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troubleshooting guide
Repairs should only be carried out by a qualified technician in
strict accordance with current local and national safety regula-
tions. Unauthorised or incorrect repairs could cause personal
injury or damage to the unit.
fault code
Codes
Possible Causes
Water tap is not turned
on.
Low water pressure
(<0.04MPa)
E1
Flow meter is broken.
The wire terminals which
connect the flow meter
are loose.
The temperature sensor
is broken.
Heater element is bro-
ken.
The wire terminal con-
nected to the heater is
E3, E6,
loose.
E7
The wire terminal con-
nected to the tempera-
ture sensor is broken.
The wire terminal con-
nected to the tempera-
ture sensor is short cir-
cuited or open circuited.
The tank is leaking.
The hose is leaking.
E4
The float switch is broken
or PCB is faulty.
GB-30
Remedy
Turn on the water tap.
Turn on the water tap and
ensure full opening posi-
tion.
•
Disconnect from the
mains.
•
Disconnect the water
inlet.
•
Call a qualified techni-
cian.
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