Alpha InTec 30C, 34C Error 46: External sensor intervention

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

Fault code46

The system has detected a break in the external sensor circuit. The manual's first action is: “Check external sensor and cable are not damaged or wet Check continuity of external sensor and circuit connecting block”

Model
Alpha InTec 30C, 34C
Display shows
External sensor intervention (46)
Type
Fault code
Source
Manual p. 42

What 46 means

External sensor intervention p. 42

Common causes

  • No continuity of external sensor circuit p. 42

What to do

  1. Check external sensor and cable are not damaged or wet Check continuity of external sensor and circuit connecting block p. 42

If 46 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.

Open the manual at page 42 All 30C, 34C error codes Manual details & download

This page summarises what the manufacturer’s manual says about 46; 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.