Boiler model
Alpha E-Tec 33 Fault Codes
Verified fault-code information for the E-Tec 28 and 33 range.
Fault-code index
- 01 — E-Tec 28 and 33
Ignition failure; flame not detected during the ignition sequence.
Read fault code - 02 — E-Tec 28 and 33
Overheat boiler lockout.
Read fault code - 03 — E-Tec 28 and 33
High flue temperature.
Read fault code - 04 — E-Tec 28 and 33
Gas-valve electrical connection fault.
Read fault code - 05 — E-Tec 28 and 33
CH flow sensor fault.
Read fault code - 06 — E-Tec 28 and 33
DHW sensor fault.
Read fault code - 08 — E-Tec 28 and 33
Maximum number of resets reached (five).
Read fault code - 10 — E-Tec 28 and 33
Primary system pressure low.
Read fault code - 16 — E-Tec 28 and 33
Fan fault.
Read fault code - 20 — E-Tec 28 and 33
Flame-sensing fault; false flame detection.
Read fault code - 27 — E-Tec 28 and 33
Primary circuit overheat.
Read fault code - 38 — E-Tec 28 and 33
Loss of flame rectification.
Read fault code