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Patricia ThomasJul 31, 2025
What to do if robatherm AR3 does not fill with water?
- KKyle DavisJul 31, 2025
If your robatherm Boiler isn't filling with water, several factors could be at play. First, ensure there is an electrical supply and the unit is properly plugged in. Then, verify that the water supply is active. A blocked inlet strainer could also be the cause; inspect it and clean or replace if necessary. Other potential issues include an electronic controller failure (test it), a solenoid valve failure (check its resistance and replace if broken), or a blocked filter (if your unit has one, check and replace it, referring to section 5E for resetting).
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