- 24 -
F3
This fault is monitored
every 6 seconds while the
mains power is connected.
It is not monitored during
diagnostics.
Water sensed
at greater than
80°C
Adjust the
incoming water
temperature
Is the element
on all the
time?
Replace the
electronic
controller
Turn the power
off at the supply
and then retest
Is the element
heating all the
time?
Check the wiring &
connections to the
element and sensor
PCB
Check the
resistance of the
sensor at the PCB.
See chart.
Replace the
electronic
controller
Replace the
heater plate
Repair or replace
the wiring or
connections
YesNo
Not OK OK
Not OK
Is the incoming
water greater
than 80° C?
No Yes
Yes
No