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Vaillant Extension Thermal Fuse Cable 0020135108

Vaillant

Vaillant Extension Thermal Fuse Cable 0020135108

Vaillant cable 0020135108 for the thermal fuse extension circuit on compatible ecoTEC PLUS appliances.

At a glance

  • Appliance family: Vaillant ecoTEC PLUS
  • Also known as 1383365
Manufacturer part no.
0020135108
Showing prices

£12.94

£10.78 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 Vaillant 0020135108 is a cable for the thermal fuse extension circuit, listed as CABLE (EXTENSION THERMAL FUSE 5C). It is used in Vaillant ecoTEC PLUS gas boilers to connect or extend the thermal fuse wiring. The part forms part of the boiler's wiring and safety circuit.

Signs this part needs replacing

  • Boiler fails to fire or locks out intermittently.
  • Thermal fuse circuit shows open or intermittent continuity.
  • Visible damage, heat discolouration, or brittle insulation on the cable or connectors.
  • Overheat-related fault indications or repeated safety shutdowns.
  • Connectors are loose, corroded, or not securely clipped.

Before you order

  • Confirm your appliance model and GC number against the Fits list.
  • Check the existing cable connectors and routing to ensure the replacement matches the installed thermal fuse arrangement.
  • Verify the part number 0020135108 on the existing cable or in the manufacturer's parts list.
  • Confirm the appliance variant (R1/R2 where applicable) matches the listed compatibility.

Not sure which part?

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