
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
£31.08
£25.90 ex. VAT · VAT at 20%
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
Compliance
| Alternative numbers | 1386290 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT VWL 115/2 A 230V | — | — | — | |
| VAILLANT aroTHERM VWL 115/2 A 230V (2013) | — | — | — |
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
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