TRV02

Wiser by Drayton TRV Travel Range or Calibration Fault

Wiser Radiator Thermostat shows TRV02; app reports valve travel or calibration error.

Possible Causes

Incorrect adapter used between TRV and valve body, Valve pin travel outside expected range, Obstruction inside valve, Firmware calibration error

How to Fix / Troubleshooting

Safety: Radiators may be hot; allow to cool if necessary.

Check adapter: Ensure the correct Wiser adapter is used for your valve type (e.g. M30x1.5). Tighten the adapter securely.
Free valve pin: Remove TRV head and manually exercise the valve pin until it moves smoothly.
Re-run calibration: Refit the TRV and, via the app or device procedure, start a calibration cycle so the TRV can learn the valve travel.

If TRV02 persists with the correct adapter and a free valve pin, the TRV's internal position sensor or firmware may be faulty. Replace the TRV head.

Repair Difficulty

Easy 2/5

Required Part

Wiser Radiator Thermostat

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