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Boiler fault and error code information for the Ariston Combi A boiler

Do you have a faulty Ariston Combi A boiler? If your boiler experiences a fault then your boiler should display an error code. Please refer to the table below to diagnose the fault.

MR Boiler Repairs is the UK’s leading boiler repair and service specialist, providing support for domestic, commercial and residential properties. Our low cost fixed price repair service will provide you with peace of mind and avoid any scary repair bills.

Error codes for the Ariston Combi A boiler

    • A01 Overheat lock out
    • A03 No flame after safety time
    • A36 Flue pipe too high temperature
    • A37 CPU fault
    • A39 MCU fault 1
    • A40 MCU fault 2
    • A41 Fan error
    • E02 Pump protection
    • E04 No flame detection
    • E05 Anti freezing system, pump on
    • E06 Anti freezing system, pump and burner on
    • E07 No water circulation in primary circuit
    • E08 No water in the primary circuit
    • E09 DHW sensor open circuit
    • E10 DHW sensor short circuit
    • E11 flow sensor open circuit
    • E12 Flow sensor short circuit
    • E13 Return sensor open circuit
    • E14 Return sensor short circuit
    • E15 Outdoor sensor open circuit
    • E16 Outdoor sensor short circuit
    • E18 Flame lift
    • E20 Flame detect with gas valve off
    • E22 Fault air pressure switch
    • E23 Low fan speed
    • E29 Room thermostat open circuit
    • E30 Rom thermostat short circuit
    • E33 Floor heating thermostat open circuit
    • E37 Communication problem with the main PCB
    • E38 Reset button pressed 5 times in 15 minutes

If you require a Gas Safe service engineer to repair your boiler then book a boiler repair today.

 

Ariston Boiler Manuals / Instructions

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