Alpha InTec 30C, 34C Error 15: Internal wiring error

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

Fault code15

Error code 15 indicates an internal wiring error in the system. The manual lists no action for this code.

Model
Alpha InTec 30C, 34C
Display shows
Internal wiring error (15)
Type
Fault code
Source
Manual p. 41

What 15 means

Internal wiring error p. 41

Common causes

  • Check internal wiring connections to PCB Combination boiler DHW sensor X4 System boiler link X14 p. 41
  • Refer to wiring diagram p. 41

If 15 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 41 All 30C, 34C error codes Manual details & download

This page summarises what the manufacturer’s manual says about 15; 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.