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Ideal Pilot Pipe Assembly 120 170856

Ideal

Ideal Pilot Pipe Assembly 120 170856

Ideal 170856 pilot pipe assembly for Concord CXA 40-120 gas boilers, supplying gas to the pilot injector for safe ignition.

At a glance

  • Part type: Hoses and pipes
  • Appliance family: Concord CXA 40-120
  • Also known as 1177908
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
170856
Showing prices

£78.30

£65.25 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 Ideal 170856 is a pilot pipe assembly for Ideal commercial gas boilers. It forms part of the pilot circuit, carrying gas to the pilot injector so the pilot flame can establish and then light the main burner through the gas valve. The pilot assembly it belongs to typically comprises a pilot bracket, injector, electrode and thermocouple, working alongside the printed circuit board to give secure, repeatable ignition.

Signs this part needs replacing

  • The pilot fails to light or will not stay lit once the burner demand starts
  • A weak, unstable or discoloured pilot flame that will not hold steady
  • Repeated boiler lockouts or ignition faults traced to the pilot circuit
  • Visible damage, corrosion, cracking or a blocked pilot pipe on inspection
  • Soot or debris build-up around the pilot injector restricting gas flow

Before you order

  • Check the boiler's GC number and model plate against the compatibility list before ordering
  • Confirm the part number 170856 or the alternative number 1177908 matches the item being replaced
  • Inspect the pilot injector, electrode and thermocouple at the same time, as these are commonly replaced together
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.

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