Ariston EuroCombi SX 20 MFFI CE GC 47-116-02 Ignition Fault
Ariston EuroCombi SX 20 MFFICE GC 47-116-02
Boiler fails to go into ignition mode. In fact it only fires once in a while. If the boiler is fitted with a circular white air pressure switch, remove leads and check continuity between contact at 12 Noon and that at 6.00 O’clock with fan running. Replacement is a Honeywell air pressure switch.
