The Error Changed, but the Dryer Was Not Repaired
The latch, main board and heater all entered the repair history. The board change introduced E91, and a later new-heater replacement did not solve the complaint.
The parts-and-errors timeline
- The dryer repeatedly indicated that its door was open.
- A door-switch repair attempt included an ignition event, and the complete latch was replaced.
- The original complaint remained and service mode showed E63.
- Heating-circuit resistance and continuity were reported normal.
- Replacing the main board introduced E91.
- A new heater was then installed, but the problem still remained.
The same symptom can have a different cause. This sequence does not identify a universal Electrolux part; it shows why every replacement and code change must stay in the evidence chain.
What the failed replacements ruled against
The replacement heater did not support the theory that a simple heater assembly failure explained the complaint. The discussion also noted that this heater used three parallel windings, so a meaningful check had to account for all of them.
E91 after board replacement kept the UI board, harness, connectors, board compatibility and replacement-part condition open. None was confirmed before the repair was stopped.
Why the case ended without a diagnosis
The technician judged further parts replacement economically impractical. That is a valid field outcome, but it is not a confirmed component diagnosis. For a similar case, preserve the exact model, original and replacement part numbers, connector condition and the error sequence before deciding whether more testing is justified.