Johnson JWAS12EINT Manuel D'instructions page 94

ERROR CODES
If there is a malfunction, the dishwasher will display error codes to
identify these:
Codes
E1
Longer inlet time.
Not reaching required
E3
temperature.
E4
Overflow.
Failure of communi-
cation between main
Ed
PCB with display PCB.
WARNING
If overflow occurs, turn off the main water supply before

calling a service.
 If there is water in the base pan because of an overfill or small
leak, the water should be removed before restarting the
dishwasher.
 If there is an error code that cannot be solved, please request
professional assistance.
Meanings
Possible Causes
Faucets is not opened, or water
intake is restricted, or water
pressure is too low.
Malfunction of heating element.
Some element of dishwasher
leaks.
Open circuit or break wiring for
the communication.
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