Glow-worm Excessive Power Consumption

Thermostat batteries drain much faster than expected

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Possible Causes

Poor RF signal causing repeated retransmissions, Backlight set to always on, Old or low‑quality batteries, Internal fault in power regulation circuit

How to Fix / Troubleshooting

Safety: Only battery replacement and settings changes are needed.

Steps:

  • Use fresh, branded alkaline batteries and ensure they are within expiry date.
  • Reduce backlight brightness and timeout in the thermostat settings.
  • Improve RF signal by relocating the receiver closer or reducing obstacles between thermostat and receiver.
  • Check for firmware updates that may address known battery drain issues.

Remedy:

  • If batteries still drain within weeks, the thermostat may have an internal fault. Replace the thermostat head.
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Repair Difficulty

Very Easy 1/5

Required Part

Glow-worm battery‑powered thermostat head
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