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jennymeadowsJul 26, 2025
What to do if my Glow-worm Control Unit has no display?
- AAmanda GouldJul 26, 2025
If the Glow-worm Control Unit display is not working, first, ensure the batteries are correctly installed with the correct polarity. If they are, check if the batteries are exhausted and replace them with new ones if needed. You may also need to check that power is supplied to the heating system, reset the system or increase the system pressure; refer to the appliance manual for instructions.
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