Unable to open Smart Radiator Thermostat
What seems like something of a stupid question. I've been given a used Quattro pack of Smart Radiator Thermostats, and three were easy to set up, but I can't get the fourth unit open to install batteries. The original owner is "shrug, I don't know, they've been back in the box for a while".
Is there anything obvious I'm missing?
Thanks :)
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Best Answer
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Had an offlist suggestion and now able to open - (gripping firmly on the inner plastic ring). Thanks :)
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