6.1.4.3 Door latch error codes
6.1.4.4 Heat pump error codes (heating)
LED display
Digital display
E:06 Sensor error
Door latch sensor not detected,
functional safety error.
Align door latch above sensor
(located inside inner door).
LED display
Digital display
E:08 No load in heat pump
No water in heat pump
Check water supply
E:09 Burn through / safety relay error
Power module controlling relay not
switching / stuck closed
Replace power module
Same LED display
shows for error
codes E:08 – E:13.
E:10 Resistance too high
Heater resistance too high
Replace heat pump
E:11 NTC1 / NTC 2 failure (absolute /
symmetry)
1 2
NTC1 to NTC 2 internal check
failed, functional safety error.
1. Hall Effect sensor at top of door
Replace heat pump
E:12 Heater NTC’s comparison check
failed
Heater NTC’s have different
resistances
2. Door latch on top of tank
Replace heat pump
E:13 Water temperature too high
Boil protect level (75ºC / 167ºF)
exceeded, functional safety error.
Replace heat pump
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