Manufacturer directory
Main Heating Boiler Fault Codes
Fault-code information for Main Heating boilers, grouped by verified boiler range. Each entry is linked to its own fault-code page.
Popular boiler ranges
Verified fault-code index
Eco Elite System
View range- E110 — Eco Elite System
Safety thermostat operated.
Read fault code - E119 — Eco Elite System
Water-pressure switch not operated; the manual states this is shown below 0.5 bar primary-water pressure.
Read fault code - E125 — Eco Elite System
Circulation fault in the primary circuit.
Read fault code - E131 — Eco Elite System
Interruption of power supply while in fault mode.
Read fault code - E133 — Eco Elite System
Interruption of gas supply or flame failure.
Read fault code - E160 — Eco Elite System
Fan or fan-wiring fault.
Read fault code - E20 — Eco Elite System
Central-heating NTC fault.
Read fault code - E28 — Eco Elite System
Incorrect PCB fitted.
Read fault code - E50 — Eco Elite System
Hot-water NTC fault.
Read fault code