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Potterton PCB for H.B. Siemens 5138665

Potterton

Potterton PCB for H.B. Siemens 5138665

Printed circuit board for Potterton Commercial Sirius SAT boilers, listed as PCB for H.B. Siemens.

Manufacturer part no.
5138665
Showing prices

£290.90

£242.42 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

Printed circuit board (PCB) supplied for H.B. Siemens control applications on Potterton Commercial boilers. It is the control board for the appliance, carrying the low-voltage control circuit that governs boiler sequencing, monitoring and safety interlocks. This board is listed under Potterton part number 5138665.

Signs this part needs replacing

  • Boiler locks out or fails to fire, with no ignition sequence starting
  • Fault code or diagnostic indication on the control panel that points to the board
  • Fan, pump or gas valve not being driven, or running erratically
  • Display or control panel dead or intermittent
  • Repeated blown fuses on the board supply

Before you order

  • Confirm the boiler model is one of the Sirius SAT variants listed above
  • Match the existing board's part number and connector layout to 5138665
  • Check the board for visible damage, tracks or burnt components before condemning it
  • Work should be carried out by a competent heating engineer with the appliance isolated from the electrical supply

Not sure which part?

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