Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Johnson & Starley HISPEC J50 burner and gas control valve B502-0700000

Johnson & Starley

Johnson & Starley HISPEC J50 burner and gas control valve B502-0700000

Burner and gas control assembly, complete with valve, for the Johnson & Starley HISPEC J50 warm air heater.

At a glance

  • Also known as 1691766
  • Have the replacement fitted by a Gas Safe registered engineer
Manufacturer part no.
B502-0700000
GC number
E02-420
Showing prices

£805.25

£671.04 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The B502-0700000 is a burner and gas control assembly, supplied complete with its valve, fitted to Johnson & Starley's HISPEC J50 warm air heater. It combines the main burner with its gas control valve to manage gas flow to the burner.

Signs this part needs replacing

  • Burner fails to ignite or ignites unevenly
  • Gas valve fails to open or close correctly on a call for heat
  • Unit locks out on a gas or ignition fault
  • Yellow or unstable flame at the burner

Before you order

  • Confirm the fuel type and model on your appliance data plate
  • Match the part number printed on your existing assembly
  • Isolate the gas and electrical supply before removal
  • Have the replacement fitted by a Gas Safe registered engineer

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.