Daikin EBLA04E V Series Service Manual page 138

4 | Components
To perform an electrical check of the backup heater thermal protector
Service manual
138
draft – 31/05/2022 15:53
a Backup heater thermal protector sensor
b Backup heater
2 Remove the backup heater thermal protector sensor from the backup heater.
3 Submerge the backup heater thermal protector sensor in water.
DANGER: RISK OF BURNING/SCALDING
4 Heat the water above 90°C.
5 Measure the temperature of the water. The backup heater thermal protector
MUST trip at a temperature of approximately 90°C.
Does the backup heater thermal
protector trip at the correct
temperature?
Yes
No
Prerequisite: First perform a mechanical check of the backup heater thermal
protector, see "Checking
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
1 Remove the 2 screws from the backup heater thermal protector bracket.
a b
Action
Perform an electrical check of the
backup heater thermal protector, see
"Checking
Replace the backup heater thermal
protector, see
procedures" [
4
procedures" [ 137].
4
procedures" [ 137]
"Repair
4 139].
EBLA04~08E + EDLA04~08E
Daikin Altherma 3 M
ESIE22-09 – 2022.05