Tuesday, March 15, 2016

Panasonic Fully Automatic Washing Machine – Panasonic NA-F78B2 - NA-F80B2 - NA-F90B2 - NA-F1002B - error codes – troubleshooting – Disassembling - Wiring diagram - washing machine repair and service

Category: Washing Machine Repair and Service 

Contents of this article 

  • Error codes cause and solution 
  • Troubleshooting 
  • Disassembling 




Panasonic NA-F78B2 - NA-F80B2 - NA-F90B2 - NA-F1002B

Error codes and causes 
Error U11
Check if abnormalities listed below are seen in the external water hose.
Is the hose connected?
Is it clogged with lint?
Is it crushed?
Is the tip soaked in water?
Is a part of hose at a height of over 10 cm midway?
Is the extension hose longer than 3 m?
Is the hose being used too small?
Restart with opening and closing the lid.
Error U12
Check if the lid is opened.
Close the lid.
Error U13
Is the washing machine is an unsteady position, or is it on an inclined floor surface?
Is the laundry unevenly distributed in the tub?
Arrange the laundry evenly in the tub, then close the lid.
Error U14
Check if you have forgotten to connect the water hose and to turn on the faucet.
Is the water supply cut off?
Error U99
Check if lid is open when draining operation of the [CHILD LOCK] program is ON.
Error H01
In case of H displays such as “H01”, with no buzzer sounds pull out the power plug, and contact your dealer for service.
TROUBLESHOOTING
The water is drained even filled by a bucket
When the laundry amount is large at the HIGH water level, the machine sometimes fills automatically. When level goes down, the machine fills automatically.
The water level is too high for the amount of laundry being washed.
When the laundry is already soaked with water before the wash is started, or if there is water in the tub before the wash is started, the water level will sometimes be higher.
The water level is too low for the amount of laundry being washed.
With light laundry made of synthetic or blended fabric, the water level will sometimes be lower.
Midway during spinning, the operation suddenly changes to rinsing.
When the laundry is unbalanced during spin, rinsing and automatic correction of unbalanced laundry will begin. Later spinning will return to normal condition.
Water does not flow through the lint filter. Double Cascade does not operate.
When the water level is set to very low, water sometimes will not flow through the lint filter. Double Cascade does not operate when these setting have been selected.
The water is drained even filled by a bucket
Do not leave more than 15 seconds while powered on. Fill the water while powered off or after pushing the start button.
During draining, the laundry and the spinner rotates with irregular movements.
To suppress soap suds build-up, the washing tub turns slowly and quickly.
The buttons do not work.
Only the [WATER LEVEL] button is available after the machine begins washing.
To change the setting, press the [START/HOLD] button or press the [POWER OFF/ON] button and reconfigure the setting.
If you start with the rinse cycle, the tub is not filled with water.
When there is water in the tub, the operation starts with the draining. After spin cycle is fi nished, the tub will be filled with water.
Washing machine does not run at all.
Check if there is power failure.
Check if the power fuse has blown out or the breaker is actuated.
Check if the power plug is plugged in thoroughly.
Check if the “power switch” has been pressed.
Has the water faucet been turned on?
Check if the [START/HOLD] button has been pressed.
Has the machine been programmed under [RESERVE] timer?
Machine begins filling water in the middle of the wash.
When the laundry amount is large at the HIGH water level, the machine sometimes fills automatically. When level goes down, the machine fills automatically.
Water is not supplied.
Check if the water faucet is turned on.
Is the water supply cut off?
Check if the connection of the water supply hose is clogged with dirt.
Check if the lid is opened. Close the lid.
Washing operation still continue even though the expected finishing time had passed on Reserve Program.
Washing time will be longer because of laundry unbalance, water feeding and draining condition.
Tub shaking with the sound of water.
This is the sound of the liquid to maintain the balance during spinning.
Water supply failure.
Normally after the water supply failure, the water will become muddy. Detach the water feeding hose and turn on the water faucet to release to due muddy water. Fix water hose and start washing.
Power failure
In this case, [Power On] and [Start-Pause} buttons need to be pressed again after electricity is restored.Then then the machine will resume operation automatically from beginning of the stopeped process
Disassebling the rear cover 
Remove Screws of Back Panel out
Take out by use screwdriver.
Remove Back Panel out
Insert fi ngers through inside of Back Panel
Pull it back a little for Hooks at upside loose
Use the finger for pull end of Hook (Fig. 5) loose from the Base Unit 
After Hook loose 1 side / We can remove it by twist Back Panel a little.
If it is difficult to remove / Have to use the fi nger to pull another side

WIRING DIAGRAM
CLICK ON THE IMAGE TO ZOOM IN