Troubleshooting By Indication On The Remote Controller - Daikin ALTHERMA HT ERSQ 011 AA Service Manual

ESIE09-08A
6.6

Troubleshooting by Indication on the Remote Controller

AA
Remote control
display
Subcode 0
Applicable models All indoor models
Method of
Malfunction detection is carried out by safety contacts in the heater kit
malfunction
detection
Malfunction
decision conditions
 Heater kit thermal protector (Q2L, activation temperature: 92°C) or thermal fuse (F1T, activation
Supposed causes
 Heater kit connected to benefit kWh rate power supply and wrongly configured
 No heater kit installed
Troubleshooting
Appendix
temperature: 122°C) error
Be sure to turn off power switch before connecting or disconnecting connector,
Caution
otherwise parts may be damaged.
External
NO
backup heater
connected?
YES
Is the
YES
benefit kWh mode in
use?
NO
Has the
YES
thermal protector Q1L
operated?
NO
Has the 5A
YES
T 250V fuse F1U
melted?
NO
Has the
YES
thermal fuse F1T
melted?
External Backup Heater Kit
Set [6-02] to 0
Properly configure the wiring
- Check if the circuit is filled with
water and there is no air inside
- Check if waterflow is possible
- Check the flowswitch, relays and
contactors
- Reset Q1L by pressing
- Check the electrical components
- Replace the fuse
Replace the entire external backup
heater
265