Vaillant
Vaillant Resistor Compressor 0020175853
Vaillant compressor resistor, part number 0020175853, for Arotherm and Arotherm PLUS air source heat pumps.
At a glance
- Also known as 1386344
£34.06
£28.38 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 compressor resistor, part number 0020175853, is an electrical component used in the compressor circuit of Vaillant Arotherm and Arotherm PLUS air source heat pumps. It forms part of the compressor's electrical control circuit, where its resistance value is critical to correct compressor operation. A resistor that has drifted out of tolerance or failed open circuit will interrupt the compressor circuit and stop the unit from running.
Signs this part needs replacing
- Compressor fails to start, with the unit running through a start attempt and then locking out
- Compressor-related fault codes logged by the heat pump controls
- No heating or hot water output despite the pump and fan running normally
- Visible overheating, discolouration or cracking on the resistor body
- Resistance reading outside the expected value when tested with a multimeter
Before you order
- Confirm the appliance model and build revision from the data plate, as fitment varies across Arotherm and Arotherm PLUS variants
- Check the part number 0020175853 against the manufacturer's parts list for your unit before ordering
- Isolate the electrical supply and discharge any stored energy before testing or removing the existing resistor
- Test the existing resistor for continuity and resistance value to confirm it is the failed component
Compliance
| Alternative numbers | 1386344 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT VWL 115/2 A 230V | — | — | — | |
| VAILLANT VWL 155/2 A 230V | — | — | — | |
| VAILLANT aroTHERM 5/5 VWL 105/5 AS 230V S2 (2019) | — | — | — | |
| VAILLANT aroTHERM 5/5 VWL 125/5 AS 230V S2 (2019) | — | — | — | |
| VAILLANT aroTHERM PLUS /6 VWL 35/6 A 230V S2 (2020-2022) | — | — | — | |
| VAILLANT aroTHERM PLUS /6 VWL 35/6 A 230V S2 R1 (2022) | — | — | — | |
| VAILLANT aroTHERM PLUS /6 VWL 35/6 A 230V S2 R2 (2023) | — | — | — | |
| VAILLANT aroTHERM PLUS /6 VWL 55/6 A 230V S2 (2020-2022) | — | — | — | |
| VAILLANT aroTHERM PLUS /6 VWL 55/6 A 230V S2 R1 (2022) | — | — | — | |
| VAILLANT aroTHERM PLUS /6 VWL 55/6 A 230V S2 R2 (2023) | — | — | — |
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