- Appliances
- Dishwashers
E09
Bosch dishwasher E09: heat pump heater fault
Evidence linked to this decision
View source: Bosch USA dishwasher error codesRisk level
High
Professional inspection is recommended.
Urgency
High
Quick answer
E09 identifies an internal heater fault in the dishwasher heat pump. A single 30-second power reset is the only supported user action before service.
Safety first
Stop and check this first
- Do not remove panels or attempt to replace the heat-pump heater without qualified service.
Safe checks you can perform
- Reset power once
Leave these tasks to a qualified professional
- Do not attempt this professional task: Diagnose the heat-pump heater circuit
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Diagnose the heat-pump heater circuit
What they doA qualified Bosch technician should diagnose and repair the internal heater fault.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Reset power once
Turn the dishwasher circuit breaker off for 30 seconds then restore power. If E09 returns stop troubleshooting.
Do not open the appliance or access the heat pump.
Evidence: Bosch USA dishwasher error codes
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Virtual technician
Does E09 still appear after these checks?
This guided flow uses the exact code and your answers to choose a test, an expected result and the next branch.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Appliances
- Brand
- Bosch
- Product type
- Dishwashers
Known code variants
- AEG freezer error E09
- AEG fridge freezer code E09
- Avanttia NG E09
- Balay dishwasher E09
- Balay E09
- Bosch E09
- caldera Domusa E09
- code erreur E09 lave-vaisselle Siemens
- codice E09 Siemens
- codigo E09 frigorifico combi AEG
- código E09 Siemens
- combi Electrolux E09 congelador
- Domusa boiler E09
- Domusa E 09
- Domusa E09 error
- Domusa fallo de circulación de agua
- Domusa water circulation failure
- E-09
- E09 lavavajillas Balay
- E09 Siemens dishwasher
- E9
- Electrolux E09 freezer not cold
- Electrolux fridge error E09
- Electrolux fridge freezer E09
- Electrolux frigorífico E09
- erreur E09 Siemens
- Error E09 Balay
- error E09 congelador AEG
- Error E09 Domusa
- error E09 frigorífico Electrolux
- error E09 lavavajillas Siemens
- errore E09 lavastoviglie Siemens
- Fehlercode E09 Siemens
- Siemens dishwasher E09
- Siemens E09
- Siemens Geschirrspüler Fehler E09
What it means
Bosch describes E09 as an internal heat-pump heater fault. Internal inspection or part replacement is reserved for a qualified technician.
Warnings and stop conditions
- Highsource verified
Do not remove panels or attempt to replace the heat-pump heater without qualified service.
Evidence: Bosch USA dishwasher error codes
Symptoms and causes
Probable causes · in order
- Internal heat-pump heater faultConfirmed
Bosch identifies the failed area but does not provide a user repair procedure.
Evidence: Bosch USA dishwasher error codes
Sources and technical references
- 1
Bosch USA dishwasher error codes
Bosch · official_doc
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