Dishwasher heating and temperature error codes

Use this page when a dishwasher reports heating, temperature, or heat-delay codes. Confirm fill and drain behavior before repeating heated cycles.

15Matching codes
7Brands
1Appliances
2026-07-08Updated

Fast path

Match the exact display text first. Common matches in this cluster include GE Appliances Dishwasher C6, GE Appliances Dishwasher C7, LG Dishwasher F35, LG Dishwasher HE, Samsung Dishwasher 3E.

Searches covered

  • dishwasher heating error code
  • dishwasher temperature code
  • dishwasher heat delay code
  • dishwasher not heating error

How to narrow it down

Use the brand, appliance type, and exact code together. A symptom search can point to the right category, but the model number controls the exact manual steps and access points.

Open the matching code page below for aliases, model-family notes, source links, and the safest check order.

Safe first checks

  1. Confirm the dishwasher fills and drains normally.
  2. Check that the home hot-water supply is normal if the model depends on it.
  3. Power reset once only when the unit is dry and stable.
  4. Avoid repeated heated cycles while the warning is unresolved.
  5. Record whether the code appears during fill, wash, dry, or immediately.

Stop troubleshooting when

  • The dishwasher smells hot, trips a breaker, or underheats repeatedly.
  • The heating code returns on a short test.
  • The next step requires opening a sealed heater or control area.

Related problem hubs

Related troubleshooting guides

FAQ

Which code page should I open first?

Open the page that matches the exact brand, appliance type, and display text. In this cluster, GE Appliances dishwasher C6 is one common starting point.

Can I reset the appliance first?

Use one reset only after visible safety checks are complete. If the same code returns, treat it as an active condition instead of repeating resets.

When should I stop and call service?

The dishwasher smells hot, trips a breaker, or underheats repeatedly.

Matching code guides

15 pages match this search cluster.

All search guides

GE Appliances Dishwasher

C6

Check household hot water temperature and stop if heating issues repeat.

Heating or temperature fault

GE Appliances Dishwasher

C7

Power reset once and request service if C7 returns on a normal cycle.

Heating or temperature fault

LG Dishwasher

F35

Avoid repeated heated drying attempts and arrange service if F35 returns.

Heating or temperature fault

LG Dishwasher

HE

Run one reset and short test only if water fills and drains normally.

Heating or temperature fault

Samsung Dishwasher

3E

Verify the hot water supply is not set too high before running another test.

Heating or temperature fault

Samsung Dishwasher

HC

Switch power off briefly, run a controlled empty test, and stop if HC returns.

Heating or temperature fault

Samsung Dishwasher

HE

Do not repeat heated cycles if HE returns; use service for heater or sensor diagnosis.

Heating or temperature fault

Frigidaire Dishwasher

HO

Confirm the hot water supply is normal; service is likely if heating never recovers.

Heating or temperature fault

Bosch Dishwasher

E01

Reset power at the breaker once; repeated E01 needs Bosch support or service.

Heating or temperature fault

Bosch Dishwasher

E04

Do not keep running heated cycles; contact support if E04 remains.

Heating or temperature fault

Bosch Dishwasher

E09

Reset once; if it returns, stop repeating heated cycles and arrange service.

Heating or temperature fault

Bosch Dishwasher

E10

Avoid repeated heat-dry tests and contact support if E10 returns.

Heating or temperature fault

Bosch Dishwasher

E12

Use the model-approved descaling path and check water-softener salt guidance if equipped.

Heating or temperature fault

Electrolux Dishwasher

HO

Confirm hot water supply and stop if the dishwasher never reaches wash temperature.

Heating or temperature fault

Miele Dishwasher

F24

Avoid repeated heated cycles and contact service if the heating fault returns.

Heating or temperature fault