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Potterton Wiring L.T. R2Z 5138705

Potterton

Potterton Wiring L.T. R2Z 5138705

Low tension wiring lead, Potterton part 5138705, for the Potterton Commercial Sirius SAT R2Z boiler.

Manufacturer part no.
5138705
Showing prices

£140.83

£117.36 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 WIRING L.T. R2Z is a low tension wiring lead supplied by Potterton Commercial for its commercial gas boilers. It forms part of the boiler's electrical harness, carrying low voltage signals between components within the casing. It is catalogued as a wiring spare for the Potterton Commercial Sirius SAT R2Z.

Signs this part needs replacing

  • Boiler fails to fire or locks out with an electrical fault traced to the low tension circuit
  • Intermittent operation, or faults that alter when the harness is disturbed
  • Visible damage to the lead, such as chafed, cracked or heat-affected insulation
  • Loose, corroded or discoloured connectors at either end
  • Continuity fault or open circuit measured through the lead

Before you order

  • Confirm the appliance is a Potterton Commercial Sirius SAT R2Z
  • Check the part number 5138705 against the existing lead or the boiler documentation
  • Note the connector types and routing of the original lead before removal

Not sure which part?

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