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Error code reference

Bosch Dishwasher Error Codes: What They Mean and What to Do

When your Bosch dishwasher shows a code, it is pointing at the part of the cycle that failed. This page lists the 28 codes we could confirm in Bosch's own owner's manuals and support articles: what each one means, the checks that are safe to do yourself, and the point where a technician should take over.

Compiled by the Appliance Surgeon team from Bosch documentation · Last checked

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At a glance

Bosch dishwasher codes and what to do

Bosch US 100/300/500/800/Benchmark dishwashers share code meanings; the format depends on generation, not series: older display models (e.g. 100 Series SHE3AR*, SHSM63*, SHP88PZ55N) show E:24-style codes, newer ones (e.g. SHX78CM5N, Benchmark SHX9PCM5N) show four-digit E:61-03-style codes, and some models without a numeric readout (e.g. SHP65CM5N) light or flash all four LEDs. CrystalDry codes (E07, E10, E:21-20, E:21-30) appear only on CrystalDry models, and E:61-60 mainly on models with the PowerControl spray arm.

The code appears on the control-panel display; on newer models the two halves (e.g. E:61 and -03) alternate. Bosch's manuals say to cancel/drain by holding Start about 3 seconds (older) or On/Off about 4 seconds (newer), and for technical faults to cut power at the plug or breaker for at least 2 minutes (Bosch's support site says 30 seconds) before restarting.

CodeMeaningWhat to do
E01Circulation (heat) pump motor circuit fault on control boardNeeds a technician
E02Main control board relay faultNeeds a technician
E04Heater electronics failed the dishwasher's self-testNeeds a technician
E05Wash arm diverter circuit fault on control boardNeeds a technician
E06Door sensor circuit faultNeeds a technician
E07CrystalDry (zeolite) drying fan is defectiveNeeds a technician
E09Fault in the heater built into the circulation pumpNeeds a technician
E10CrystalDry (zeolite) chamber heater faultNeeds a technician
E12Limescale build-up on the heater / heat pumpCheck, then call if it returns
E14Flow meter fault or problem filling with waterNeeds a technician
E15Water detected in the base; leak protection has activatedStop using it
E16Problem with water filling; water may not be enteringCheck, then call if it returns
E18Water flow in is too lowCheck, then call if it returns
E19Detergent dispenser solenoid circuit faultNeeds a technician
E20Fault in the heater built into the circulation pumpNeeds a technician
E21Circulation (heat) pump is blockedNeeds a technician
E22Filters in the tub bottom are blockedUsually a quick fix
E23Drain pump is blocked, clogged or faultyNeeds a technician
E24Dishwasher is not draining properlyCheck, then call if it returns
E25Drain pump blocked, or its cover is loose or missingCheck, then call if it returns
E27Household supply voltage is too lowCheck, then call if it returns
E:21-30CrystalDry air intake opening is blocked by dishesCheck, then call if it returns
E:30-00Water protection system activatedStop using it
E:34-00Water keeps running into the dishwasherStop using it
E:92-10Lower spray arm can't rotateUsually a quick fix
E:61-60Technical fault; Bosch's site ties it to PowerControl spray armNeeds a technician
E:01-10Electronics communication faultNeeds a technician
H:01Not an error: delay start timer is setUsually a quick fix

Safety first. Switch the appliance off at its power button and unplug it or turn off the breaker before you clean a filter or check a hose. If you smell gas, leave the home and call your gas utility from outside. If there is a burning smell, smoke, sparking or water near wiring, stop using it and keep it off until it has been checked.

Code by code

What each Bosch dishwasher code means

E01Circulation (heat) pump motor circuit fault on control board

Needs a technician

Also shown as or same meaning as: E:01, E:01-00

Common causes

  • Pump motor or its control circuit failed

What you can safely check

  • Switch off the dishwasher's breaker for 30 seconds, then restart
  • If the code returns, note it and the model (E-Nr) and book service

Call a technician if: Code returns after one power reset

Source: [1], [2]

E02Main control board relay fault

Needs a technician

Also shown as or same meaning as: E:02, E03, E:03, E:01-03, E:01-07

Common causes

  • Control board relay error

What you can safely check

  • Switch off the dishwasher's breaker for 30 seconds, then restart
  • If the code returns, note it and the model (E-Nr) and book service

Call a technician if: Code returns after one power reset

Source: [1], [2]

E04Heater electronics failed the dishwasher's self-test

Needs a technician

Also shown as or same meaning as: E:04, E:01-05

Common causes

  • Heating control electronics fault

What you can safely check

  • Stop using the dishwasher and note the code
  • Book service; Bosch gives no owner fix for this code

Call a technician if: Always; this needs a technician

Source: [1], [2]

E05Wash arm diverter circuit fault on control board

Needs a technician

Also shown as or same meaning as: E:05, E:01-06

Common causes

  • Diverter motor or its circuit failed

What you can safely check

  • Switch off the dishwasher's breaker for 30 seconds, then restart
  • If the code returns, note it and the model (E-Nr) and book service

Call a technician if: Code returns after one power reset

Source: [1], [2]

E06Door sensor circuit fault

Needs a technician

Also shown as or same meaning as: E:06, E:80-00

Common causes

  • Door switch or its circuit failed

What you can safely check

  • Switch off the dishwasher's breaker for 30 seconds, then restart
  • If the code returns, note it and the model (E-Nr) and book service

Call a technician if: Code returns after one power reset

Source: [1], [2]

E07CrystalDry (zeolite) drying fan is defective

Needs a technician

Also shown as or same meaning as: E:07

Applies to: Models with CrystalDry (zeolite) drying only

Common causes

  • CrystalDry fan motor failed

What you can safely check

  • Switch off the dishwasher's breaker for 30 seconds, then restart
  • If the code returns, note it and the model (E-Nr) and book service

Call a technician if: Code returns after one power reset

Source: [1], [2]

E09Fault in the heater built into the circulation pump

Needs a technician

Also shown as or same meaning as: E:09

Common causes

  • Heat pump heater or its circuit failed

What you can safely check

  • Switch off the dishwasher's breaker for 30 seconds, then restart
  • If the code returns, note it and the model (E-Nr) and book service

Call a technician if: Code returns after one power reset

Source: [1], [2]

E10CrystalDry (zeolite) chamber heater fault

Needs a technician

Also shown as or same meaning as: E:10, E:21-20

Applies to: Models with CrystalDry (zeolite) drying only

Common causes

  • Zeolite heater or its circuit failed

What you can safely check

  • Switch off the dishwasher's breaker for 30 seconds, then restart
  • If the code returns, note it and the model (E-Nr) and book service

Call a technician if: Code returns after one power reset

Source: [1], [2]

E12Limescale build-up on the heater / heat pump

Check, then call if it returns

Also shown as or same meaning as: E:12, E:20-60

Common causes

  • Hard water deposits
  • Water softener not set or out of salt (if equipped)

What you can safely check

  • Run a descaling cycle with a dishwasher descaler as Bosch directs
  • If your model has a softener, keep it filled with dishwasher salt
  • Set the water hardness level per your manual

Call a technician if: Code returns after descaling

Source: [1], [2], [3], [4]

E14Flow meter fault or problem filling with water

Needs a technician

Also shown as or same meaning as: E:14

Common causes

  • Flow meter failure
  • Water fill problem

What you can safely check

  • Confirm the water supply valve under the sink is fully open
  • If the code returns, note it and the model (E-Nr) and book service

Call a technician if: Code shows with water supply on

Source: [1], [2]

E15Water detected in the base; leak protection has activated

Stop using it

Also shown as or same meaning as: E:15, E:31-00

Common causes

  • Leak inside the dishwasher
  • Water collected in the base pan

What you can safely check

  • Turn off the water supply valve to the dishwasher
  • Switch off power at the breaker
  • Wipe up any water on the floor and do not run the dishwasher

Call a technician if: Always; leak protection needs a technician to find the leak

Source: [1], [2], [4], [5], [6]

E16Problem with water filling; water may not be entering

Check, then call if it returns

Also shown as or same meaning as: E:16, E17, E:17, E:33-00

Applies to: E:33-00 grouped here per Bosch's website table only (see notes)

Common causes

  • Kinked or damaged inlet hose
  • Fill system fault

What you can safely check

  • Check the inlet hose under the sink for kinks or damage
  • Make sure the supply valve under the sink is fully open

Call a technician if: Code returns with the valve open and no kinks

Source: [1], [2], [7]

E18Water flow in is too low

Check, then call if it returns

Also shown as or same meaning as: E:18, E:32-00

Common causes

  • Supply valve off or partly closed
  • Kinked inlet hose
  • Low water pressure
  • Clogged inlet filter

What you can safely check

  • Open the water supply valve to the dishwasher fully
  • Check the inlet hose for kinks or damage
  • Restart the cycle after fixing the supply

Call a technician if: Supply is on and unkinked but the code repeats

Source: [1], [2], [4], [8], [9]

E19Detergent dispenser solenoid circuit fault

Needs a technician

Also shown as or same meaning as: E:19, E:69-00

Common causes

  • Dispenser actuator or its circuit failed

What you can safely check

  • Switch off the dishwasher's breaker for 30 seconds, then restart
  • If the code returns, note it and the model (E-Nr) and book service

Call a technician if: Code returns after one power reset

Source: [1], [2]

E20Fault in the heater built into the circulation pump

Needs a technician

Also shown as or same meaning as: E:20, E:20-30, E:60-01

Common causes

  • Heat pump heater or its circuit failed

What you can safely check

  • Switch off the dishwasher's breaker for 30 seconds, then restart
  • If the code returns, note it and the model (E-Nr) and book service

Call a technician if: Code returns after one power reset

Source: [1], [2]

E21Circulation (heat) pump is blocked

Needs a technician

Also shown as or same meaning as: E:21, E:60-02

Common causes

  • Pump jammed or failed

What you can safely check

  • Switch off the dishwasher's breaker for 30 seconds, then restart
  • Clean the filters in the tub bottom, then retry
  • If the code returns, note it and the model (E-Nr) and book service

Call a technician if: Code returns after one power reset

Source: [1], [2]

E22Filters in the tub bottom are blocked

Usually a quick fix

Also shown as or same meaning as: E:22, E-22, E:92-40

Common causes

  • Food debris clogging the filter assembly

What you can safely check

  • Remove the filters from the tub bottom as your manual shows
  • Wash them under running water with mild soap and a soft brush
  • Refit the filters securely and run a cycle

Call a technician if: Code returns with clean, correctly seated filters

Source: [1], [2], [4], [9], [10]

E23Drain pump is blocked, clogged or faulty

Needs a technician

Also shown as or same meaning as: E:23, E:61-01

Common causes

  • Debris in the drain pump
  • Failed drain pump

What you can safely check

  • Clean the filters in the tub bottom
  • If the code returns, note it and the model (E-Nr) and book service

Call a technician if: Code shows again; Bosch directs owners to service

Source: [1], [2], [11]

E24Dishwasher is not draining properly

Check, then call if it returns

Also shown as or same meaning as: E:24, E-24, E:61-03

Common causes

  • Kinked or blocked drain hose
  • Clogged filters
  • New disposal's knockout plug not removed
  • Clogged countertop air gap

What you can safely check

  • Check the drain hose under the sink for kinks
  • Clean the filters in the tub bottom
  • New garbage disposal? Have its dishwasher knockout plug removed
  • If you have a countertop air gap, clear any debris from it

Call a technician if: Water still won't drain after these checks

Source: [1], [2], [4], [6], [9], [12], [13]

E25Drain pump blocked, or its cover is loose or missing

Check, then call if it returns

Also shown as or same meaning as: E:25, E-25, E:61-02

Common causes

  • Glass, seeds or debris jamming the pump
  • Pump cover not clicked in

What you can safely check

  • Switch off power first, then remove the filters
  • Check the drain pump cover under the filters is clicked firmly in place
  • Carefully remove debris and standing water; broken glass may be sharp

Call a technician if: Pump is clear and cover seated but the code repeats

Source: [1], [2], [4], [9], [13], [14]

E27Household supply voltage is too low

Check, then call if it returns

Also shown as or same meaning as: E:27, E:90-01

Common causes

  • Low incoming voltage
  • Electrical installation problem

What you can safely check

  • Reset the dishwasher's breaker for 30 seconds
  • If it repeats, have an electrician check the voltage and circuit

Call a technician if: Electrician confirms normal voltage but code persists

Source: [1], [2], [4], [9], [13]

E:21-30CrystalDry air intake opening is blocked by dishes

Check, then call if it returns

Applies to: Newer CrystalDry models with four-digit codes (e.g. SHX9PCM5N, SHX78CM5N)

Common causes

  • Items placed against the zeolite container intake

What you can safely check

  • Rearrange dishes so nothing covers the CrystalDry intake opening
  • Check your manual for where the intake opening is

Call a technician if: Code repeats with the intake clear (Bosch's site lists a CrystalDry fan fault)

Source: [4], [6]

E:30-00Water protection system activated

Stop using it

Applies to: Newer four-digit-code models (see notes for a website conflict)

Common causes

  • Leak or water-system fault detected

What you can safely check

  • Turn off the water supply valve to the dishwasher
  • Do not run the dishwasher until it is serviced

Call a technician if: Always; call for service

Source: [4], [6]

E:34-00Water keeps running into the dishwasher

Stop using it

Applies to: Newer four-digit-code models (see notes for a website conflict)

Common causes

  • Water inlet not shutting off

What you can safely check

  • Turn off the water supply valve to the dishwasher
  • Switch off power and do not run the dishwasher

Call a technician if: Always; call for service

Source: [4], [6]

E:92-10Lower spray arm can't rotate

Usually a quick fix

Applies to: Newer four-digit-code models

Common causes

  • Dishes or utensils blocking the lower arm
  • Spray arm not fitted correctly

What you can safely check

  • Rearrange items so the lower spray arm spins freely
  • Check the lower spray arm is seated correctly

Call a technician if: Arm spins freely by hand but the code repeats

Source: [4], [6]

E:61-60Technical fault; Bosch's site ties it to PowerControl spray arm

Needs a technician

Applies to: Newer models, mainly those with PowerControl lower spray arm

Common causes

  • Lower spray arm position not found
  • Control fault

What you can safely check

  • Make sure nothing blocks the lower spray arm
  • If the code returns, note it and the model (E-Nr) and book service

Call a technician if: Always if it repeats

Source: [1], [2], [4], [6]

E:01-10Electronics communication fault

Needs a technician

Also shown as or same meaning as: E0110

Applies to: Newer four-digit-code models

Common causes

  • Internal electronics miscommunication

What you can safely check

  • Switch off the dishwasher's breaker for 30 seconds, then restart
  • If the code returns, note it and the model (E-Nr) and book service

Call a technician if: Code returns after one power reset

Source: [1], [2]

H:01Not an error: delay start timer is set

Usually a quick fix

Also shown as or same meaning as: H01, h:01

Common causes

  • Delay start (start time) menu was selected

What you can safely check

  • Use the delay buttons to step the timer back to h:00
  • Then start the cycle normally

Call a technician if: Not needed

Source: [1]

Still showing the code?

When to call a technician

If a code comes back after the safe checks, or the table says it needs a technician, the fault is usually a sensor, valve, pump, motor or control board, and diagnosing it means opening the dishwasher. Our technicians repair Bosch appliances across Washington, DC, Northern Virginia and Maryland, seven days a week until 10 PM. Tell us the code when you book and we bring the parts that code usually points to.

Book Bosch dishwasher repair $75 diagnostic, credited toward the repair.

Sources

Where these meanings come from

Every code on this page was checked against Bosch's own documentation: owner's manuals, use and care guides, support articles or Bosch technical sheets. Codes we could only find on third-party sites are left out. Meanings are paraphrased; your model's manual is the final word.

  1. Dishwasher Error Codes (owner support table) — BSH Home Appliances (Bosch US). www.bosch-home.com
  2. Bosch Dishwasher Error Codes: Troubleshooting Guide — BSH Home Appliances (Bosch US). www.bosch-home.com
  3. E12 Bosch Dishwasher Error Code — BSH Home Appliances (Bosch US). www.bosch-home.com
  4. Use and Care Manual, Dishwasher SHX9PCM5N Benchmark (9001635109 A) — BSH Home Appliances (Bosch). media3.bosch-home.com
  5. E15 Bosch Dishwasher Error Code — BSH Home Appliances (Bosch US). www.bosch-home.com
  6. Use and Care Manual, Dishwasher SHX78CM5N (Bosch document, retailer-hosted copy) — BSH Home Appliances (Bosch). pdf.lowes.com
  7. E16 and E17 Bosch Dishwasher Error Codes — BSH Home Appliances (Bosch US). www.bosch-home.com
  8. E18 Bosch Dishwasher Error Code — BSH Home Appliances (Bosch US). www.bosch-home.com
  9. Operating Instructions, Dishwasher SHSM63*, SHS863*, SHS843*, SHVM63*, SHV863* (9001411708 C) — BSH Home Appliances (Bosch). media3.bosch-home.com
  10. E22 Bosch Dishwasher Error Code — BSH Home Appliances (Bosch US). www.bosch-home.com
  11. E23 Bosch Dishwasher Error Code — BSH Home Appliances (Bosch US). www.bosch-home.com
  12. Bosch Dishwasher Error Code E24: How to Fix & Reset — BSH Home Appliances (Bosch US). www.bosch-home.com
  13. Operating Instructions, Dishwasher SHE3AR* 100 Series (9001490752 A) — BSH Home Appliances (Bosch). media3.bosch-home.com
  14. E25 Bosch Dishwasher Error Code — BSH Home Appliances (Bosch US). www.bosch-home.com
  15. Operating Instructions, Dishwasher SHP88PZ55N, SHV88PZ53N, SHX88PZ55N, SHXM63WS5N (9001411683 A) — BSH Home Appliances (Bosch). media3.bosch-home.com
  16. Use and Care Manual, Dishwasher SHP65CM5N (9001638568 B) — BSH Home Appliances (Bosch). media3.bosch-home.com

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