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Error code · Dishwasher

Not enough water at the heat pump – Bosch Dishwasher E:08

E:08 tells you the heat pump sees less water around its heater than a wash requires. Bosch guards against that because a partly exposed element can overheat. All the listed causes keep water out of the…

Medium · inspection needed
Code
E:08
Appliance
Dishwasher
Brand
Bosch
Warranty
30-day workmanship

What E:08 means

E:08 tells you the heat pump sees less water around its heater than a wash requires. Bosch guards against that because a partly exposed element can overheat. All the listed causes keep water out of the sump: a weeping heat exchanger valve, a leak somewhere else, a pinched or dripping fill hose, or cookware turned face up in the racks, which pools the fill water above the tub floor.

Common causes of E:08

  • Bowls, pots or mugs loaded facing up and catching the fill water
  • Fill hose pinched or dripping
  • Heat exchanger valve, or another joint in the wash circuit, leaking
✓ One safe check you can try

1. Unplug the dishwasher before reaching behind it. 2. Pull out the lower rack and reload so bowls, mugs and pans face down. 3. Look behind the machine for a kink where the inlet hose bends into the cabinet. 4. Check the floor for dampness, then restore power and run a short program.

! Why to stop there
  • A leak inside the wash circuit can soak the cabinet floor before anything shows on the front.
  • Handling a heat pump that has run low on water is risky, because the element may still be hot.
  • Chasing a hose kink and missing a valve leak means paying twice for the same diagnosis.
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

E:08E:08 questions
Could just my loading style cause E:08?

Yes, Bosch lists upturned cookware as a genuine cause. If the code appears only with big pots in the bottom rack, reloading is a free test before any repair is considered.

Is a wet cabinet floor a reason to stop using it?

Yes. Turn the dishwasher off, close the supply valve under the sink, and dry the area. Water under the machine can reach wiring and flooring and is worth treating promptly.

How do you find a small leak?

We run a cycle, watch the base and the connections, and check the inlet and the heat exchanger valve. Finding the source before quoting means the written price covers the right repair.

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Still seeing E:08?

A technician diagnoses it on site and gives you the price in writing before any work starts.

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