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Vaillant Fuse 5.0A T 251964

Vaillant

Vaillant Fuse 5.0A T 251964

Vaillant 251964 5.0 A type T fuse, supplied in a pack of ten for Ecomax gas boilers.

At a glance

  • Also known as 1377496
Manufacturer part no.
251964
Showing prices

£9.60

£8.00 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 251964 is a 5.0 A type T fuse supplied in a pack of ten. It is fitted to Vaillant Ecomax gas boilers, where it protects the appliance's electrical circuit. The fuse is a service item intended for replacement when the original has blown.

Signs this part needs replacing

  • The boiler is completely dead, with no display or indicator lights
  • No response from the boiler when it is switched on at the controls
  • The fuse is visibly blown, blackened or has a broken element
  • The boiler blows a replacement fuse shortly after fitting
  • Power is lost to the boiler while other appliances on the same circuit continue to work

Before you order

  • Confirm the fuse rating and type marked on the existing fuse or shown on the boiler's wiring diagram
  • Check the boiler model against the fitment list above
  • Isolate the electrical supply before removing or fitting any fuse
  • Establish why the original fuse blew before fitting a replacement, as a repeat failure points to a fault elsewhere

Not sure which part?

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