H
Halstead Fault Codes
Select a fault code to see its meaning, common causes and how to fix it.
- 1 Fault code 1 on a Halstead boiler indicates that the appliance has detected an overheat condition — specifically, the… Read more →
- 2 Fault Code 2 on Halstead boilers that display numbered error codes signals an ignition lockout — the boiler has… Read more →
- 3 Fault code 3 appears on the digital display when the boiler has entered a lockout condition after failing to establish… Read more →
- 4 Fault code 4 on Halstead boilers (including the Ace HE range) indicates that the flue gas temperature sensor has… Read more →
- 5 Fault code 5 on Halstead boilers points to a problem with one or more of the boiler's temperature sensors (NTC… Read more →
- 6 Fault code 6 on Halstead boilers (including the Ace HE range) is a safety lockout triggered when the boiler's control… Read more →
- 7 Fault code 7 on a Halstead boiler indicates that the control board is not receiving a valid speed signal from the flue… Read more →
- E The 'E' fault code on Halstead boilers — often displayed as 'E1' on digital-display models such as the Ace HE 24/30/35… Read more →
- P The 'P' fault code appears on Halstead boilers with an alphanumeric digital display — most notably the Eden VBX and the… Read more →