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Ferroli Knob Selector Switch 39801290

Ferroli

Ferroli Knob Selector Switch 39801290

Selector switch knob for Ferroli gas boilers, including Optima, Combi, Roma, Hawk and Tempra models.

At a glance

  • Also known as 1210217
Manufacturer part no.
39801290
GC number
372-220
Showing prices

£6.90

£5.75 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 Ferroli 39801290 is a selector switch knob used on Ferroli gas boilers. It fits onto the selector switch spindle on the control panel, allowing the user to turn the switch and select the boiler's operating mode. It is used across several Ferroli boiler ranges, including Optima, Combi, Roma, Hawk and Tempra models.

Signs this part needs replacing

  • The knob turns freely without operating the selector switch
  • Visible cracks, splits or damage to the knob body
  • The knob no longer grips the switch spindle and slips or falls off
  • The position marker or pointer is missing or illegible
  • The knob has detached from the control panel

Before you order

  • Check your boiler model and GC number against the fitment list above
  • Confirm the existing knob's spindle fitting matches before ordering
  • If the switch itself does not operate, check the switch assembly as well as the knob
  • Note any superseded part numbers shown in your boiler's documentation

Not sure which part?

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