Ariston Oven Error Code ER88

ER88 indicates a Key15 fault on the touch control panel of your Ariston oven. It means the control system has detected a malfunction at a specific capacitive touch zone, either due to moisture interference, a missing rubber contact piece, or a failed display board. The oven raises this code to alert you that touch input for that button is not functioning correctly.

ER88 specifically relates to a touch button malfunction on the control panel, not a heating or gas system fault. However, if the faulty key is part of your normal operation sequence, the oven may not respond correctly to your inputs. It is best to resolve the error before relying on the oven for cooking to avoid unintended behavior.

If the fault is only condensation, there is no repair cost at all. If a replacement display board is needed, parts and labor costs can range from roughly $100 to $300 or more depending on your region and the technician's rates. Getting a quote from a qualified appliance repair technician before proceeding is a good way to weigh the repair cost against the oven's overall value.

The first step is straightforward and requires no tools: open the oven door and let any condensation dry out completely, then check if the error clears. If the fault continues, you can inspect the inductive rubber contact pieces behind the control panel for displacement or missing parts. If all contacts are intact and the error persists, replacing the display board is required, which is a task most experienced DIYers can handle with basic disassembly skills.

A power reset may temporarily clear the display, but if the underlying cause is still present, the error will return when the oven is used again. The most effective reset is allowing the touch panel to fully dry if condensation is the cause. A permanent resolution requires addressing the root cause, whether that is repositioning a rubber contact piece or replacing the display board.