Fault code F1 can come from a number of different sources and can remain on as long as the machine has power (does not need to be operating). Once a fault is repaired it can be cleared by pressing the Power button. If the fault is still present then it will not
clear. The service manual says: The faults are displayed in the LCD as one of 5 F (fatal) faults or 1 U (user) fault along with the symbol of a spanner. A fatal fault will usually require the assistance of a qualified service person...
Fault Code Description:
The flood switch has been activated for more than six seconds
_ Inlet hose to inlet valve connection loose
_ Inlet valve body leak
_ Damage to the fill or drain hoses
_ Heater plate damage (chipped enamel)
_ Seals/O Rings (pinched, contaminated or poor join)
_ Dispenser (seal, diverter valve or weld leak)
_ Lid area (lid motors not functioning correctly, lid off yoke or foreign object interfering with lid seal)
Fault Code Problem Solving:
1.Question: Is there a F1 on both displays? Yes: Go to Question 2. No: If power fails to the bottom tub it will cause thetop tub to go F1. Test heater plate.
2.Question: Has a flood occurred? (N.B. The flood may have dried up) Yes: Go to Question 3. No: Go to Question 13
3.Is the lid sealing on the tub correctly? Yes: Go to Question 5. No: Go to Question 4
4.Question: Are the lid actuators functioning correctly? Yes: Go to Question 5. No: Check the lid actuators are assembled correctly on the slides and yokes. Check the plugs on the RFI board and the terminals on the lid motors. If the lid actuators look slow replace them.
5.Question: Is the water level in the tub high? Yes: Go to Question 6. No: Go to Question 8
6.Question: Is the water inlet valve leaking? Yes: Replace inlet valve. No: Go to Question 7
7.Question: Is the DishDrawer priming correctly? Yes: Go to Question 12. Go to Question 8
8.Question: Is the spray arm split? Yes: Replace spray arm. No: Go to Question 9
9.Question: Is the spray arm running freely? Yes: Go to Question 10. No: Check the rotor is running freely, clear of foreign objects and fitted correctly. Make sure the wash impeller is not slipping off the rotor shaft.
10.Question: Is water leaking from a split inlet or drain hose? Yes: Replace split inlet or drain hose. No: Go to Question 11
11.Question: Is water leaking around the heater plate 'O' rings? Yes: Replace or refit 'O' rings. No: Go to Question 12
12.Question: Is the drain hose blocked? Yes: Clear drain hose of blockage. No:Go to Question 13
13.Question: Is there condensation or foreign matter around the flood switch PCB? Yes: Clear flood sensor of condensation or foreign matter. No: Go to Question 14
14.After clearing water does the F1 fault code still activate? Yes: Replace Chassis RFI board. No: Go to Question 15
15.Refer to Bulletin DW028 DW025, 028, 031, 040