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12 Trouble shooting
Problem
E1
E2
E4
Cause
Electrical short on both
temperature sensors and
the PCB
Electrical short of the
temperature sensor, the
copper tube or the PCB
wiring
Indicates that the water
tank is full or the plug may
be incorrectly wired
97
Trouble shooting
Contact an electrician for
repair
Contact an electrician for
repair
Pull out the rubber stopper
that is located at the bot-
tom of the unit, to drain
the water. Check that
the plug has been wired
correctly.
GB
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