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Potterton Wiring H.T. RS2Z 5138702

Potterton

Potterton Wiring H.T. RS2Z 5138702

Potterton high-tension wiring lead, part 5138702, for Potterton Commercial Sirius SAT Ra2Z and Rs2Z boilers.

At a glance

  • Part type: high-tension wiring lead
Manufacturer part no.
5138702
Showing prices

£260.89

£217.41 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 Potterton Wiring H.T. RS2Z is a high-tension wiring lead supplied by Potterton Commercial for its Sirius range of commercial gas boilers. It carries the manufacturer part number 5138702 and sits within the boiler's ignition wiring circuit.

Signs this part needs replacing

  • The boiler fails to ignite, with no spark at the ignition electrode
  • Sparking or arcing is visible or audible from damaged insulation on the lead
  • The lead shows cracked, burnt or perished insulation, particularly near the electrode end
  • Ignition is intermittent, with the boiler locking out after failed start attempts
  • The lead has been disturbed during service and the terminal connections no longer sit securely

Before you order

  • Confirm the appliance model is a Potterton Commercial Sirius SAT Ra2Z or Rs2Z
  • Check the part number 5138702 against the marking on the existing lead or the appliance documentation
  • Inspect the lead routing and electrode connection before fitting to confirm the HT circuit is the source of the fault

Not sure which part?

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