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Vaillant Wiring Harness 0020231194

Vaillant

Vaillant Wiring Harness 0020231194

Wiring harness, part 0020231194, for Vaillant Ecofit PURE and Ecofit Sustain gas boilers.

At a glance

  • Also known as 1388246
Manufacturer part no.
0020231194
Showing prices

£22.34

£18.62 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 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 0020231194 is a wiring harness for Vaillant Ecofit PURE and Ecofit Sustain gas boilers. It carries the electrical connections between the boiler's control components, so that power and signals reach the correct parts of the appliance. It is supplied as a single harness assembly.

Signs this part needs replacing

  • Intermittent faults or random shutdowns traced to a loose or broken connection in the harness
  • Visible damage to the harness, such as chafed, cracked or heat-affected insulation
  • Corroded, burnt or discoloured connector pins or plug housings
  • Components failing to receive power or signals, with fault codes pointing to a communication or supply fault
  • Boiler failing to fire or operating erratically after the harness has been disturbed during service

Before you order

  • Confirm your boiler's model and variant code against the fit list above
  • Check the existing harness and connector layout matches the part before fitting
  • Isolate the electrical supply and follow the manufacturer's instructions when replacing the harness
  • Check the appliance's own identification plate if the model name alone is ambiguous

Not sure which part?

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