FAQ
Find answers to the most common questions about water heaters.
Locate the filling loop (usually underneath the boiler), open both valves slowly until the pressure gauge reads 1–1.5 bar, then close the valves and check for leaks.
Yes! Use a system cleaner, circulate it, then drain and refill—but consult your manual first.
Check the pressure (repressurize if low), ensure vents aren’t blocked, and reset the boiler. If issues persist, it may indicate a faulty pump or thermostat needing professional repair.
Locate the filling loop, open valves until pressure reaches 1–1.5 bar, then close.
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