P1

Klarstein Pressure Sensor Low Signal / No Pressure Detected

P1 error or code appears and cooker stops heating; often associated with low or no pressure.

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.

Possible Causes

Pressure sensor out of calibration, Loose pressure sensor connector, Leaking sealing ring or valves preventing pressure build-up, Faulty main PCB pressure reading circuit

How to Fix / Troubleshooting

Safety: Allow the cooker to cool and depressurize before inspection.

Step 1 – Check for leaks:

Run a water-only pressure test.
Observe for steam leaks around the lid, sealing ring, float valve, and steam release valve.

Step 2 – Inspect pressure sensor:

Unplug the unit and remove the top cover.
Locate the pressure sensor and ensure its connector is firmly seated.
If a silicone tube is used, check for cracks or disconnection.

Step 3 – Repair:

Replace worn sealing ring and valve gaskets to ensure proper pressure.
If leaks are resolved but P1 persists, replace the pressure sensor.
Persistent issues after sensor replacement may indicate a faulty main PCB, which should be replaced by a technician.

Repair Difficulty

Medium 3/5

Required Part

Pressure Sensor

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