Skip to main content
Error code reference
Gaggenau Oven Error Code E005
Communication fault display electronics module-no bus connection between 2 modules or protective diode on CM damaged.
SourceGaggenau Steam Oven - Service Manual: BS27X & BS28Xp. 54
Diagnostic procedure
The full E005 procedure
Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.
MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check earth wire on power supply unit for correct contacting. Implement a double mains reset.
SourceGaggenau Steam Oven - Service Manual: BS27X & BS28Xp. 54
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
Unlock E005 procedure $9.95
Or subscribe: $29/month for all codes plus Max diagnostics, with 70 Max messages a day. Plus applicable tax.
75,000+ service documents · 20,000+ error codes · 100+ brands
Get Started$29/month · Cancel anytime · Or $9.95 3-day pass · Plus applicable tax