Vaillant
Vaillant Fuse 1.25A T 251961
A 1.25A T fuse for Vaillant Thermocompact and Turbomax Plus gas boilers, supplied in a pack of 10.
At a glance
- Also known as 1377490
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 251961 is a 1.25A T fuse supplied in a pack of 10. It is used in Vaillant Thermocompact and Turbomax Plus gas boilers to protect electrical circuits from overcurrent. This fuse is a service component that may need replacing if a circuit fault occurs.
Signs this part needs replacing
- The boiler does not power up and the fuse element is broken.
- The fuse shows blackening or signs of overheating.
- The boiler repeatedly blows fuses, indicating an underlying electrical fault.
- Electrical components within the boiler are not receiving power.
Before you order
- Confirm your boiler model is listed in the compatibility section.
- Check that the existing fuse is rated 1.25A T.
- Verify the Vaillant part number 251961.
- Inspect the fuse holder and associated wiring for faults before fitting a new fuse.
Compliance
| GC number | 283-766 |
|---|---|
| Barcode / EAN | 4024074437483 |
| Alternative numbers | 1377490 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT THERMOcompact 615E VU 152-5 (2000-2001) | 41-044-23 | 41-044-23 | — | — |
| VAILLANT THERMOcompact 615E VU 152/2-5 (2001-2002) | 41-044-23 | 41-044-23 | — | — |
| VAILLANT THERMOcompact 615E VU 152/2-5 R1 (2002-2004) | 41-044-23 | 41-044-23 | — | — |
| VAILLANT THERMOcompact 615E VU 152/2-5 R3 (2004-2006) | 41-044-23 | 41-044-23 | — | — |
| VAILLANT THERMOcompact 620E VU 202-5 (2000-2001) | 41-044-24 | 41-044-24 | — | — |
| VAILLANT THERMOcompact 620E VU 202/2-5 (2001-2002) | 41-044-24 | 41-044-24 | — | — |
| VAILLANT THERMOcompact 620E VU 202/2-5 R1 (2002-2003) | 41-044-24 | 41-044-24 | — | — |
| VAILLANT THERMOcompact 620E VU 202/2-5 R2 (2003-2004) | 41-044-24 | 41-044-24 | — | — |
| VAILLANT THERMOcompact 620E VU 202/2-5 R3 (2004-2006) | 41-044-24 | 41-044-24 | — | — |
| VAILLANT THERMOcompact 624E VU 242-5 (2000-2001) | 41-044-25 | 41-044-25 | — | — |
Showing 10 of 183 compatible appliances.
Fitment listings are a guide, not a guarantee. Plant-room assemblies get modified on site more often than not. Send us the GC number off the data badge and a photo of the existing valve and we will confirm before anything is dispatched.
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
manual
VAILLANT appliance manual — THERMOcompact 615E VU 152/2-5 (2001-2002) (GC 41-044-23), THERMOcompact 615E VU 152/2-5 R1 (2002-2004) (GC 41-044-23), THERMOcompact 615E VU 152/2-5 R3 (2004-2006) (GC 41-044-23), THERMOcompact 620E VU 202/2-5 (2001-2002) (GC 41-044-24), THERMOcompact 620E VU 202/2-5 R1 (2002-2003) (GC 41-044-24), THERMOcompact 620E VU 202/2-5 R2 (2003-2004) (GC 41-044-24), THERMOcompact 620E VU 202/2-5 R3 (2004-2006) (GC 41-044-24), THERMOcompact 624E VU 242/2-5 (2001-2002) (GC 41-044-25), THERMOcompact 624E VU 242/2-5 R1 (2002-2003) (GC 41-044-25), THERMOcompact 624E VU 242/2-5 R2 (2003-2004) (GC 41-044-25), THERMOcompact 624E VU 242/2-5 R3 (2004-2006) (GC 41-044-25), THERMOcompact 628E VU 282/2-5 (2001-2002) (GC 41-044-26), THERMOcompact 628E VU 282/2-5 R1 (2002-2003) (GC 41-044-26), THERMOcompact 628E VU 282/2-5 R2 (2003-2004) (GC 41-044-26), THERMOcompact 628E VU 282/2-5 R3 (2004-2006) (GC 41-044-26), THERMOcompact 637E VU 362/2-5 (2002-2004) (GC 41-044-32), THERMOcompact 637E VU 362/2-5 R3 (2004-2006) (GC 41-044-32), TURBOmax Plus 824E VUW 242-5 (2000-2001) (GC 47-044-04), TURBOmax Plus 824E VUW 242/2-5 (2001-2002) (GC 47-044-04), TURBOmax Plus 824E VUW 242/2-5 R1 (2002-2002) (GC 47-044-04), TURBOmax Plus 824E VUW 242/2-5 R2 (2003-2004) (GC 47-044-04), TURBOmax Plus 824E VUW 242/2-5 R3 (2004-2004) (GC 47-044-04), TURBOmax Plus 828E VUW 282/2-5 (2001-2002) (GC 47-044-09), TURBOmax Plus 828E VUW 282/2-5 R1 (2002-2002) (GC 47-044-09), TURBOmax Plus 828E VUW 282/2-5 R2 (2003-2004) (GC 47-044-09), TURBOmax Plus 828E VUW 282/2-5 R3 (2004-2004) (GC 47-044-09), TURBOmax Plus 836E VUW 362/2-5 (2002-2004) (GC 47-044-28), TURBOmax Plus 836E VUW 362/2-5 R3 (2004-2004) (GC 47-044-28), TURBOmax Plus 837E VUW 362/2-5 (2002-2004) (GC 47-044-28), TURBOmax Plus 837E VUW 362/2-5 R3 (2004-2004) (GC 47-044-28), VU 152/2-5 (GC 41-044-23), VU 152/2-5 R1 (GC 41-044-23), VU 152/2-5 R3 (GC 41-044-23), VU 202/2-5 (GC 41-044-24), VU 202/2-5 R1 (GC 41-044-24), VU 202/2-5 R2 (GC 41-044-24), VU 202/2-5 R3 (GC 41-044-24), VU 242/2-5 (GC 41-044-25), VU 242/2-5 R1 (GC 41-044-25), VU 242/2-5 R2 (GC 41-044-25), VU 242/2-5 R3 (GC 41-044-25), VU 282/2-5 (GC 41-044-26), VU 282/2-5 R1 (GC 41-044-26), VU 282/2-5 R2 (GC 41-044-26), VU 282/2-5 R3 (GC 41-044-26), VU 362/2-5 (GC 41-044-32), VU 362/2-5 R3 (GC 41-044-32), VUW 242-5 (GC 47-044-04), VUW 242/2-5 (GC 47-044-04), VUW 242/2-5 R1 (GC 47-044-04), VUW 242/2-5 R2 (GC 47-044-04), VUW 242/2-5 R3 (GC 47-044-04), VUW 282/2-5 (GC 47-044-09), VUW 282/2-5 R1 (GC 47-044-09), VUW 282/2-5 R2 (GC 47-044-09), VUW 282/2-5 R3 (GC 47-044-09), VUW 362/2-5 (GC 47-044-28), VUW 362/2-5 R3 (GC 47-044-28)
manualmanualVAILLANT appliance manual — THERMOcompact VU 142/1E (1998-2000) (GC 41-044-16), THERMOcompact VU GB 142/1 E (1998-2000) (GC 41-044-16), THERMOcompact VU GB 182/1E (1998-2000) (GC 41-044-13), THERMOcompact VU GB 242/1E (1998-2000) (GC 41-044-18), THERMOcompact VU GB 282/1E (1998-2000) (GC 41-044-19), VU 142/1 E (GC 41-044-16), VU 182/1 E (GC 41-044-13), VU 242/1 E (GC 41-044-18), VU 282/1 E (GC 41-044-19)
manualmanualVAILLANT appliance manual — TURBOmax Pro 24E VUW 242-3 (2000-2001) (GC 47-044-10), TURBOmax Pro 24E VUW 242/2-3 R1 (2002-2002) (GC 47-044-10), TURBOmax Pro 24E VUW 242/2-3 R2 (2003-2004) (GC 47-044-10), TURBOmax Pro 24E VUW 242/2-3 R3 (2004-2004) (GC 47-044-10), TURBOmax Pro 28E VUW 282-3 (2000-2001) (GC 47-044-11), TURBOmax Pro 28E VUW 282/2-3 R1 (2002-2002) (GC 47-044-11), TURBOmax Pro 28E VUW 282/2-3 R2 (2003-2004) (GC 47-044-11), TURBOmax Pro 28E VUW 282/2-3 R3 (2004-2004) (GC 47-044-11), VUW 242-3 (GC 47-044-10), VUW 242/2-3 R1 (GC 47-044-10), VUW 242/2-3 R2 (GC 47-044-10), VUW 242/2-3 R3 (GC 47-044-10), VUW 282/2-3 R1 (GC 47-044-11), VUW 282/2-3 R2 (GC 47-044-11), VUW 282/2-3 R3 (GC 47-044-11)
manualmanualVAILLANT appliance manual — TURBOmax Pro 24E VUW 242/2-3 (2001-2002) (GC 47-044-10), TURBOmax Pro 28E VUW 282/2-3 (2001-2002) (GC 47-044-11), VUW 242/2-3 (GC 47-044-10), VUW 282/2-3 (GC 47-044-11)
manualmanualVAILLANT appliance manual — TURBOmax VUW 242/1E (1998-2000) (GC 47-044-02), TURBOmax VUW 282/1E (1998-2000) (GC 47-044-06), VUW 242/1 E (GC 47-044-02), VUW 282/1 E (GC 47-044-06)
manualmanualVAILLANT appliance manual — TURBOmax VUW 242E (1995-1998) (GC 47-044-25), TURBOmax VUW 282E (1995-1998) (GC 47-044-26), VUW 242 E (GC 47-044-25), VUW 282 E (GC 47-044-26)
manualmanualVAILLANT appliance manual — VUI 362-7 (GC 47-044-29), VUI 362-7 R3 (GC 47-044-29), aquaPLUS VUI 362-7 (2002-2005) (GC 47-044-29), aquaPLUS VUI 362-7 R3 (2005-2008) (GC 47-044-29)
manualmanualVAILLANT appliance manual — atmoCRAFT VK 1054/9 (2004-2013), atmoCRAFT VK 1154/9 (2004-2013), atmoCRAFT VK 1304/9 (2004-2013), atmoCRAFT VK 1504/9 (2004-2013), atmoCRAFT VK 1654/9 (2004-2013), atmoCRAFT VK 654/9 (2004-2013), atmoCRAFT VK 754/9 (2004-2013), atmoCRAFT VK 854/9 (2004-2013)
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