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Vaillant GMC Electronics 0020127203

Vaillant

Vaillant GMC Electronics 0020127203

Vaillant GMC electronics module 0020127203 for geoTHERM VWL 45/1, 65/1 and 75/1 A 230V units.

At a glance

  • Part type: GMC electronics
  • Appliance family: Vaillant geoTHERM VWL
  • Also known as 1385181
Manufacturer part no.
0020127203
Showing prices

£521.89

£434.91 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 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 0020127203 is a GMC electronics module used across the Vaillant geoTHERM VWL range. It provides the control electronics for GMC 4-6-8-12-15 kW applications. It is fitted to the VWL 45/1, 65/1 and 75/1 A 230V models.

Signs this part needs replacing

  • The appliance fails to power up or shows no response at the control panel
  • Fault codes relating to the control electronics appear and cannot be cleared
  • Erratic or intermittent operation of the unit's control functions
  • The unit stops responding to heating or hot water demand
  • Visible damage, moisture ingress or burning on the electronics board

Before you order

  • Confirm your appliance model against the fit list above
  • Check the part number printed on the existing electronics module matches 0020127203
  • Verify the kW rating of your unit falls within the GMC 4-6-8-12-15 kW range
  • Isolate the power supply before removing or fitting any electronics component

Not sure which part?

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