.
Caution Be sure to turn off power switch before connecting or disconnecting connector, otherwise parts may
be damaged.
Detection error due to faulty hydro-box heat exchanger thermistor.
Detection error due to faulty hydro-box PCB.
Check No. 04
Hydro-box heat exchanger
thermistor check
Is it
conform to the thermistor
characteristic
chart?
NO
YES
95
Error Codes: Hydro-box
Replace the hydro-box PCB.
Replace the thermistor (replace the
hydro-box PCB).
Part 4 – Troubleshooting
4
3
4 4
5