3 | Components
Service manual
126
EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
ESIE20-06A – 2021.03
a Screw
b Backup heater thermal protector bracket
c Backup heater thermal protector
2 Pull the backup heater thermal protector and bracket slightly to the front so
the wire terminals (at the back of the thermal protector) are reachable.
3 Disconnect the wires from the backup heater thermal protector.
4 Measure the resistance between the backup heater thermal protector
terminals 11‑12 and 31‑32. All contacts MUST be closed.
Are all contacts closed? Action
Yes Backup heater thermal protector is OK.
Return to the troubleshooting of the
specific error and continue with the
next procedure.
No Replace the backup heater thermal
protector, see "Repair
procedures"[4126].
Repair procedures
To remove the backup heater thermal protector
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
1 Remove the required plate work, see "3.17Plate work"[4230].
2 Remove the backup heater thermal protector sensor from the backup heater.
3 Guid the backup heater thermal protector sensor and wiring through the
grommet inside the switch box.