Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Ferroli Optimax HE Printed Circuit Board 39821523

Ucp

Ferroli Optimax HE Printed Circuit Board 39821523

Ferroli 39821523 (DMB04) printed circuit board for the Optimax HE and Optimax HE Plus boiler range, replacing 39821520.

At a glance

  • Also known as 2081272
  • Fitting must be carried out by a Gas Safe registered engineer
Manufacturer part no.
S4962V2001U
Showing prices

£233.28

£194.40 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 working day
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

This is a Ferroli printed circuit board (DMB04 control box) for the Optimax HE range. "UCP" on this listing denotes an unbranded, non-boxed version of the genuine Ferroli part, sourced directly from the manufacturer rather than in Ferroli retail packaging. The PCB manages ignition, fan speed, pump control and safety shutoff.

Signs this part needs replacing

  • Boiler locks out with no clear ignition, fan or pump fault
  • Intermittent or erratic firing
  • Display or fault-code panel unresponsive
  • Boiler fails to respond to the room thermostat

Before you order

  • Match the GC number of your boiler against the confirmed fitment list
  • Isolate electrical power before replacing
  • Fitting must be carried out 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.