89-03" - Plate Heat Exchanger Warning During Defrost - Daikin EDLQO5CAV3 Service Manual

ESIE15-08B | Part 2. Troubleshooting
2.65. "89-03" – Plate heat exchanger warning during defrost
Trigger
Te is too low during defrost.
Warning might result to 89-01 error if it
occurs 3 times.
R2T measures < 6°C during defrost.
Possible cause
Faulty outlet backup heater thermistor.
Page 48
Daikin Altherma Monobloc CA
Effect
Defrost cycle is interrupted but unit will
continue operation.
Units stops after guard timer of compres-
sor.
Check
Check outlet backup heater thermistor.
2. Error code based troubleshooting
Reset
Auto-reset when problem is solved.
PHE outlet temperature increases, auto-
matic restart.
Corrective action
Replace outlet backup heater thermistor
when required (see page 124).
19/07/16