JennAir Flush-Mount Code E:03: Auxiliary drying relay defect

What E:03 means

The JennAir flush-mount dishwasher for European cabinets, for example the JDB9600AW, displays E:03 when the power module has an internal problem with the relay for the auxiliary heater. The washing part still runs, but the auxiliary drying system does not operate. Expect plates that come out damp at the end of the cycle and E:03 on the display. The remaining program steps are not affected.

Common causes of E:03

Working relay for the auxiliary heater defective
Power module needing replacement

✓ One safe check you can try

1. Try a one-minute power reset at the breaker. 2. Prop the door open a hand's width after a program to let moisture escape. 3. Run another program to see if E:03 returns. 4. If it does, you can keep using the machine for washing, but call us for the module. Never open the control area yourself.

! Why to stop there

The relay lives on the power module and cannot be tested without opening the control area.
Powered-up testing is a shock risk.
Dishes left damp can leave spots and a musty smell in the tub.
We quote the module in writing and fit it with a 30-day warranty.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

→Same appliance

Other Dishwasher codes

F8E4JennAir Dishwasher Code F8E4: Check for water and leaks after installation F8E5JennAir Dishwasher Code F8E5: Fill valve stuck open F9E1JennAir Dishwasher Code F9E1: Long drain time F9E2JennAir Dishwasher Code F9E2: Drain motor error FAE4 or F10E4JennAir Dishwasher Code FAE4 or F10E4: Diverter valve error FAE5 or F10E5JennAir Dishwasher Code FAE5 or F10E5: Diverter leak H2OJennAir Dishwasher Code H2O: Not detecting water Sanitize Light FlashingJennAir Dishwasher Message "Sanitize Light Flashing": Sanitize Temperature Not Met

E:03E:03 questions

What is the auxiliary drying system?

It is an extra heating step that helps dry dishes after the final rinse. When its relay is defective, the machine skips that step and reports E:03.

Is the machine unsafe to use?

The listed result is only that it operates without the auxiliary drying. Washing still works. Still, an electrical module problem is best checked by a technician soon.

Will opening the door help dry dishes?

It helps a little. Open the door slightly once the program ends and the steam has settled. Wipe any water from glass and plastic before putting things away.