Vokera System Pressure Sensor Fault

Furnace shows 33, intermittent operation, pressure reading fluctuates

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

Defective pressure transducer, Blocked sensor connection, Loose wiring to sensor, PCB fault

Safety: Turn off power and allow system to cool before removing any sensor.

Locate pressure sensor: Typically mounted on the hydraulic block or pipework near the furnace base.
Inspect connection: Ensure the sensor is tightly screwed in and that its electrical connector is secure and dry.
Check for blockage: If accessible, remove the sensor and inspect the port for sludge or debris. Clean carefully and refit with a new seal if required.
Replace if faulty: If readings remain erratic, replace the sensor with a genuine Vokera pressure sensor.

Medium 3/5

System Pressure Sensor

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