Wiser by Drayton Excessive Power Consumption or Battery Sensing Fault

Wiser Room Thermostat or TRV frequently reports low battery even after recent replacement.

Possible Causes

Use of cheap or partially discharged batteries, High mechanical load on TRV valve, Faulty battery sensing circuit, Very cold installation environment

Safety: Low voltage only.

Use quality batteries: Install brand-name alkaline batteries from a fresh pack.
Free mechanical load: Ensure TRV valve pins move freely and are not stiff.
Check environment: Avoid installing devices in very cold areas where battery performance is reduced.

If battery warnings continue with good batteries and normal conditions, the device may have a sensing fault and should be replaced.

Very Easy 1/5

Wiser Radiator Thermostat

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