Fisher & Paykel DD601v2 Service Manual page 27

Yes
Replace the
electronic
controller
Check the wiring &
connections to the
element and sensor
Not OK
Repair or replace
the wiring or
connections
No
Is the element
on all the
time?
PCB
OK
Check the
resistance of the
sensor at the PCB.
See chart.
Not OK
Replace the
heater plate
- 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
Is the incoming
water greater
than 80° C?
No
Turn the power
off at the supply
and then retest
Is the element
No heating all the
time?
Adjust the
incoming water
Yes
temperature
Yes
Replace the
electronic
controller