Vaillant
Vaillant Wiring Harness 24V 0010027551
24V wiring harness for Vaillant Arotherm 5/5 VWL 105/5 and VWL 125/5 AS 230V S2 heat pumps.
At a glance
- Appliance family: Arotherm 5/5
- Also known as 1391592
£190.04
£158.37 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
The Vaillant 0010027551 is a 24V wiring harness used in Vaillant Arotherm air-to-water heat pumps. It carries low-voltage control and signal connections within the appliance, linking the electrical components that the 24V circuit serves. It is supplied as a single harness assembly for use on the Arotherm 5/5 platform.
Signs this part needs replacing
- Fault codes or lockouts traced to a break in the 24V control circuit
- Intermittent operation or random shutdowns of the heat pump
- Visible chafing, cracking or heat damage to the harness insulation
- Corroded, loose or discoloured connector terminals
- Continuity faults on the 24V circuit confirmed by meter testing
Before you order
- Confirm the appliance model and serial number against the manufacturer's parts list
- Check the existing harness connectors and pin count match the part being ordered
- Verify the fault is in the harness itself and not in the connected component or board
- Isolate the power supply before removing or refitting any wiring
Compliance
| Alternative numbers | 1391592 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT aroTHERM 5/5 VWL 105/5 AS 230V S2 (2019) | — | — | — | |
| VAILLANT aroTHERM 5/5 VWL 125/5 AS 230V S2 (2019) | — | — | — |
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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