Vaillant
Vaillant EBox Wiring Harness 24V 0020175840
24V EBox wiring harness for Vaillant Arotherm and VWL 55/2, 85/2 and 115/2 heat pumps.
At a glance
- Also known as 1386320
£9.67
£8.06 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 0020175840 is a 24V wiring harness for the EBox control module on Vaillant Arotherm and VWL air-to-water heat pumps. It carries the low-voltage control connections within the EBox assembly. It is supplied as a single harness for service replacement.
Signs this part needs replacing
- Fault codes or communication errors traced to the EBox low-voltage circuit
- Intermittent operation or dropouts that clear when the harness is moved
- Visible damage to the harness insulation, such as chafing, heat marking or rodent damage
- Corroded, loose or discoloured terminals at the harness plugs
- Continuity faults on one or more conductors when tested
Before you order
- Confirm the appliance model and variant against the fit list above
- Check the part number on the existing harness or the manufacturer's parts list for your unit
- Inspect the EBox connectors for damage before fitting, as a faulty plug can mimic a harness fault
- Isolate the appliance from the power supply before removing or refitting the EBox cover
Compliance
| Alternative numbers | 1386320 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT VWL 115/2 A 230V | — | — | — | |
| VAILLANT VWL 55/2 A 230V | — | — | — | |
| VAILLANT VWL 85/2 A 230V | — | — | — | |
| VAILLANT aroTHERM VWL 115/2 A 230V (2013) | — | — | — | |
| VAILLANT aroTHERM VWL 55/2 A 230V (2014) | — | — | — | |
| VAILLANT aroTHERM VWL 85/2 A 230V (2013) | — | — | — |
Documents & drawings
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