Boiler model

Grant Vortex Pro External 15-26 Fault Codes

Name: Aza & Sons Services
Telephone: +447955014805

Verified fault-code information for the Vortex Pro External range.

Boiler repair help from Aza & Sons Services

Fault-code index

burner lock-out — Vortex Pro External
The Grant Vortex Pro External control panel provides a burner lock-out reset button; this is an oil-burner indication rather than a numeric boiler code.
Read fault code
overheat thermostat trip — Vortex Pro External
The safety overheat thermostat automatically switches the boiler off if the heat exchanger exceeds 110°C ± 3°C.
Read fault code
pump Run/Fault LED: red — Vortex Pro External
The Wilo-PARA circulating-pump table identifies a constant red Run/Fault LED as the pump being stopped.
Read fault code