Error code reference

Ariston Oven Error Code ER04

Unable to unlock the door (door lock mechanism failure).

SourceAriston Experience Touch FZ100 - Service Manual (2004)p. 16

Diagnostic procedure

The full ER04 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

First diagnostic step

Check the door lock circuit and mechanism; if faulty, replace door lock device; then replace power supply board.

SourceAriston Experience Touch FZ100 - Service Manual (2004)p. 16

Unlock with pass

More steps, wiring diagram references, and verified part numbers

Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.

Unlock ER04 procedure $9.95

Or subscribe: $29/month for all codes plus Max diagnostics, with 70 Max messages a day. Plus applicable tax.

Where this code is documented

2 manuals in the MyPros+ library document this code for Ariston oven.

Models covered by the manuals that document this code

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

The full ER04 procedure

Where this code is documented

Models covered by the manuals that document this code

Related Ariston oven error codes