Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2 spare parts

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In brief

Instalpunt supplies 121 original parts for the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2, including fans, temperature sensors and NTC sensors, pressure sensors. Order online.

121Spare parts
61In stock
€14.81From
22Types
availableExploded view

Looking for parts for the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2 (boiler)? Below are all 121 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 ecoTEC pro classic VHR CW5 5-3 OT R2

Part	From	Delivery
Fan Vaillant fan for ecoTEC pro and ecoTEC	€205.60	In-stock items usually arrive within 3–5 working days, made-to-order items within 5–7 working days (a longer lead time is shown on the product page).
Ignition part Vaillant electrode for ecoTEC plus and ecoTEC pro etc.	€40.66	In-stock items usually arrive within 3–5 working days, made-to-order items within 5–7 working days (a longer lead time is shown on the product page).
Pressure sensor Vaillant pressure sensor VHR18-22/3C24-28/3C VHR CW3 4/3 for ecoTEC plus and ecoTEC pro etc.	€22.44	In-stock items usually arrive within 3–5 working days, made-to-order items within 5–7 working days (a longer lead time is shown on the product page).
Flow sensor Vaillant flow sensor complete VHR18-22/3C24-28/3C VHR CW3 4/3 for ecoTEC plus and ecoTEC pro etc.	€59.93	In-stock items usually arrive within 3–5 working days, made-to-order items within 5–7 working days (a longer lead time is shown on the product page).
Temperature sensor Vaillant NTC sensor flow/return VHR18-22/3C24-28/3C for ecoTEC plus and ecoTEC pro etc.	€21.37	In-stock items usually arrive within 3–5 working days, made-to-order items within 5–7 working days (a longer lead time is shown on the product page).
Pump Vaillant high-efficiency circulation pump for ecoTEC pro	€288.07	In-stock items usually arrive within 3–5 working days, made-to-order items within 5–7 working days (a longer lead time is shown on the product page).
Heat exchanger Vaillant plate heat exchanger 27 plates for e.g. ecoTEC plus VHR 30-34/5-5 0020144601	€137.05	In-stock items usually arrive within 3–5 working days, made-to-order items within 5–7 working days (a longer lead time is shown on the product page).
Display Vaillant display PRO for ecoTEC pro and ecoTEC	€85.63	In-stock items usually arrive within 3–5 working days, made-to-order items within 5–7 working days (a longer lead time is shown on the product page).

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

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Fans for the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2 (2) all Vaillant fans →

Part	Item no. / mfr. no.	Price	Stock
Vaillant fan for ecoTEC pro and ecoTEC	8050323 Mfr. no. 0020181941	€205.60	In stock	View & order
Vaillant wiring harness for ecoTEC pro (e.g. ecoTEC pro classic VHR CW5 5-3 R2) 0020181942	8055324 Mfr. no. 0020181942	€55.64	Made-to-order item	View & order

Temperature sensors and NTC sensors for the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2 (2) all Vaillant temperature sensors and NTC sensors →

Part	Item no. / mfr. no.	Price	Stock
Vaillant NTC sensor plate heat exchanger VHR/3C for ecoTEC pro and ecoTEC plus etc.	8058947 Mfr. no. 103430	€36.37	In stock	View & order
Vaillant NTC sensor flow/return VHR18-22/3C24-28/3C for ecoTEC plus and ecoTEC pro etc.	8058955 Mfr. no. 193592	€21.37	In stock	View & order

Pressure sensors for the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2 (1)

Part	Item no. / mfr. no.	Price	Stock
Vaillant pressure sensor VHR18-22/3C24-28/3C VHR CW3 4/3 for ecoTEC plus and ecoTEC pro etc.	8058957 Mfr. no. 0020059717	€22.44	In stock	View & order

Flow sensors and flow switches for the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2 (1) all Vaillant flow sensors and flow switches →

Part	Item no. / mfr. no.	Price	Stock
Vaillant flow sensor complete VHR18-22/3C24-28/3C VHR CW3 4/3 for ecoTEC plus and ecoTEC pro etc.	8058952 Mfr. no. 178988	€59.93	In stock	View & order

Pumps for the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2 (3) all Vaillant pumps →

Part	Item no. / mfr. no.	Price	Stock
Vaillant high-efficiency pump excl. pump cable for ecoTEC pro (e.g. hrSOLIDE plus VHR 30-34/3-5) 0010030632	80508257 Mfr. no. 0010030632	€318.06	In stock	View & order
Vaillant high-efficiency circulation pump for ecoTEC pro	8056932 Mfr. no. 8000011227	€288.07	In stock	View & order
Vaillant high-efficiency pump excl. pump cable for ecoTEC pro	80502116 Mfr. no. 0010030636	€386.60	In stock	View & order

Heat exchangers for the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2 (2) all Vaillant heat exchangers →

Part	Item no. / mfr. no.	Price	Stock
Vaillant plate heat exchanger 27 plates for e.g. ecoTEC plus VHR 30-34/5-5 0020144601	8050177 Mfr. no. 0020144601	€137.05	In stock	View & order
Vaillant heat exchanger VHR30-34 for ecoTEC plus and ecoTEC pro	8050202 Mfr. no. 0020135133	€582.61	In stock	View & order

Gas valves and gas control for the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2 (1) all Vaillant gas valves and gas control →

Part	Item no. / mfr. no.	Price	Stock
Vaillant gas valve with venturi CW5 for ecoTEC pro	8050887 Mfr. no. 0020183719	€140.26	In stock	View & order

PCBs and controls for the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2 (1) all Vaillant PCBs and controls →

Part	Item no. / mfr. no.	Price	Stock
Vaillant PCB ecoTEC	80501565 Mfr. no. 0010028086	€376.43	In stock	View & order

Ignition and ionisation for the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2 (1) all Vaillant ignition and ionisation →

Part	Item no. / mfr. no.	Price	Stock
Vaillant electrode for ecoTEC plus and ecoTEC pro etc.	8050206 Mfr. no. 0020133816	€40.66	In stock	View & order

Siphons and condensate drains for the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2 (1) all Vaillant siphons and condensate drains →

Part	Item no. / mfr. no.	Price	Stock
Vaillant siphon ecoTEC	8050289 Mfr. no. 0020184119	€43.86	In stock	View & order

Burners for the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2 (2) all Vaillant burners →

Part	Item no. / mfr. no.	Price	Stock
Vaillant burner VHR35-45 for ecoTEC plus and ecoTEC pro etc.	8057000 Mfr. no. 050430	€320.20	In stock	View & order
Vaillant burner plate for e.g. ecoTEC plus VHR 30-34/5-5 R3 0020135118	8050176 Mfr. no. 0020135118	€173.46	In stock	View & order

Displays and controls for the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2 (2) all Vaillant displays and controls →

Part	Item no. / mfr. no.	Price	Stock
Vaillant display PRO for ecoTEC pro and ecoTEC	8050219 Mfr. no. 0020136629	€85.63	In stock	View & order
Vaillant on/off switch knob PRO	8050298 Mfr. no. 0020136641	€28.87	Made-to-order item	View & order

Filters for the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2 (1) all Vaillant filters →

Part	Item no. / mfr. no.	Price	Stock
Vaillant heating strainer complete	8051433 Mfr. no. 179030	€12.80	In stock	View & order

Valves for the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2 (2) all Vaillant valves →

Part	Item no. / mfr. no.	Price	Stock
Vaillant bypass valve assembly	8051484 Mfr. no. 178980	€40.66	In stock	View & order
Vaillant air vent for e.g. hrSOLIDE plus VHR 24-28/3-5 R3 0010033857	80501293 Mfr. no. 0010033857	€44.94	Made-to-order item	View & order

Pressure gauges for the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2 (1) all Vaillant pressure gauges →

Part	Item no. / mfr. no.	Price	Stock
Vaillant pressure gauge for ecoTEC plus and ecoTEC pro etc.	8055028 Mfr. no. 0020144606	€56.71	Made-to-order item	View & order

Electrical parts for the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2 (4) 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	€19.22	In stock	View & order
Vaillant cable gland for e.g. ecoTEC plus VHR 30-34/5-5 R3 0020144603	8050223 Mfr. no. 0020144603	€24.59	Made-to-order item	View & order
Vaillant coding plug PRO e set	8050246 Mfr. no. 0020136646	€50.29	Made-to-order item	View & order
Vaillant strain relief	8051468 Mfr. no. 078533	€48.14	Made-to-order item	View & order

Cables and wiring harnesses for the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2 (5) all Vaillant cables and wiring harnesses →

Part	Item no. / mfr. no.	Price	Stock
Vaillant ignition cable for ecoTEC plus and ecoTEC pro etc.	8050293 Mfr. no. 0020135119	€42.79	In stock	View & order
Vaillant wiring harness for ecoTEC pro and ecoTEC	8050274 Mfr. no. 0020135161	€46.01	In stock	View & order
Vaillant sensor cable for ecoTEC pro	8050343 Mfr. no. 0020135111	€22.44	In stock	View & order
Vaillant power cable	8050249 Mfr. no. 0020135164	€47.08	Made-to-order item	View & order
Vaillant display cable for ecoTEC plus and ecoTEC pro etc.	8050314 Mfr. no. 0020136630	€24.59	Made-to-order item	View & order

Gaskets and seals for the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2 (23) all Vaillant gaskets and seals →

Part	Item no. / mfr. no.	Price	Stock
Vaillant ignition pin gasket VHR for ecoTEC plus and ecoTEC pro etc.	8052535 Mfr. no. 981330	€16.02	In stock	View & order
Vaillant sealing ring C-type (10 pcs) for ecoTEC plus and ecoTEC pro etc.	8051435 Mfr. no. 178969	€20.30	In stock	View & order
Vaillant O-ring siphon cap 5 pcs VHR24-28/3 for ecoTEC plus and ecoTEC pro etc.	8058984 Mfr. no. 0020077919	€26.72	In stock	View & order
Vaillant burner gasket 102 x 59 x 1 VHR1018-2224-28SC3545 for ecoTEC plus and ecoTEC pro etc.	8054355 Mfr. no. 981103	€12.80	In stock	View & order
Vaillant gasket 3/4" (10 pcs) for ecoTEC plus and ecoTEC pro etc.	8052292 Mfr. no. 981140	€17.09	In stock	View & order
Vaillant lip ring 80mm VHR354565	8057020 Mfr. no. 981227	€19.76	In stock	View & order
Vaillant gasket 1/2" (10 pcs) for ecoTEC plus and ecoTEC pro etc.	8057027 Mfr. no. 981142	€16.02	In stock	View & order
Vaillant O-ring (10 pcs) for e.g. hrSOLIDE VHR 24-28 C 981163	8057046 Mfr. no. 981163	€16.02	In stock	View & order
Vaillant O-ring per 10 pcs for e.g. hrSOLIDE plus VHR 24-28/3-5 R3 178991	8051432 Mfr. no. 178991	€24.59	In stock	View & order
Vaillant O-ring per 10 pcs for e.g. hrSOLIDE plus VHR 24-28/3-5 R3 193537	8051461 Mfr. no. 193537	€34.22	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	€36.37	In stock	View & order
Vaillant fan gasket VHR 3/C for ecoTEC plus and ecoTEC pro etc.	8058959 Mfr. no. 193594	€17.09	In stock	View & order
Vaillant O-ring per 10 pcs for e.g. hrSOLIDE plus VHR 24-28/3-5 R3 103415	8051426 Mfr. no. 103415	€31.01	In stock	View & order
Vaillant gasket ring set 10 pcs for ecoTEC plus and ecoTEC pro etc.	8051476 Mfr. no. 193539	€44.94	In stock	View & order
Vaillant O-ring (10 pcs) for e.g. hrSOLIDE plus VHR 24-28/3-5 R3 981165	8057048 Mfr. no. 981165	€21.37	In stock	View & order
Vaillant lip ring air intake pipe VHR1018-2224-28SC3545	8057024 Mfr. no. 981111	€12.80	In stock	View & order
Vaillant seal 10 pcs for e.g. hrSOLIDE plus VHR 24-28/3-5 R3 178986	8053371 Mfr. no. 178986	€24.59	Made-to-order item	View & order
Vaillant lip seal 60mm VC/W/HR/3	8055143 Mfr. no. 981233	€36.37	Made-to-order item	View & order
Vaillant O-ring 10 pcs for e.g. ecoTEC classic VHR 23-28/5-3 R6 0020133834	8050304 Mfr. no. 0020133834	€24.59	Made-to-order item	View & order
Vaillant gasket (10 pcs) for ecoTEC plus and ecoTEC pro etc.	8057034 Mfr. no. 981149	€24.59	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	€23.52	Made-to-order item	View & order
Vaillant gasket for ecoTEC plus and ecoTEC pro etc.	8050296 Mfr. no. 0020039723	€23.52	Made-to-order item	View & order
Vaillant fan gasket for ecoTEC pro and ecoTEC	8050312 Mfr. no. 0020135141	€24.59	Made-to-order item	View & order

Pipes, tubes and hoses for the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2 (13) all Vaillant pipes, tubes and hoses →

Part	Item no. / mfr. no.	Price	Stock
Vaillant connection pipe complete for e.g. hrSOLIDE plus VHR 24-28/3-5 R3 0020068958	8051496 Mfr. no. 0020068958	€57.79	In stock	View & order
Vaillant connection pipe VHR30-34/3-5	8053417 Mfr. no. 0020068957	€49.22	In stock	View & order
Vaillant connection pipe (flow)	8051473 Mfr. no. 179033	€43.86	In stock	View & order
Vaillant connection pipe (return) for e.g. hrSOLIDE plus VHR 24-28/3-5 R3 180999	8051474 Mfr. no. 180999	€44.94	In stock	View & order
Vaillant connection pipe (cold water) for e.g. hrSOLIDE plus VHR 24-28/3-5 R3 117306	8051477 Mfr. no. 117306	€44.94	In stock	View & order
Vaillant connection pipe (hot water)	8051479 Mfr. no. 179034	€49.22	In stock	View & order
Vaillant adapter piece 80/80mm	8050205 Mfr. no. 0020144597	€51.36	In stock	View & order
Vaillant air intake pipe for e.g. ecoTEC classic VHR 23-28/5-3 R6 0020135146	8050282 Mfr. no. 0020135146	€49.22	In stock	View & order
Vaillant condensate hose for ecoTEC plus and ecoTEC pro etc.	8050326 Mfr. no. 0020144602	€19.22	In stock	View & order
Vaillant gas pipe set (top + bottom)	90170618 Mfr. no. 0020231970	€92.06	Made-to-order item	View & order
Vaillant adapter piece for e.g. ecoTEC plus VHR 30-34/5-5 R3 0020144608	8055031 Mfr. no. 0020144608	€25.66	Made-to-order item	View & order
Vaillant adapter piece for e.g. hrSOLIDE plus VHR 24-28/3-5 R3 0020087657	8059566 Mfr. no. 0020087657	€33.16	Made-to-order item	View & order
Vaillant flange gas valve/gas pipe for ecoTEC pro and ecoTEC	8051438 Mfr. no. 0020010868	€47.08	Made-to-order item	View & order

Casing and panels for the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2 (10) all Vaillant casing and panels →

Part	Item no. / mfr. no.	Price	Stock
Vaillant cap 5 pcs VHR354565	8058292 Mfr. no. 147392	€36.37	In stock	View & order
Vaillant diagnostic connector cover	8050301 Mfr. no. 0020136640	€24.59	Made-to-order item	View & order
Vaillant controller cover PRO	8050317 Mfr. no. 0020136634	€25.66	Made-to-order item	View & order
Vaillant case front wall PRO	8050207 Mfr. no. 0020136632	€67.43	Made-to-order item	View & order
Vaillant case rear wall for e.g. ecoTEC plus VHR 30-34/5-5 R3 0020136635	8050233 Mfr. no. 0020136635	€34.22	Made-to-order item	View & order
Vaillant logo plate for e.g. ecoTEC classic VHR 23-28/5-3 R6 0020141347	8050244 Mfr. no. 0020141347	€36.37	Made-to-order item	View & order
Vaillant casing parts side panel	8050168 Mfr. no. 0020144593	€134.90	Made-to-order item	View & order
Vaillant casing parts front panel (PRO)	8050886 Mfr. no. 0020183722	€209.88	Made-to-order item	View & order
Vaillant type designation plate ecoTEC	8050311 Mfr. no. 0020141349	€25.66	Made-to-order item	View & order
Vaillant plate	8058255 Mfr. no. 139438	€12.80	Made-to-order item	View & order

Insulation for the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2 (2) all Vaillant insulation →

Part	Item no. / mfr. no.	Price	Stock
Vaillant burner plate insulation	8051481 Mfr. no. 193595	€58.32	In stock	View & order
Vaillant insulation 16mm with clips	8055024 Mfr. no. 0020143489	€48.68	In stock	View & order

Fixing material for the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2 (33) all Vaillant fixing material →

Part	Item no. / mfr. no.	Price	Stock
Vaillant mounting plate plate heat exchanger	8051502 Mfr. no. 178965	€135.97	In stock	View & order
Vaillant screw 10 pcs burner VHR Solide for ecoTEC plus and ecoTEC pro etc.	8055903 Mfr. no. 105900	€25.66	In stock	View & order
Vaillant retainer for e.g. hrSOLIDE plus VHR 24-28/3-5 R3 0020107694	8050116 Mfr. no. 0020107694	€28.87	In stock	View & order
Vaillant holder complete for e.g. hrSOLIDE plus VHR 24-28/3-5 R3 180987	8051428 Mfr. no. 180987	€23.52	In stock	View & order
Vaillant screw 48 x 95 drill hole 4 mm	8050117 Mfr. no. 0020107695	€23.52	Made-to-order item	View & order
Vaillant screw 10 pcs VHR354565	8058079 Mfr. no. 105839	€32.09	Made-to-order item	View & order
Vaillant Torx screw M6 x 20 mm per 10 pcs	8051431 Mfr. no. 193597	€32.09	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	€39.58	In stock	View & order
Vaillant screw complete set 10 pcs	8051549 Mfr. no. 509685	€24.59	Made-to-order item	View & order
Vaillant screw 0020136643, 10 pcs	8050297 Mfr. no. 0020136643	€23.52	Made-to-order item	View & order
Vaillant screw 0020133833, 10 pcs	8050305 Mfr. no. 0020133833	€23.52	Made-to-order item	View & order
Vaillant screw 0020133828, 10 pcs	8050316 Mfr. no. 0020133828	€23.52	Made-to-order item	View & order
Vaillant screw (set)	8050421 Mfr. no. 105904	€25.66	Made-to-order item	View & order
Vaillant screw 0020198257, 10 pcs	80500054 Mfr. no. 0020198257	€24.59	Made-to-order item	View & order
Vaillant spacer for e.g. ecoTEC plus VHR 30-34/5-5 R3 193584	8059544 Mfr. no. 193584	€25.66	Made-to-order item	View & order
Vaillant retaining spring for e.g. hrSOLIDE plus VHR 24-28/3-5 R3 178981	8051422 Mfr. no. 178981	€25.66	Made-to-order item	View & order
Vaillant retaining spring for e.g. hrSOLIDE plus VHR 24-28/3-5 R3 178966	8051421 Mfr. no. 178966	€25.66	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	€48.14	Made-to-order item	View & order
Vaillant clip 5 pcs for e.g. ecoTEC plus VHR 30-34/5-5 R3 0020144599	8050243 Mfr. no. 0020144599	€28.87	Made-to-order item	View & order
Vaillant grommet per 10 pcs for e.g. hrSOLIDE plus VHR 24-28/3-5 R3 509120	8051469 Mfr. no. 509120	€52.43	Made-to-order item	View & order
Vaillant holder for e.g. ecoTEC plus VHR 30-34/5-5 R3 0020135114	8050241 Mfr. no. 0020135114	€35.29	Made-to-order item	View & order
Vaillant holder for e.g. ecoTEC plus VHR 30-34/5-5 R3 0020144613	8050319 Mfr. no. 0020144613	€44.94	Made-to-order item	View & order
Vaillant holder complete for e.g. hrSOLIDE plus VHR 24-28/3-5 R3 178984	8051485 Mfr. no. 178984	€76.00	Made-to-order item	View & order
Vaillant case holder 2 pcs	8050308 Mfr. no. 0020144611	€24.59	Made-to-order item	View & order
Vaillant air intake pipe holder VHR/5 25-38	8050315 Mfr. no. 0020135151	€24.59	Made-to-order item	View & order
Vaillant holder per 2 pcs	8051413 Mfr. no. 193536	€23.52	Made-to-order item	View & order
Vaillant name plate holder	8050227 Mfr. no. 0020141348	€31.01	Made-to-order item	View & order
Vaillant clamping band for e.g. ecoTEC plus VHR 30-34/5-5 R3 0020135121	8050303 Mfr. no. 0020135121	€23.52	Made-to-order item	View & order
Vaillant nut 5 pcs for e.g. hrSOLIDE VHR 24-28 C 0020026537	8059506 Mfr. no. 0020026537	€27.80	Made-to-order item	View & order
Vaillant nut 3/4	8050225 Mfr. no. 0020144600	€26.72	Made-to-order item	View & order
Vaillant ring 10 pcs for e.g. ecoTEC plus VHR 30-34/5-5 R3 0020135152	8050302 Mfr. no. 0020135152	€23.52	Made-to-order item	View & order
Vaillant plug for e.g. hrPRO CW 3/3 0020020488	8059490 Mfr. no. 0020020488	€24.59	Made-to-order item	View & order
Vaillant plug for e.g. ecoTEC plus VHR 30-34/5-5 R3 0020144604	8050222 Mfr. no. 0020144604	€23.52	Made-to-order item	View & order

Other parts for the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2 (8)

Part	Item no. / mfr. no.	Price	Stock
Vaillant gasket set I for ecoTEC plus and ecoTEC pro etc.	8055580 Mfr. no. 0020025929	€22.44	In stock	View & order
Vaillant three-way valve VHR CW34/3 ecoTEC plus R4	8058951 Mfr. no. 0020020015	€132.23	In stock	View & order
Vaillant VR33 OpenTherm module	80599971 Mfr. no. 8000020151	€77.06	In stock	View & order
Vaillant water strainer VCW254-255/3CWK245/3	8056622 Mfr. no. 074514	€16.02	In stock	View & order
Vaillant sight glass VHR1018-2224-283545	8057022 Mfr. no. 161245	€18.16	In stock	View & order
Vaillant connection for e.g. ecoTEC plus VHR 30-34/5-5 R3 0020140559	8050284 Mfr. no. 0020140559	€57.79	Made-to-order item	View & order
Vaillant retainer for e.g. ecoTEC plus VHR 30-34/5-5 R3 0020135117	8050318 Mfr. no. 0020135117	€25.66	Made-to-order item	View & order
Vaillant compression fitting 22 x 22	8050327 Mfr. no. 083435	€28.87	Made-to-order item	View & order

Exploded views of the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2

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

Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2 error codes

Is there a code on the display? For each code: what it means for this series, what you can check yourself and which part is usually needed.

Fault code on your Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2? 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 ecoTEC pro classic VHR CW5 5-3 OT R2?

The catalogue lists 121 original parts for the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2, including fans, temperature sensors and NTC sensors, pressure sensors, flow sensors and flow switches. All parts are listed above, grouped by type, with part number and price.

How much does a fan for the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2 cost?

The fans for this model cost between €55.64 and €205.60 incl. VAT. Check the table "Fans" above for the right part number.

Are the parts for the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2 in stock?

61 of the 121 parts are in stock; shipping €9.95 to Austria, Denmark, Italy, Spain and Sweden and €12.95 to the other EU countries, free from €199, 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 ecoTEC pro classic VHR CW5 5-3 OT R2?

Search for the part by part number or use the exploded view of the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2.

Are these original Vaillant parts?

Yes. All 121 parts in this list are original manufacturer parts for the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2, delivered with the correct part number.

How much do parts for the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2 cost?

Parts for the Vaillant ecoTEC pro classic VHR CW5 5-3 OT R2 range from €12.80 to €582.61 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.