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Vaillant Wiring Harness Supply Compressor 0020175820

Vaillant

Vaillant Wiring Harness Supply Compressor 0020175820

Vaillant wiring harness for the supply compressor, part number 0020175820, used on Arotherm VWL 115/2 A 230V heat pumps.

At a glance

  • Part type: wiring harness, supply compressor
  • Appliance family: Arotherm
  • Also known as 1386290
Manufacturer part no.
0020175820
Showing prices

£31.08

£25.90 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

This is a Vaillant wiring harness for the supply compressor, supplied under part number 0020175820. It is the electrical loom that connects the compressor to the appliance's supply and control circuitry on Vaillant Arotherm air source heat pumps. It is a service part intended for replacement where the existing harness is damaged or has failed.

Signs this part needs replacing

  • Compressor fails to run or runs intermittently with no other fault found
  • Visible damage to the harness, such as chafed, cracked or heat-affected insulation
  • Discoloured, corroded or loose connector terminals at the compressor or control board
  • Continuity faults or open circuits traced along the compressor supply wiring
  • Repeated electrical faults on the compressor circuit after other components have been checked

Before you order

  • Confirm the appliance model matches the fitment list above
  • Check the existing harness part number against 0020175820
  • Inspect the compressor and control board connectors for damage before fitting
  • Isolate the appliance from the electrical supply before carrying out any work

Not sure which part?

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