TROUBLE SHOOTING
Problem
Cause
Trouble shooting
E1
Electrical short on both
temperature sensors and the
PCB
Contact an electrician for
repair
E2
Electrical short of the
temperature sensor, the copper
tube or the PCB wiring
Contact an electrician for
repair
E4
Indicates that the water
tank is full or the plug may
be incorrectly wired
Drain the water. Check that
the plug has been wired
correctly.
38