Vaillant ecoFIT pro VUW 256/6-3 spare parts

In brief

Instalpunt supplies 99 original parts for the Vaillant ecoFIT pro VUW 256/6-3, including fans, pumps, heat exchangers. Order online.

99Spare parts
28In stock
€5.89From
18Types
availableExploded view

Looking for parts for the Vaillant ecoFIT pro VUW 256/6-3 (boiler)? Below are all 99 original parts, grouped by part type, with the matching exploded view. Choose a type to jump straight to the right table.

View the interactive exploded view →

Quick left to the right part for the Vaillant ecoFIT pro VUW 256/6-3

Part	From	Delivery
Ignition part Vaillant igniter for e.g. ecoFIT pro VUW 256/6-3 091258	€32.95	In stock
Pump Vaillant pump motor for ecoTEC	€300.95	In stock
Display Vaillant display for e.g. ecoFIT pro VUW 256/6-3 0020231256	€60.95	In stock

Prices incl. VAT, taken directly from our checkout. Below is the complete parts list for this model.

Installer or self-employed engineer? Create a business account: prices excl. VAT and invoices in your company name.

Fans 1
Pumps 1
Heat exchangers 2
Gas valves and gas control 2
PCBs and controls 1
Diverter valves and hydroblocks 3
Ignition and ionisation 2
Siphons and condensate drains 2
Burners 1
Displays and controls 1
Filters 1
Valves 3
Electrical parts 1
Cables and wiring harnesses 6
Gaskets and seals 22
Pipes, tubes and hoses 18
Casing and panels 6
Fixing material 24
Other parts 2

Fans for the Vaillant ecoFIT pro VUW 256/6-3 (1) all Vaillant fans →

Part	Item no. / mfr. no.	Price	Stock
Vaillant fan burner door for e.g. ecoFIT pro VUW 256/6-3 0020195454	80501306 Mfr. no. 0020195454	€255.95	Made-to-order item	View & order

Pumps for the Vaillant ecoFIT pro VUW 256/6-3 (1) all Vaillant pumps →

Part	Item no. / mfr. no.	Price	Stock
Vaillant pump motor for ecoTEC	80500513 Mfr. no. 0020231142	€300.95	In stock	View & order

Heat exchangers for the Vaillant ecoFIT pro VUW 256/6-3 (2) all Vaillant heat exchangers →

Part	Item no. / mfr. no.	Price	Stock
Vaillant plate heat exchanger for e.g. ecoFIT pro VUW 256/6-3 0020231140	80501303 Mfr. no. 0020231140	€110.95	Made-to-order item	View & order
Vaillant heat exchanger for e.g. ecoFIT pro VUW 256/6-3 0020195460	80501308 Mfr. no. 0020195460	€412.95	Made-to-order item	View & order

Gas valves and gas control for the Vaillant ecoFIT pro VUW 256/6-3 (2) all Vaillant gas valves and gas control →

Part	Item no. / mfr. no.	Price	Stock
Vaillant gas valve (-30Pa)	80501304 Mfr. no. 0010033854	€193.95	In stock	View & order
Vaillant gas valve for e.g. ecoFIT pro VUW 256/6-3 0020211099	80501298 Mfr. no. 0020211099	€49.95	Made-to-order item	View & order

PCBs and controls for the Vaillant ecoFIT pro VUW 256/6-3 (1) all Vaillant PCBs and controls →

Part	Item no. / mfr. no.	Price	Stock
Vaillant PCB for ecoTEC	80599905 Mfr. no. 0010047387	€122.95	In stock	View & order

Diverter valves and hydroblocks for the Vaillant ecoFIT pro VUW 256/6-3 (3) all Vaillant diverter valves and hydroblocks →

Part	Item no. / mfr. no.	Price	Stock
Vaillant 3-way valve for e.g. ecoTEC plus VHR 35/40 CS/1-5 0020213146	80500324 Mfr. no. 0020213146	€93.95	In stock	View & order
Vaillant hydro block for e.g. ecoTEC pure VHR 18-24/7-2 0020213145	80500204 Mfr. no. 0020213145	€30.95	Made-to-order item	View & order
Vaillant hydro block R-DIN flow for ecoTEC	80500325 Mfr. no. 0020213152	€66.95	Made-to-order item	View & order

Ignition and ionisation for the Vaillant ecoFIT pro VUW 256/6-3 (2) all Vaillant ignition and ionisation →

Part	Item no. / mfr. no.	Price	Stock
Vaillant electrode ignition and monitoring	80501286 Mfr. no. 0020195481	€40.95	In stock	View & order
Vaillant igniter for e.g. ecoFIT pro VUW 256/6-3 091258	80501292 Mfr. no. 091258	€32.95	In stock	View & order

Siphons and condensate drains for the Vaillant ecoFIT pro VUW 256/6-3 (2) all Vaillant siphons and condensate drains →

Part	Item no. / mfr. no.	Price	Stock
Vaillant siphon for e.g. ecoFIT pro VUW 256/6-3 0020231193	80501291 Mfr. no. 0020231193	€38.95	In stock	View & order
Vaillant condensate drain for e.g. ecoFIT pro VUW 256/6-3 0020195478	80501295 Mfr. no. 0020195478	€49.95	Made-to-order item	View & order

Burners for the Vaillant ecoFIT pro VUW 256/6-3 (1) all Vaillant burners →

Part	Item no. / mfr. no.	Price	Stock
Vaillant burner for e.g. ecoFIT pro VUW 256/6-3 0020195487	80501302 Mfr. no. 0020195487	€215.95	Made-to-order item	View & order

Displays and controls for the Vaillant ecoFIT pro VUW 256/6-3 (1) all Vaillant displays and controls →

Part	Item no. / mfr. no.	Price	Stock
Vaillant display for e.g. ecoFIT pro VUW 256/6-3 0020231256	80501299 Mfr. no. 0020231256	€60.95	In stock	View & order

Filters for the Vaillant ecoFIT pro VUW 256/6-3 (1) all Vaillant filters →

Part	Item no. / mfr. no.	Price	Stock
Vaillant heating strainer complete	8051433 Mfr. no. 179030	€11.95	In stock	View & order

Valves for the Vaillant ecoFIT pro VUW 256/6-3 (3) all Vaillant valves →

Part	Item no. / mfr. no.	Price	Stock
Vaillant bypass valve assembly	8051484 Mfr. no. 178980	€37.95	In stock	View & order
Vaillant air vent for e.g. hrSOLIDE plus VHR 24-28/3-5 R3 0010033857	80501293 Mfr. no. 0010033857	€41.95	Made-to-order item	View & order
Vaillant water flow limiter	80501279 Mfr. no. 0010033858	€42.95	Made-to-order item	View & order

Electrical parts for the Vaillant ecoFIT pro VUW 256/6-3 (1) all Vaillant electrical parts →

Part	Item no. / mfr. no.	Price	Stock
Vaillant fuse 2.0A T2H 10 pcs for ecoTEC plus and ecoTEC pro etc.	8050127 Mfr. no. 0020067507	€17.95	In stock	View & order

Cables and wiring harnesses for the Vaillant ecoFIT pro VUW 256/6-3 (6) all Vaillant cables and wiring harnesses →

Part	Item no. / mfr. no.	Price	Stock
Vaillant wiring harness for ecoTEC (e.g. ecoTEC pure VHR 18-24/7-2) 0020211941	80500202 Mfr. no. 0020211941	€52.95	Made-to-order item	View & order
Vaillant wiring harness for ecoTEC (e.g. ecoTEC pure VHR 18-24/7-2) 0020231145	80500211 Mfr. no. 0020231145	€31.95	Made-to-order item	View & order
Vaillant wiring harness for e.g. ecoFIT pro VUW 256/6-3 0020231117	80501264 Mfr. no. 0020231117	€22.95	Made-to-order item	View & order
Vaillant wiring harness for e.g. ecoFIT pro VUW 256/6-3 0020213909	80501281 Mfr. no. 0020213909	€25.95	Made-to-order item	View & order
Vaillant wiring harness for e.g. ecoFIT pro VUW 256/6-3 0010033856	80501282 Mfr. no. 0010033856	€31.95	Made-to-order item	View & order
Vaillant wiring harness for e.g. ecoFIT pro VUW 256/6-3 0020231194	80501287 Mfr. no. 0020231194	€52.95	Made-to-order item	View & order

Gaskets and seals for the Vaillant ecoFIT pro VUW 256/6-3 (22) all Vaillant gaskets and seals →

Part	Item no. / mfr. no.	Price	Stock
Vaillant sealing ring C-type (10 pcs) for ecoTEC plus and ecoTEC pro etc.	8051435 Mfr. no. 178969	€18.95	In stock	View & order
Vaillant burner door gasket	80501297 Mfr. no. 0020195459	€38.95	In stock	View & order
Vaillant sealing ring per 10 pcs for ecoTEC plus and ecoTEC pro etc. (e.g. hrSOLIDE plus VHR 24-28/3-5 R3) 193535	8051467 Mfr. no. 193535	€33.95	In stock	View & order
Vaillant sealing ring 10 pcs MAG11-2/014-2/017-2/0	8056699 Mfr. no. 108588	€10.95	Made-to-order item	View & order
Vaillant O-ring per 10 pcs for e.g. hrSOLIDE plus VHR 24-28/3-5 R3 103415	8051426 Mfr. no. 103415	€18.95	In stock	View & order
Vaillant air intake pipe gasket for ecoTEC plus and ecoTEC	8050224 Mfr. no. 0020135149	€14.95	In stock	View & order
Vaillant O-ring for e.g. ecoTEC plus VHR 35/40 CS/1-5 0020231195	80500212 Mfr. no. 0020231195	€26.95	In stock	View & order
Vaillant electrode gasket	80501258 Mfr. no. 0020195491	€14.95	In stock	View & order
Vaillant gasket for e.g. ecoFIT pro VUW 256/6-3 0020195477	80501260 Mfr. no. 0020195477	€10.95	In stock	View & order
Vaillant gasket for e.g. ecoFIT pro VUW 256/6-3 0020195476	80501268 Mfr. no. 0020195476	€11.95	In stock	View & order
Vaillant condensate drain gasket	80501288 Mfr. no. 0020195479	€33.95	In stock	View & order
Vaillant O-ring 10 pcs for e.g. uniTOWER VIH QW 190/1 E (0010019709) 0020107564	80500016 Mfr. no. 0020107564	€21.95	Made-to-order item	View & order
Vaillant O-ring 10 pcs for e.g. ecoTEC pure VHR 18-24/7-2 0020195504	80500049 Mfr. no. 0020195504	€23.95	Made-to-order item	View & order
Vaillant O-ring 10 pcs for e.g. ecoTEC plus VHR 35/40 CS/1-5 0020213147	80500068 Mfr. no. 0020213147	€21.95	Made-to-order item	View & order
Vaillant O-ring 10 pcs for e.g. ecoTEC pure VHR 18-24/7-2 0020213151	80500070 Mfr. no. 0020213151	€30.95	Made-to-order item	View & order
Vaillant O-ring 10 pcs for e.g. ecoTEC pure VHR 18-24/7-2 0020213154	80500071 Mfr. no. 0020213154	€27.95	Made-to-order item	View & order
Vaillant O-ring 10 pcs for e.g. ecoTEC plus VHR 35/40 CS/1-5 0020213160	80500075 Mfr. no. 0020213160	€24.95	Made-to-order item	View & order
Vaillant gasket for ecoTEC	80500048 Mfr. no. 0020195462	€21.95	Made-to-order item	View & order
Vaillant gasket G 3/4 10 pcs	80500634 Mfr. no. 0020073878	€22.95	Made-to-order item	View & order
Vaillant O-ring for e.g. ecoTEC plus VHR 35/40 CS/1-5 0020166927	8050484 Mfr. no. 0020166927	€21.95	Made-to-order item	View & order
Vaillant O-ring for e.g. aroTHERM VWZ MPS 40 0020166935	8052891 Mfr. no. 0020166935	€21.95	Made-to-order item	View & order
Vaillant sealing ring per 10 pcs for ecoTEC plus and ecoTEC pro etc. (e.g. hrSOLIDE plus VHR 24-28/3-5 R3) 178993	8051419 Mfr. no. 178993	€21.95	Made-to-order item	View & order

Pipes, tubes and hoses for the Vaillant ecoFIT pro VUW 256/6-3 (18) all Vaillant pipes, tubes and hoses →

Part	Item no. / mfr. no.	Price	Stock
Vaillant adapter piece 80/80mm	8050205 Mfr. no. 0020144597	€47.95	In stock	View & order
Vaillant compression coupling G3/4 x 22	8050663 Mfr. no. 0020148026	€20.95	In stock	View & order
Vaillant compression coupling G 1/2 D15	80500258 Mfr. no. 0020259116	€18.95	In stock	View & order
Vaillant compression coupling G3/4 D15	80500257 Mfr. no. 0020259115	€20.95	In stock	View & order
Vaillant pipe for e.g. ecoTEC pure VHR 18-24/7-2 0020213153	80500205 Mfr. no. 0020213153	€27.95	Made-to-order item	View & order
Vaillant pipe pump-PHE for ecoTEC	80500203 Mfr. no. 0020211944	€26.95	Made-to-order item	View & order
Vaillant flow pipe	80500322 Mfr. no. 0020211943	€68.95	Made-to-order item	View & order
Vaillant nipple G3/4 for e.g. ecoTEC pure VHR 18-24/7-2 0020213161	80500076 Mfr. no. 0020213161	€27.95	Made-to-order item	View & order
Vaillant nipple G3/4 for e.g. ecoTEC pure VHR 18-24/7-2 0020213162	80500077 Mfr. no. 0020213162	€26.95	Made-to-order item	View & order
Vaillant hose for e.g. ecoTEC plus VHR 35/40 CS/1-5 0020215129	80500895 Mfr. no. 0020215129	€23.95	Made-to-order item	View & order
Vaillant bend for e.g. ecoFIT pro VUW 256/6-3 0020231132	80501271 Mfr. no. 0020231132	€24.95	Made-to-order item	View & order
Vaillant bend for e.g. ecoFIT pro VUW 256/6-3 0020211097	80501274 Mfr. no. 0020211097	€25.95	Made-to-order item	View & order
Vaillant adapter piece for e.g. ecoFIT pro VUW 256/6-3 0020195485	80501283 Mfr. no. 0020195485	€49.95	Made-to-order item	View & order
Vaillant pipe for e.g. ecoFIT pro VUW 256/6-3 0020237678	80501284 Mfr. no. 0020237678	€47.95	Made-to-order item	View & order
Vaillant pipe for e.g. ecoFIT pro VUW 256/6-3 0020237680	80501285 Mfr. no. 0020237680	€48.95	Made-to-order item	View & order
Vaillant flue pipe for e.g. ecoFIT pro VUW 256/6-3 0020195474	80501289 Mfr. no. 0020195474	€55.95	Made-to-order item	View & order
Vaillant gas pipe for e.g. ecoFIT pro VUW 256/6-3 0020237679	80501294 Mfr. no. 0020237679	€54.95	Made-to-order item	View & order
Vaillant air intake pipe for e.g. ecoFIT pro VUW 256/6-3 0010033855	80501300 Mfr. no. 0010033855	€66.95	Made-to-order item	View & order

Casing and panels for the Vaillant ecoFIT pro VUW 256/6-3 (6) all Vaillant casing and panels →

Part	Item no. / mfr. no.	Price	Stock
Vaillant pump housing for ecoTEC	80500329 Mfr. no. 0020231147	€123.95	Made-to-order item	View & order
Vaillant bracket for e.g. ecoTEC pure VHR 18-24/7-2 0020213159	80500074 Mfr. no. 0020213159	€26.95	Made-to-order item	View & order
Vaillant protective cap (5 pcs)	80500892 Mfr. no. 0020195490	€24.95	Made-to-order item	View & order
Vaillant side panel for e.g. ecoFIT pro VUW 256/6-3 0010033861	80501277 Mfr. no. 0010033861	€45.95	Made-to-order item	View & order
Vaillant front panel for e.g. ecoFIT pro VUW 256/6-3 0010033860	80501296 Mfr. no. 0010033860	€62.95	Made-to-order item	View & order
Vaillant case for e.g. ecoFIT pro VUW 256/6-3 0010033859	80501301 Mfr. no. 0010033859	€85.95	Made-to-order item	View & order

Fixing material for the Vaillant ecoFIT pro VUW 256/6-3 (24) all Vaillant fixing material →

Part	Item no. / mfr. no.	Price	Stock
Vaillant retainer for e.g. hrSOLIDE plus VHR 24-28/3-5 R3 0020107694	8050116 Mfr. no. 0020107694	€26.95	In stock	View & order
Vaillant screw 0020073877, 10 pcs	8055017 Mfr. no. 0020073877	€10.95	Made-to-order item	View & order
Vaillant retaining spring per 10 pcs for e.g. hrSOLIDE plus VHR 24-28/3-5 R3 103417	8051439 Mfr. no. 103417	€36.95	In stock	View & order
Vaillant nut 3 pcs	80500072 Mfr. no. 0020213157	€10.95	Made-to-order item	View & order
Vaillant screw 0020160125, 10 pcs	80500046 Mfr. no. 0020160125	€22.95	Made-to-order item	View & order
Vaillant screw 0020213148, 10 pcs	80500069 Mfr. no. 0020213148	€10.95	Made-to-order item	View & order
Vaillant screw 0020213158, 10 pcs	80500073 Mfr. no. 0020213158	€23.95	Made-to-order item	View & order
Vaillant screw 0020213163, 10 pcs	80500078 Mfr. no. 0020213163	€10.95	Made-to-order item	View & order
Vaillant pump screw 10 pcs for ecoTEC	80500084 Mfr. no. 0020231148	€29.95	Made-to-order item	View & order
Vaillant plug for e.g. ecoTEC plus VHR 35/40 CS/1-5 0020213894	80500079 Mfr. no. 0020213894	€21.95	Made-to-order item	View & order
Vaillant screw 0020195473, 10 pcs	80500715 Mfr. no. 0020195473	€22.95	Made-to-order item	View & order
Vaillant screw 0020195593, 10 pcs	80500893 Mfr. no. 0020195593	€21.95	Made-to-order item	View & order
Vaillant screw 0020195483, 10 pcs	80501261 Mfr. no. 0020195483	€21.95	Made-to-order item	View & order
Vaillant screw 0020195482, 10 pcs	80501262 Mfr. no. 0020195482	€22.95	Made-to-order item	View & order
Vaillant screw 0020195503, 10 pcs	80501263 Mfr. no. 0020195503	€30.95	Made-to-order item	View & order
Vaillant plug for e.g. ecoFIT pro VUW 256/6-3 0020231123	80501265 Mfr. no. 0020231123	€26.95	Made-to-order item	View & order
Vaillant spacer 2 pcs for e.g. ecoFIT pro VUW 256/6-3 0020237675	80501266 Mfr. no. 0020237675	€23.95	Made-to-order item	View & order
Vaillant screw 0020195488, 10 pcs	80501269 Mfr. no. 0020195488	€23.95	Made-to-order item	View & order
Vaillant holder for e.g. ecoFIT pro VUW 256/6-3 0020211084	80501272 Mfr. no. 0020211084	€28.95	Made-to-order item	View & order
Vaillant screw 0020195489, 10 pcs	80501275 Mfr. no. 0020195489	€43.95	Made-to-order item	View & order
Vaillant retaining spring per 10 pcs for e.g. hrSOLIDE plus VHR 24-28/3-5 R3 178992	8051436 Mfr. no. 178992	€44.95	Made-to-order item	View & order
Vaillant clip (10 pcs) for e.g. ecoTEC plus VHR 35/40 CS/1-5 0020174521	8051602 Mfr. no. 0020174521	€25.95	Made-to-order item	View & order
Vaillant nut 5 pcs for e.g. hrSOLIDE VHR 24-28 C 0020026537	8059506 Mfr. no. 0020026537	€25.95	Made-to-order item	View & order
Vaillant plug for e.g. hrPRO CW 3/3 0020020488	8059490 Mfr. no. 0020020488	€22.95	Made-to-order item	View & order

Other parts for the Vaillant ecoFIT pro VUW 256/6-3 (2)

Part	Item no. / mfr. no.	Price	Stock
Vaillant water strainer VCW254-255/3CWK245/3	8056622 Mfr. no. 074514	€14.95	In stock	View & order
Vaillant impeller for e.g. ecoTEC plus VHR 35/40 CS/1-5 0020211945	80500323 Mfr. no. 0020211945	€34.45	Made-to-order item	View & order

Exploded views of the Vaillant ecoFIT pro VUW 256/6-3

Click an exploded view to enlarge it. The position numbers are shown next to each part.

Fault code on your Vaillant ecoFIT pro VUW 256/6-3? This is the part type involved

Common Vaillant fault codes and the part type that is usually the cause; the parts for this model are listed above. All codes explained: Vaillant fault codes.

Code	What is going on	Part type
F.01	Ignition fault (no flame detection), no gas / gas tap closed, no ignition	Ignition and ionisation
F.037	Obstruction in the product's air duct, fan motor defective or not connected, connection between the main PCB and the fan PCB damaged or interrupted	Fans
F.04	Fan fault	Fans
F.042	The product coding resistor is defective or missing, fan motor defective or not connected, plug X25 not connected or connected incorrectly	Fans
F.042	Break in the heat exchanger wiring harness	Heat exchangers
F.05	High-limit fault, flow temperature too high (pump not running, but has voltage)	Pumps

For guidance only: the same code can have a different cause depending on the situation.

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Frequently asked questions

Which parts are available for the Vaillant ecoFIT pro VUW 256/6-3?

The catalogue lists 99 original parts for the Vaillant ecoFIT pro VUW 256/6-3, including fans, pumps, heat exchangers, gas valves and gas control. All parts are listed above, grouped by type, with part number and price.

How much does a fan for the Vaillant ecoFIT pro VUW 256/6-3 cost?

The fans for this model cost €296.64 incl. VAT. Check the table "Fans" above for the right part number.

Are the parts for the Vaillant ecoFIT pro VUW 256/6-3 in stock?

28 of the 99 parts are in stock; shipping to EU countries from €12.95 (€16.95 for more distant countries), usually 3–5 working days. Parts marked "Made-to-order item" are ordered specially for you; the delivery time is shown on the product page.

How do I know which part I need for the Vaillant ecoFIT pro VUW 256/6-3?

Search for the part by part number or use the exploded view of the Vaillant ecoFIT pro VUW 256/6-3.

Are these original Vaillant parts?

Yes. All 99 parts in this list are original manufacturer parts for the Vaillant ecoFIT pro VUW 256/6-3, supplied through the official technical wholesale channel and with the correct part number.

How much do parts for the Vaillant ecoFIT pro VUW 256/6-3 cost?

Parts for the Vaillant ecoFIT pro VUW 256/6-3 range from €5.89 to €535.79 incl. VAT. The exact price of each part is shown in the tables above.

Can I return a part?

As a consumer you have a 14-day right of withdrawal. You may unpack and inspect the part; do not install or connect it. For a part that has been installed, connected or damaged we deduct the diminished value, up to the full price for circuit boards.