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Error code reference

Ariston Oven Error Code ER87

Key14 fault on Touch control

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What the ER87 error code actually means

Your Ariston oven is detecting a problem with one of the touch buttons on its control panel, specifically the button labeled as Key14 in the control system. This can happen because of steam or moisture getting into the control area during cooking. If the problem does not go away after the oven cools and dries out, a part inside the control panel will likely need to be replaced.

Diagnostic procedure

The full ER87 procedure

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1
First diagnostic step
Open door, wait for condensation to dry; if fault persists and all inductive rubber pieces are present, replace display board.
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Most common causes of ER87

Ranked by how often they cause this code
  1. 1Condensation on the touch panel
  2. 2Missing or displaced inductive rubber piece
  3. 3Failed display board
  4. 4Physical damage to the touch panel surface

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Questions people ask about ER87

What does ER87 mean on a Ariston oven?
ER87 indicates a fault at Key14 on the Ariston oven's touch control panel. The control board has detected an abnormal or absent signal from that specific button sensor. This can be caused by moisture, a missing inductive rubber component, or a failed display board. The first step is to open the door and let any condensation dry before assuming a hardware failure.
Is it safe to use my Ariston oven while it shows ER87?
ER87 relates specifically to a touch button malfunction and does not indicate a heating, gas, or electrical safety hazard on its own. However, if the affected Key14 button controls a cooking function you need, the oven may not respond correctly to inputs. It is best to resolve the fault before relying on the oven for normal use.
How much does it cost to repair an Ariston oven showing ER87?
If the fault is only condensation-related, there is no parts cost at all. If the inductive rubber pieces need to be sourced and fitted, costs are typically low. Replacing the display board is the most expensive scenario, with parts and labor combined generally ranging from around $150 to $350 or more depending on the specific model and local labor rates.
Can I fix ER87 on my Ariston oven myself?
If the fault is caused by condensation, you can resolve it yourself simply by opening the oven door and waiting for the moisture to evaporate, then checking whether the code clears. If the error persists, a technician will need to inspect the inductive rubber pieces behind the touch panel and potentially replace the display board, which involves disassembling the control area.
Will resetting the oven clear the ER87 code?
A power reset may temporarily clear the code if the underlying cause is transient, such as condensation that has already evaporated. However, if the inductive rubber component is missing or the display board has failed, the code will return after the reset. A lasting fix requires addressing the physical cause of the Key14 sensor fault.

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