Fisher & Paykel DD603(I) - Fault Code Troubleshooting - Electronics and Priming; Troubleshooting Electronics Failure (F9); Troubleshooting Machine Failed to Prime (U1)

(F9) Electronics Failure (EEPROM access error)
Yes No
1 Isolate the power to the DishDrawer® for 10 seconds then retry,
does the fault clear?
»A »2
2 Replace controller »A »A
(U1) Machine failed to prime with water within a given time
Yes No
1 Is the tap turned on? »2 »A
2 Is the spray arm in place? (spray arm my have been refitted since
U1 fault occurred)
»3 »A
3 Activate the water inlet valve in diagnostics. Does any water enter
the machine?
»4 »8
4 Is the impeller on the rotor slipping? »13 »5
5 Is the supply water pressure above 30Kpa / 4.3p.s.i? »6 »7
6 Check the water inlet hoses & valves for an obstruction. »A »A
7 Minimum incoming water pressure for correct DishDrawer®
operation is 30Kpa / 4.3p.s.i
»A »A
8 Is the resistance of the water valve measured at the plug on the
controller ok?
»9 »11
9 Is there 24v dc coming from the controller during the water valve
test?
»6 »10
10 Replace the controller »A »A
11 Is the wiring & edge connections down to the water valve ok? »12 »A
12 Replace the water valve »A »A
13 Replace the rotor »A »A