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Components
Service manual
122
EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
ESIE20-06A – 2021.03
1
If the backup heater thermal protector has tripped:
▪
Sufficiently cool the backup heater thermal protector (7 K)
▪
Press the button on the top to reset the backup heater thermal protector
a
b
b
c
d
a
Reset button
b
Screw
c
Backup heater thermal protector
d
Backup heater
2
Loosen and remove the 2 screws and remove the backup heater thermal
protector from the backup heater.
3
Using a hot air gun, heat the backup heater thermal protector above 88°C.
Result:
The backup heater thermal protector MUST trip at a temperature of
82~88°C.
DANGER: RISK OF BURNING/SCALDING
Does the backup heater thermal
protector trip at correct temperature?
Action
Yes
Perform an electrical check of the
backup heater thermal protector, see
No
Replace the backup heater thermal
protector, see
To perform an electrical check of the backup heater thermal protector
Prerequisite:
First perform a mechanical check of the backup heater thermal
protector, see
Prerequisite:
Stop the unit operation via the user interface.
Prerequisite:
Turn OFF the respective circuit breaker.
1
With the backup heater thermal protector NOT activated (temperature below
82°C), measure the resistance between the backup heater thermal protector
wires on terminal X7M: 5‑6.
Result:
The resistance MUST be 0 Ω (backup heater thermal protector
contacts are closed).
Summary of Contents for ALTHERMA
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