Wiser Poor Temperature Control / Overshoot

Room temperature overshoots setpoint by several degrees before heating turns off

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Possible Causes

Thermostat installed in draught or near heat source, Incorrect control algorithm settings, Slow-response radiators or underfloor heating, Faulty temperature sensor

How to Fix / Troubleshooting

Safety first: No mains work is required.

  • Check thermostat location: Ensure the Wiser thermostat is on an interior wall, about 1.5 m above floor level, away from radiators, sunlight, and draughts.
  • Adjust control settings: In the Wiser app, check for advanced settings such as 'Eco', 'Comfort', or 'Adaptive' modes and experiment with different options to reduce overshoot.
  • Allow learning period: Many smart thermostats learn system response over several days. Give the system time to adapt after installation or major changes.
  • Compare temperature: Use a separate thermometer to verify the thermostat reading. If it is inaccurate, the thermostat may need replacement.
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Repair Difficulty

Very Easy 1/5

Required Part

Wiser Room Thermostat (location-dependent, not usually replaced)
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