Fisher & Paykel DD603 User Manual page 23

F4 No temperature increase has been sensed while the element is
Question
1 Does the element heat in
diagnostics?
2 Test the resistance of the
heater element using the
connection on the
controller, is it correct?
3 Is the connection on the
controller okay?
4 Electronic controller
failure?
5 Are the wiring and
connections from the
controller to the element
all okay?
6 Is the resistance of the
heater element correct?
7 Is the resistance of the
temperature sensor
correct?
8 Are the wiring and
connections down to the
temperature sensor okay?
9 Heater element failure?
F9 Electronics failure (EEPROM access error)
Question
1 If the DishDrawer is
isolated from the power
supply for 10 seconds,
does the fault clear?
2 Electronic controller
failure?
turned on
Yes
Go to Question 7
Go to Question 3
Go to Question 4
Replace electronic
controller
Go to Question 6
Go to Question 7
Replace electronic
controller
Go to Question 9
Replace heater plate
Yes
No fault found
Replace electronic
controller
23
No
Go to Question 2
Go to Question 5
Replace or repair
connection
Go to Question 1
Repair or replace
wiring harness or
wiring
connections
Replace heater
plate
Go to Question 8
Replace or repair
wiring harness or
wiring
connections
Go to Question 1
No
Go to Question 2
Go to Question 1