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Are you sure of the model?? flash a U3 the following is from The FP Manual on the DD-603 Model...........
The last two faults are logged into EE memory.
The other U (user) faults have been removed. The old U2 fault, which was the tub forced open during a cycle, has
been removed completely. Instead if the tub is forced open the product simply pauses as if someone had pressed
the start/pause button. The old U3 fault, which indicated a failure to drain i.e. water left in the tub, will not show up a
fault and the DishDrawer will continue through the cycle
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Switch the machine off at the wall power point, press the dishwasher on button to make sure all stored power is removed , switch power on at the wall plug this should reset the computer .
The lock lever on the unit --- that is shaped like a U --- if you have it ---may be bent a little. You can move it to the correct position - usually down a little --and your door will stay closed
Not sure what the actual model number is but usually the F1 error with Fisher and Paykel dishwasher means water has entered the flood switch located at the base. This could be due to leaky hoses or water leaking through the door or lid seal. Wait for a day or two until the water evaporates and try again. Otherwise you will have to dry out the flood switch and then try again. Location of flood switch will depend on your model. For double drawer dishwasher you will have to take the bottom drawer out from the housing and the switch is on the floor of housing. But make sure you take the mains power chord out before touching the insides of dishwasher. Will also need to find the cause of the leak. Other reason for F1 could be loss of power to top dishdrawer if you have double drawer. But in that case the top drawer will have no lights on. The power board is located on the base of housing under bottom drawer. Once again do not touch inside of dishwasher without shutting off mains power.
If you have a double drawer unit then please confirm what is happening with the other drawer. Most likely the base of the dishwasher under the bottom drawer has flooded and brought down the power with it. The power board sits under the bottom drawer. BE CAREFUL NOT TO TOUCH THE DISHWASHER BEFORE SWITCHING OFF THE MAINS POWER SUPPLY TO THE DISHWASHER AS THE CIRCUIT MAY BE LIVE AND GIVE A SHOCK. You will have to take the bottom drawer out and see what is happening under it.
I am assuming the F1 fault is showing on both the drawers.
This is normally due to flood switch at base of dishwasher housing getting set.
This is due to water leakage from the drawers into the base. To clear it you need to turn power off. Take out the bottom drawer and dry the base of housing with towels and hair dryer. The flood switch is mounted on power board at the base.
Put drawer back and turn the power on. The drawer removal is done by taking out 2 plastic plugs one on each side of drawer and taking front cover off. Then pull drawer out and unclamp from rails. Pull out carefully without damaging houses and wiring a the back. Put back in reverse.
The last two faults are logged into EE memory.
The other U (user) faults have been removed. The old U2 fault, which was the tub forced open during a cycle, has
been removed completely. Instead if the tub is forced open the product simply pauses as if someone had pressed
the start/pause button. The old U3 fault, which indicated a failure to drain i.e. water left in the tub, will not show up a
fault and the DishDrawer will continue through the cycle
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