P1
Polaris
Pressure System Integrity Fault
P1 error appears when selecting or running pressure programs; cooker may not lock or build pressure.
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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
Defective pressure sensor calibration, Persistent leak at lid seal, Faulty float valve not indicating correct position, Control board pressure logic error
How to Fix / Troubleshooting
Safety first: Ensure the cooker is cool and depressurized before inspection.
- Check sealing components: Inspect the lid sealing ring, float valve, and steam release valve for wear or contamination. Replace any worn silicone parts.
- Run water test: With 2–3 cups of water, start a pressure program and observe. If steam leaks continuously, address mechanical leaks first.
- Pressure sensor check: If no visible leaks but P1 persists, test or replace the pressure sensor module as per Polaris specifications.
- Control board: If a new sensor and seals do not resolve P1, the main control board may require replacement.
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Repair Difficulty
Medium
3/5
Required Part
Pressure Sensor Module / Lid Sealing Ring
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