Alpha InTec 30C, 34C Error 29: Flue sensor fault

Alpha InTec gas boiler · taken from the manufacturer’s manual, pages cited

Fault code29

Flue sensor fault indicates the flue sensor resistance is out of range. The manual's first action is: “Check sensor wiring connection Flue sensor faulty”

Model
Alpha InTec 30C, 34C
Display shows
Flue sensor fault (29)
Type
Fault code
Source
Manual p. 42

What 29 means

Flue sensor fault p. 42

Common causes

  • Flue sensor resistance out of range p. 42

What to do

  1. Check sensor wiring connection Flue sensor faulty p. 42

If 29 is still not resolved

The manual gives no further instruction for this code. Open the code table in the PDF or contact Alpha InTec service.

This page summarises what the manufacturer’s manual says about 29; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Alpha InTec. Found a mistake? Report an error.