Diagnostic Of Error
(Through Microcontroller)
Possible Cause
(Ranked by Frequency)
E58
E59
E61
E62
E63
E66
E67
E68
E69
E70
U1
U0
U2
U3
---
---
F20
---
F21
---
Mains connection
L2 no signal
Mains connection
Voltage > 270VAC for 1
second
Mains connection
Voltage < 170VAC for 1
minute
Mains connection
Voltage < 150VAC
Mains calibration
Water system
If it has been a while
since last descaling:
Level detector pin with
low resistance only after
refilling (occurring at least
6 times consecutively)
Water system
If descaling was carried
out recently:
Level detector pin with
low resistance only after
refilling (occurring at least
6 times consecutively)
Water system
If it has been a while
since last descaling:
Pumping off water at
least 3 times within 2
hours
Water system
If descaling was carried
out recently:
Pumping off water at
least 3 times within 2
hours
Water system
If descaling was carried
out recently:
Water is not continuing to
be fed in during steaming
1. No pole conductor connected to L2 clamp.
2. Circuit breaker or fuse in house wiring system activated.
1. Overvoltage in mains power supply.
2. Neutral conductor break in the house wiring system.
3. Mains calibration error (see error code E63).
1. Undervoltage in mains power supply.
2. Mains calibration error (see error code E63).
1. Undervoltage in mains power supply.
2. Mains calibration error (see error code E63).
1. No calibration of mains voltage. Replace processor.
1 . Boiler scaled up.
1. Boiler scaled up.
2. Silicon hose kinked.
1. Boiler scaled up.
2. Inlet valve leaking (valve not tight, limescale fragments in seal,
etc.)
3. There could be foam in the boiler housing (especially after
descaling).
1. Boiler scaled up.
2. Inlet valve leaking (valve not tight, limescale fragments in seal,
etc.)
3. There could be foam in the boiler housing (especially after
descaling).
1. Boiler scaled up.
2. Inlet valve leaking (valve not tight, limescale fragments in seal,
etc.)
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