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Error code reference

Ariston Oven Error Code ER32

Display board overheating detected by NTC sensor (too hot on display).

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What the ER32 error code actually means

Your oven's control panel has gotten too hot, and a built-in temperature sensor detected the problem and triggered this error to protect the electronics. This often happens when there is not enough airflow around the oven, usually due to how it was installed in the kitchen. Until the issue is resolved, the oven may not operate normally.

Diagnostic procedure

The full ER32 procedure

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First diagnostic step
Verify correct installation of oven in kitchen and air ducts.
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Most common causes of ER32

Ranked by how often they cause this code
  1. 1Incorrect oven installation or insufficient clearance
  2. 2Blocked or improperly routed air ducts
  3. 3Failed or degraded cooling fan
  4. 4Faulty NTC temperature sensor on display board
  5. 5Damaged or failing display board

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Questions people ask about ER32

What does ER32 mean on a Ariston oven?
ER32 means the NTC temperature sensor located at the display board has detected that the board is running too hot. The oven's control system triggers this fault to protect the display electronics from heat damage. It is most commonly linked to ventilation or installation problems rather than an immediate component failure. Checking that the oven is correctly installed with proper air clearances is the recommended first step.
Is it safe to use my Ariston oven when ER32 is showing?
It is not recommended to continue using the oven while ER32 is active. The error indicates the display board is being exposed to excessive heat, which can cause permanent damage to the control electronics over time. Continued use without resolving the underlying cause could escalate the fault and lead to a more costly repair. Turn the oven off and address the ventilation or component issue first.
How much does it cost to repair an Ariston oven showing ER32?
If the fix is simply correcting the installation or clearing a blocked duct, costs may be minimal, covering only a service call fee typically in the range of $75 to $150. If a cooling fan replacement is needed, parts and labor generally range from $100 to $250. A display board or NTC sensor replacement can bring the total repair cost to somewhere between $150 and $400 depending on parts pricing and local labor rates.
How do I fix ER32 on my Ariston oven?
Start by checking that the oven is installed with the correct clearances and that all ventilation ducts are unobstructed and properly routed. If the installation looks correct, inspect the cooling fan to confirm it is operating. If ventilation is not the issue, a technician should test the NTC sensor's resistance and evaluate the display board for faults, replacing whichever component is confirmed defective.
Will resetting my Ariston oven clear the ER32 error?
A power reset may temporarily clear the ER32 code, but if the underlying cause such as a blocked duct, insufficient clearance, or a failing fan is not corrected, the error will return once the display board overheats again. A reset should only be used as part of diagnostics, not as a standalone fix. Resolve the root cause before returning the oven to regular use.

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