JennAir Flush-Mount Code E:08: Water level too low in the pump sump

What E:08 means

The JennAir flush-mount dishwasher for European-size cabinets, for example the JDB9600AW, reports E:08 when the heat pump detects too little water in the pump sump. The machine then operates without heat. Listed reasons are a leaky heat exchanger valve, bowls turned upside down in the tub, or low supply voltage, which is not a defect in the appliance. It appears in service mode only.

Common causes of E:08

Heat exchanger valve leaking
Bowls or cups overturned and catching wash water
Low supply voltage
Low fill because of a water supply restriction

✓ One safe check you can try

1. Check how you loaded the tub; turn cups and bowls so they do not hold water or block spray arms. 2. Make sure the water tap is fully open. 3. Take a minute with the breaker off, then switch it back to on. 4. Run a normal program. If E:08 returns with a properly loaded tub, call us.

! Why to stop there

A leaking heat exchanger valve is inside the machine and cannot be seen from outside.
Voltage problems come from the house wiring and are better checked by an electrician or us with a meter.
Running dry on the pump can damage it.
We find which cause applies and quote it in writing before work.

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

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 F8E4JennAir Dishwasher Code F8E4: Check for water and leaks after installation F8E5JennAir Dishwasher Code F8E5: Fill valve stuck open

E:08E:08 questions

Can the way I load the dishes cause E:08?

Yes. Bowls placed upside down can trap water, leaving less in the sump for the heat pump to sense. Loading them facing down and angled is the first thing to check.

What is low voltage doing here?

The listing says low supply voltage can trigger the message without any appliance defect. If other appliances dim or struggle at the same time, an electrician should look at the home supply.

Is E:08 serious?

It is not an emergency, but the program runs without heat. If loading and voltage are fine, we check the valve and pump and give a written price first.