What the manual says
Manufacturer manualWaiting period: Water deficiency in the circuit (flow/return spread too large)
DIY fix possible
Check your radiator valves to ensure they are fully open.Check your system pressure gauge; if it is low (below 1 bar), use the filling loop to top it up to 1.5 bar.Bleed your radiators to remove any trapped air that might be blocking water flow.
Avoid the next call-out bill
A cover plan would handle faults like S.54: no call-out fees, no surprise bills.
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Related fault codes
All 79 fault codes on the Energy7 Regular
Seeing a different code? Every code this model can display, in one place.
Related guides you might find useful
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