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Vaillant Inverter 0010034459

Vaillant

Vaillant Inverter 0010034459

Inverter module for the Vaillant Arotherm PLUS /6 air-to-water heat pump, controlling compressor drive speed.

At a glance

  • Appliance family: Arotherm PLUS /6
  • Also known as 1392062
Manufacturer part no.
0010034459
Showing prices

£1,126.92

£939.10 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

The Vaillant 0010034459 is an inverter module for the Arotherm PLUS /6 air-to-water heat pump range. It regulates the speed of the compressor drive by converting the incoming supply into a variable-frequency output, allowing the heat pump to modulate its output rather than running only at fixed speed. It is a service component fitted inside the outdoor unit.

Signs this part needs replacing

  • The heat pump fails to start, with the compressor not running at all.
  • Fault codes relating to the inverter, compressor drive or power module are logged.
  • The outdoor unit trips the supply breaker or RCD on start-up.
  • The compressor runs only at a fixed speed, or output modulation is lost.
  • Visible damage, burning or discolouration at the inverter terminals or housing.

Before you order

  • Confirm the model and variant from the appliance data plate on the outdoor unit.
  • Check the part number against the manufacturer's parts list for your specific unit.
  • Verify the fault has been diagnosed as an inverter failure rather than a supply, sensor or compressor fault.
  • Work on the inverter and its supply should be carried out by a competent heating engineer.

Not sure which part?

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