F18
Hotpoint-Ariston
Configuration / Software Communication Fault
Oven shows F18; may be related to data communication or configuration on some models.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Incorrectly programmed replacement board, Firmware mismatch between display and power board, Corrupted configuration data, Faulty PCB
How to Fix / Troubleshooting
Safety first: Disconnect power before removing any panels.
Step-by-step checks:
- 1. Confirm recent repairs: If a control board was recently replaced, verify that the correct Hotpoint-Ariston part number was used for your exact model.
- 2. Power reset: Perform a full power cycle (10–15 minutes off) and check if F18 clears.
- 3. Inspect boards: Check that all connectors between boards are correctly seated and that there are no bent pins.
- 4. Replace with correct module: If F18 persists, obtain the correct pre-programmed control module specified for your oven model. Mixing boards from different models can cause this error.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control Board
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