Boiler Spares https://validator.w3.org/feed/docs/rss2.html Sime AL 24 – Flow Sensor Short (Alarm 24) Sime AL 25 – DHW Sensor Short (Alarm 25) Sime AL 27 – Compatibility Error (Alarm 27) Sime AL 29 – PCB Fault (Alarm 29) Sime AL 31 – Communication Fault (Alarm 31) Sime AL 32 – Combustion Fault (Alarm 32) Sime E01 – Ignition Failure Sime E02 – Overheat Protection Sime E03 – Fan Fault Sime E04 – DHW Sensor Fault Sime E05 – Flow Sensor Fault Sime E06 – No Flame Detection Sime E07 – Safety Thermostat Intervention Sime E08 – Air Pressure Switch Fault Sime E09 – Gas Valve Fault Sime E10 – Return Sensor Fault Sime E11 – PCB Fault Sime E12 – Pump Fault Sime E13 – Low Water Pressure Sime E14 – Condensate Blocked Sime E15 – Diverter Valve Fault Sime E16 – Flame Lost During Operation Sime AL 01 – Smoke Thermostat (Alarm 01) Sime AL 02 – Low Water Pressure (Alarm 02) Sime AL 04 – DHW Sensor Fault (Alarm 04) Sime AL 05 – Flow Sensor Fault (Alarm 05) Sime AL 06 – No Flame Detection (Alarm 06) Sime AL 07 – Safety Thermostat (Alarm 07) Sime AL 09 – Fan Fault (Alarm 09) Sime AL 10 – Return Sensor Fault (Alarm 10) Myson PILOT OUT – Pilot Light Failure Myson FLUE SPILLAGE – Flue Spillage Detector Tripped Myson OVERHEAT – High Temperature Lockout Myson NO IGNITION – Main Burner Not Lighting Myson PUMP FAULT – Pump Not Running Myson LOW PRESSURE – Low System Pressure Sime Chaffoteaux 50 – Ionisation PCB Fault (LED code) Chaffoteaux 60 – Antifrost Mode — Pump Running (LED code) Chaffoteaux 70 – Antifrost Mode — Burner Running (LED code) Chaffoteaux 80 – DHW Thermistor Open Circuit (LED code) Chaffoteaux E01 – Ignition Failure (modern models) Chaffoteaux E02 – Safety Thermostat (modern models) Chaffoteaux E03 – Low Pressure (modern models) Home Page Chaffoteaux E04 – Flow Sensor Fault (modern models) Chaffoteaux E05 – Return Sensor Fault (modern models) Myson Halstead 13 – Pump Fault Blog