Firebird

Enviromax System 35

System Boiler 35kW 2015-present ErP A 20 fault codes

<p>The Enviromax System 35 is a system boiler from Firebird, available at 35kW output. Produced 2015-present.</p>

Enviromax System 35 Fault Codes 20

Code Description Severity Type

L1 Ignition Lockout The burner has failed to ignite and the boiler has locked out. High Engineer View Guide

L10 PCB Fault The main PCB has an internal error. High Engineer View Guide

L11 APS Fault Air pressure switch not confirming airflow. High Engineer View Guide

L12 DHW Sensor Fault Hot water NTC sensor faulty. Medium Engineer View Guide

L13 Diverter Valve Fault Valve stuck. Medium Engineer View Guide

L14 Gas Valve Fault Gas valve not responding. High Engineer View Guide

L15 Combustion Fault Combustion quality outside limits. High Engineer View Guide

L16 PCB Communication Error Internal PCB fault. High Engineer View Guide

L17 Pressure Sensor Fault Sensor giving incorrect readings. Medium Engineer View Guide

L18 Rapid Temperature Rise Flow temp rising too fast. High Engineer View Guide

L19 Frost Protection Frost protection running. Medium DIY View Guide

L2 Flame Failure During Operation The flame was established but has been lost. High Engineer View Guide

L20 eBUS Fault Communication fault. Medium Engineer View Guide

L3 Overheat Lockout The boiler has exceeded its safe temperature and locked out. High Engineer View Guide

L4 Low Water Pressure System water pressure is below the minimum. Low DIY View Guide

L5 Return Sensor Fault The return NTC temperature sensor has a fault. Medium Engineer View Guide

L6 Flow Sensor Fault The flow NTC temperature sensor has a fault. Medium Engineer View Guide

L7 Pump Fault The circulation pump is not running or is blocked. High Engineer View Guide

L8 Fan Fault The fan is not running correctly. High Engineer View Guide

L9 Condensate Blocked The condensate drain is blocked or frozen. Medium DIY View Guide