Vaillant Combi boiler Turbo CWK 24-12 E SO28 spare parts

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In brief

Instalpunt supplies 136 original parts for the Vaillant Combi boiler Turbo CWK 24-12 E SO28, including fans, temperature sensors and NTC sensors, pressure switches and differential pressure switches. Order online.

136Spare parts
21In stock
€13.57From
19Types
availableExploded view

Looking for parts for the Vaillant Combi boiler Turbo CWK 24-12 E SO28 (boiler)? Below are all 136 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 Combi boiler Turbo CWK 24-12 E SO28

Part	From	Delivery
Fan Vaillant fan VC/W180-242-282E	€248.44	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).
Ignition part Vaillant monitoring electrode VC/W110-282E	€37.44	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).
Temperature sensor Vaillant NTC sensor VC/W T3110-282VU/WVHR	€52.43	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 pump excl. pump cable for e.g. boiler VC 254/2 XE 0010032791	€322.34	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.

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

Fans for the Vaillant Combi boiler Turbo CWK 24-12 E SO28 (1) all Vaillant fans →

Part	Item no. / mfr. no.	Price	Stock
Vaillant fan VC/W180-242-282E	8051880 Mfr. no. 190119	€248.44	In stock	View & order

Temperature sensors and NTC sensors for the Vaillant Combi boiler Turbo CWK 24-12 E SO28 (1) all Vaillant temperature sensors and NTC sensors →

Part	Item no. / mfr. no.	Price	Stock
Vaillant NTC sensor VC/W T3110-282VU/WVHR	8052090 Mfr. no. 252805	€52.43	In stock	View & order

Pressure switches and differential pressure switches for the Vaillant Combi boiler Turbo CWK 24-12 E SO28 (2) all Vaillant pressure switches and differential pressure switches →

Part	Item no. / mfr. no.	Price	Stock
Vaillant differential pressure switch gas section VC/W T3110-282E	8051700 Mfr. no. 151017	€63.14	Made-to-order item	View & order
Vaillant air pressure switch 45-28pa VC/W112142182185242245282E	8050730 Mfr. no. 050521	€152.04	Made-to-order item	View & order

Pumps for the Vaillant Combi boiler Turbo CWK 24-12 E SO28 (3) all Vaillant pumps →

Part	Item no. / mfr. no.	Price	Stock
Vaillant diaphragm pump cv/W110-282E	8051730 Mfr. no. 160108	€200.24	Made-to-order item	View & order
Vaillant high-efficiency pump excluding pump cable for e.g. boiler VC 280 XE (TTB) 0010032797	80508269 Mfr. no. 0010032797	€298.78	Made-to-order item	View & order
Vaillant high-efficiency pump excl. pump cable for e.g. boiler VC 254/2 XE 0010032791	80508273 Mfr. no. 0010032791	€322.34	In stock	View & order

Heat exchangers for the Vaillant Combi boiler Turbo CWK 24-12 E SO28 (2) all Vaillant heat exchangers →

Part	Item no. / mfr. no.	Price	Stock
Vaillant plate heat exchanger loose VCW180-282E	8056582 Mfr. no. 064946	€167.04	Made-to-order item	View & order
Vaillant DHW coil (plate heat exchanger) VCW180-282E CWK24-12	8050870 Mfr. no. 065034	€297.71	Made-to-order item	View & order

Gas valves and gas control for the Vaillant Combi boiler Turbo CWK 24-12 E SO28 (1) all Vaillant gas valves and gas control →

Part	Item no. / mfr. no.	Price	Stock
Vaillant venturi 240 MAG250/7TZW350/9/12325/9 VCW180-245 012837	8050330 Mfr. no. 0020107791	€33.16	Made-to-order item	View & order

PCBs and controls for the Vaillant Combi boiler Turbo CWK 24-12 E SO28 (1) all Vaillant PCBs and controls →

Part	Item no. / mfr. no.	Price	Stock
Vaillant ignition PCB VC/W110-282E	8051200 Mfr. no. 100555	€285.92	Made-to-order item	View & order

Diverter valves and hydroblocks for the Vaillant Combi boiler Turbo CWK 24-12 E SO28 (2) all Vaillant diverter valves and hydroblocks →

Part	Item no. / mfr. no.	Price	Stock
Vaillant bypass 2.5 m VC/W T3w 110-282E 180928	8051670 Mfr. no. 150216	€71.71	Made-to-order item	View & order
Vaillant bypass 3.5 m VC/W T3w 110-282E	8051680 Mfr. no. 150217	€57.79	Made-to-order item	View & order

Ignition and ionisation for the Vaillant Combi boiler Turbo CWK 24-12 E SO28 (3) all Vaillant ignition and ionisation →

Part	Item no. / mfr. no.	Price	Stock
Vaillant monitoring electrode VC/W110-282E	8051100 Mfr. no. 090649	€37.44	In stock	View & order
Vaillant ignition electrode VC/W 110-282E	8051110 Mfr. no. 090673	€61.00	In stock	View & order
Vaillant ignition transformer VC/W110-282E	8051150 Mfr. no. 091235	€155.26	Made-to-order item	View & order

Burners for the Vaillant Combi boiler Turbo CWK 24-12 E SO28 (1) all Vaillant burners →

Part	Item no. / mfr. no.	Price	Stock
Vaillant chamber assembly VCW221-282E 040468	8050495 Mfr. no. 040468	€71.71	Made-to-order item	View & order

Displays and controls for the Vaillant Combi boiler Turbo CWK 24-12 E SO28 (1) all Vaillant displays and controls →

Part	Item no. / mfr. no.	Price	Stock
Vaillant knob control PCB VCW 180-242E	8051626 Mfr. no. 143967	€11.74	Made-to-order item	View & order

Valves for the Vaillant Combi boiler Turbo CWK 24-12 E SO28 (4) all Vaillant valves →

Part	Item no. / mfr. no.	Price	Stock
Vaillant automatic air vent	8050850 Mfr. no. 061707	€41.72	In stock	View & order
Vaillant safety relief valve 23 ato VC-VCW 110-282E	8050053 Mfr. no. 0020107722	€26.72	Made-to-order item	View & order
Vaillant delta p valve VCW 242E CWK 24-12 SO28 012648	8050291 Mfr. no. 012648	€149.90	Made-to-order item	View & order
Vaillant water flow regulator MAG250-325/7-8W Sine MAG Turbo 012944	8050700 Mfr. no. 012944	€31.01	Made-to-order item	View & order

Pressure gauges for the Vaillant Combi boiler Turbo CWK 24-12 E SO28 (2) all Vaillant pressure gauges →

Part	Item no. / mfr. no.	Price	Stock
Vaillant pressure gauge VC/W110-282E VU/W	8051240 Mfr. no. 101250	€52.43	Made-to-order item	View & order
Vaillant thermometer VC/W110-282E 101542	8051280 Mfr. no. 101542	€67.43	Made-to-order item	View & order

Electrical parts for the Vaillant Combi boiler Turbo CWK 24-12 E SO28 (5) 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 switch VCW242E CWK24-12 SO28	8052025 Mfr. no. 251784	€27.80	Made-to-order item	View & order
Vaillant fuse 125 at 10 pcs VC/W255/2E	8057163 Mfr. no. 251961	€21.37	In stock	View & order
Vaillant cable clamp VC/W110-282E	8058372 Mfr. no. 188624	€12.80	Made-to-order item	View & order
Vaillant microswitch M3 VCW180-282E	8050089 Mfr. no. 0020107782	€27.80	Made-to-order item	View & order

Cables and wiring harnesses for the Vaillant Combi boiler Turbo CWK 24-12 E SO28 (3) all Vaillant cables and wiring harnesses →

Part	Item no. / mfr. no.	Price	Stock
Vaillant control line VCW180-280	8050037 Mfr. no. 0020107712	€24.59	Made-to-order item	View & order
Vaillant pump connection cable for e.g. boiler VC 280 XE (TTB) 0010030683	80501964 Mfr. no. 0010030683	€58.86	Made-to-order item	View & order
Vaillant pump wiring harness VC/W110-282E	8058536 Mfr. no. 250798	€32.09	Made-to-order item	View & order

Gaskets and seals for the Vaillant Combi boiler Turbo CWK 24-12 E SO28 (33) all Vaillant gaskets and seals →

Part	Item no. / mfr. no.	Price	Stock
Vaillant diaphragm 5 pcs MAG250-400/7-8MAG TurboVCW T3	8050115 Mfr. no. 010375	€59.93	Made-to-order item	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 gasket (10 pcs) for e.g. MAG 135/71 Open 981141	8057026 Mfr. no. 981141	€23.52	Made-to-order item	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 R 7x15 (10 pcs)	8057040 Mfr. no. 981155	€16.02	In stock	View & order
Vaillant gasket K 31x22x2 (10 pcs)	8057045 Mfr. no. 981162	€19.22	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 gasket (10 pcs) for e.g. MAG 135/71 Open 981143	8052341 Mfr. no. 981143	€16.02	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 O-ring R21x25 (10 pcs)	8052812 Mfr. no. 981175	€16.02	In stock	View & order
Vaillant O-ring for e.g. thermoCOMPACT VCW 254/4-7 0020107693	8050081 Mfr. no. 0020107693	€29.94	Made-to-order item	View & order
Vaillant diaphragm part-load switch VC 110-282 VCW180-282E 020220	8050430 Mfr. no. 020220	€24.59	Made-to-order item	View & order
Vaillant diaphragm overhaul kit VCW 180-282E 05-95	8050154 Mfr. no. 010359	€33.16	Made-to-order item	View & order
Vaillant O-ring (10 pcs) for e.g. hrSOLIDE VHR 24-28 C 981166	8057049 Mfr. no. 981166	€24.59	Made-to-order item	View & order
Vaillant gasket (10 pcs) for e.g. boiler VC 254/2 XE 981147	8057032 Mfr. no. 981147	€24.59	Made-to-order item	View & order
Vaillant gasket (10 pcs) for e.g. hrEXCLUSIEF VHR 35 S 981154	8057039 Mfr. no. 981154	€24.59	Made-to-order item	View & order
Vaillant gasket (10 pcs) for e.g. combi boiler Turbo CWK 24-12 E SO28 981156	8057041 Mfr. no. 981156	€24.59	Made-to-order item	View & order
Vaillant gasket K 14x11x1 (10 pcs)	8057042 Mfr. no. 981159	€24.59	Made-to-order item	View & order
Vaillant gasket (10 pcs) for e.g. MAG Mini 11-0/0 GX Open 981161	8057044 Mfr. no. 981161	€24.59	Made-to-order item	View & order
Vaillant gasket (10 pcs) for e.g. combi boiler Turbo CWK 24-12 E SO28 981173	8057053 Mfr. no. 981173	€24.59	Made-to-order item	View & order
Vaillant gasket 10 pcs for e.g. boiler VC 280 XE (TTB) 981157	8058887 Mfr. no. 981157	€25.66	Made-to-order item	View & order
Vaillant gasket for e.g. hrSOLIDE VHR 24-28 C 0020085467	8054634 Mfr. no. 0020085467	€23.52	Made-to-order item	View & order
Vaillant gasket (10 pcs) for e.g. MAG premium turbo 19/2 0010047556	80599903 Mfr. no. 0010047556	€51.36	Made-to-order item	View & order
Vaillant compression ring 3/4"	8053370 Mfr. no. 080184	€11.74	Made-to-order item	View & order
Vaillant diaphragm for e.g. combi boiler Turbo CWK 24-12 E SO28 0020107779	8059528 Mfr. no. 0020107779	€26.72	Made-to-order item	View & order
Vaillant O-ring R24 x 3 mm (10 pcs)	8052805 Mfr. no. 981176	€35.29	Made-to-order item	View & order
Vaillant O-ring for e.g. boiler VC 280 XE (TTB) 982481	8052757 Mfr. no. 982481	€11.74	Made-to-order item	View & order
Vaillant gasket (10 pcs) for e.g. hrSOLIDE VHR 24-28 C 981150	8052602 Mfr. no. 981150	€23.52	Made-to-order item	View & order
Vaillant gasket (10 pcs) for e.g. MAG 135/71 Open 981168	8057050 Mfr. no. 981168	€25.66	Made-to-order item	View & order
Vaillant sealing ring R 143 x 104 x 2 mm	8052524 Mfr. no. 980883	€11.74	Made-to-order item	View & order
Vaillant gasket K 14x10x15	8052680 Mfr. no. 981898	€12.80	Made-to-order item	View & order
Vaillant sealing ring O-ring	8058913 Mfr. no. 982499	€25.66	Made-to-order item	View & order
Vaillant baffle ring 49 mm VC/W112142182185242282E	8051905 Mfr. no. 194129	€32.09	Made-to-order item	View & order

Pipes, tubes and hoses for the Vaillant Combi boiler Turbo CWK 24-12 E SO28 (14) all Vaillant pipes, tubes and hoses →

Part	Item no. / mfr. no.	Price	Stock
Vaillant compression coupling 3/4"x 20 mm	8050989 Mfr. no. 080074	€37.44	In stock	View & order
Vaillant fan bend VC112142VC/W182185242245282	8051356 Mfr. no. 116669	€36.37	Made-to-order item	View & order
Vaillant air vent nipple	8051596 Mfr. no. 140015	€24.59	Made-to-order item	View & order
Vaillant priority valve control line VCW180-282E for e.g. combi boiler Turbo CWK 24-12 E SO28 084245	8051012 Mfr. no. 084245	€26.72	Made-to-order item	View & order
Vaillant priority valve control line VC180-282E	8051061 Mfr. no. 088940	€34.22	Made-to-order item	View & order
Vaillant flame guide plate VC/W 182-282E	8050940 Mfr. no. 070881	€11.74	Made-to-order item	View & order
Vaillant nipple for e.g. combi boiler Turbo CWK 24-12 E SO28 0020107764	8050083 Mfr. no. 0020107764	€11.74	Made-to-order item	View & order
Vaillant bend complete 45 degrees VC/W112142182242282E	8052226 Mfr. no. 284897	€139.19	Made-to-order item	View & order
Vaillant bend 90 degrees (alu) VC/W182185242245282E	8058659 Mfr. no. 284841	€105.98	Made-to-order item	View & order
Vaillant gas coupling 1"	8050990 Mfr. no. 080075	€56.71	Made-to-order item	View & order
Vaillant air supply pipe VC/W108-282E	8054125 Mfr. no. 084128	€26.72	Made-to-order item	View & order
Vaillant flue d=63mm VC/W112142182185242245282 145958	8053575 Mfr. no. 145958	€99.56	Made-to-order item	View & order
Vaillant union nut 3/4"	8053360 Mfr. no. 080177	€24.59	Made-to-order item	View & order
Vaillant union nut 1"	8057810 Mfr. no. 080196	€12.80	Made-to-order item	View & order

Casing and panels for the Vaillant Combi boiler Turbo CWK 24-12 E SO28 (5) all Vaillant casing and panels →

Part	Item no. / mfr. no.	Price	Stock
Vaillant top section 180-282E after 09-2000	8050403 Mfr. no. 013061	€56.71	In stock	View & order
Vaillant anchor plate cvw 242 SO 28	8058348 Mfr. no. 171207	€11.74	Made-to-order item	View & order
Vaillant cap rga-9078 VC/W112142182242282E	8056555 Mfr. no. 178446	€143.47	Made-to-order item	View & order
Vaillant temperature limiter cap VC/W110-282E	8058444 Mfr. no. 204048	€11.74	Made-to-order item	View & order
Vaillant water section upper part MAG250-400 MAG-Turbo 013014	8050400 Mfr. no. 013014	€110.27	Made-to-order item	View & order

Fixing material for the Vaillant Combi boiler Turbo CWK 24-12 E SO28 (30) all Vaillant fixing material →

Part	Item no. / mfr. no.	Price	Stock
Vaillant screw M4x12 060009	8050735 Mfr. no. 060009	€23.52	Made-to-order item	View & order
Vaillant screw 202622	8055362 Mfr. no. 0020107716	€12.80	Made-to-order item	View & order
Vaillant diverter valve bracket VCW180-282	8050031 Mfr. no. 0020107703	€45.47	Made-to-order item	View & order
Vaillant screw 48 x 95 drill hole 4 mm	8050117 Mfr. no. 0020107695	€23.52	Made-to-order item	View & order
Vaillant clamping band d63 x 22 mm VC/W182185242245282E	8052160 Mfr. no. 282512	€48.14	Made-to-order item	View & order
Vaillant screw MAG VCW VUW brass	8050060 Mfr. no. 010050	€24.59	Made-to-order item	View & order
Vaillant screw 2 x 981898 VCW180-282E solo sch. MAG/9 Turbo/7	8050420 Mfr. no. 155614	€25.66	Made-to-order item	View & order
Vaillant screw 3.5x9.5/4.8x	8051052 Mfr. no. 088624	€11.74	Made-to-order item	View & order
Vaillant screw m4x8	8050737 Mfr. no. 060018	€23.52	Made-to-order item	View & order
Vaillant screw 63 x 32	8056483 Mfr. no. 235728	€12.80	Made-to-order item	View & order
Vaillant screw M4 x 16 mm	8057120 Mfr. no. 118948	€12.80	Made-to-order item	View & order
Vaillant screw 070350	8057587 Mfr. no. 070350	€12.80	Made-to-order item	View & order
Vaillant screw M6x15	8057591 Mfr. no. 070361	€12.80	Made-to-order item	View & order
Vaillant screw 130005	8058202 Mfr. no. 130005	€23.52	Made-to-order item	View & order
Vaillant screw 492147	8058728 Mfr. no. 492147	€12.80	Made-to-order item	View & order
Vaillant locking plate VCW180-282E	8050059 Mfr. no. 0020107697	€11.74	Made-to-order item	View & order
Vaillant retaining spring for e.g. combi boiler Turbo CWK 24-12 E SO28 0020107728	8050016 Mfr. no. 0020107728	€24.59	Made-to-order item	View & order
Vaillant clamping band for e.g. combi boiler Turbo CWK 24-12 E SO28 0020228103	8054637 Mfr. no. 0020228103	€31.01	Made-to-order item	View & order
Vaillant screw 0010027609, 10 pcs	80501335 Mfr. no. 0010027609	€23.52	Made-to-order item	View & order
Vaillant bracket complete VC/W110-282E	8058326 Mfr. no. 154244	€135.97	Made-to-order item	View & order
Vaillant diverter valve locking plate VCW180-282E	8051710 Mfr. no. 154132	€12.80	Made-to-order item	View & order
Vaillant clamping band diameter 95.5 x 100 mm VC/W Turbo	8052200 Mfr. no. 282526	€31.01	Made-to-order item	View & order
Vaillant clamping band diameter 95.5 x 55 mm VC/W182185242245282E	8052170 Mfr. no. 282513	€31.01	Made-to-order item	View & order
Vaillant nut M4x1	8053510 Mfr. no. 040364	€12.80	Made-to-order item	View & order
Vaillant microswitch lever ring VCW 180-282E	8058395 Mfr. no. 191420	€12.80	Made-to-order item	View & order
Vaillant sight glass ring VC/W Sine 18T3221 MAG Sine Turbo/7/9	8054925 Mfr. no. 282249	€25.66	Made-to-order item	View & order
Vaillant air supply/flue rosette VC/W Turbo CWK 24-12	8058285 Mfr. no. 147022	€12.80	Made-to-order item	View & order
Vaillant diaphragm plate spring VCW180-282E	8051303 Mfr. no. 104263	€12.80	Made-to-order item	View & order
Vaillant diverter valve spring	8059441 Mfr. no. 0020107698	€11.74	Made-to-order item	View & order
Vaillant fan bracket VC/W182185242245282E	8055860 Mfr. no. 078409	€25.66	Made-to-order item	View & order

Other parts for the Vaillant Combi boiler Turbo CWK 24-12 E SO28 (22)

Part	Item no. / mfr. no.	Price	Stock
Vaillant diaphragm bolt MAG/VCW	8050020 Mfr. no. 010003	€12.80	In stock	View & order
Vaillant gland bush MAG/VCW	8050050 Mfr. no. 012156	€18.16	In stock	View & order
Vaillant diaphragm plate MAG250/1-400/7TurboVCW	8050030 Mfr. no. 010007	€28.87	Made-to-order item	View & order
Vaillant gland VCW 180-282E after 9/2000 5 pcs	8056371 Mfr. no. 012162	€61.00	In stock	View & order
Vaillant cold water connection VCW110-282E	8050141 Mfr. no. 0020107766	€94.20	Made-to-order item	View & order
Vaillant sight glass VC-VCW Turbo/7/9/10/Sine-mot	8051758 Mfr. no. 161225	€36.37	Made-to-order item	View & order
Vaillant tap headwork MAG250-440/7/9/10/12T3WVC/W E19/2	8052253 Mfr. no. 950057	€46.01	Made-to-order item	View & order
Vaillant gland VCW 180-282E priority valve	8050245 Mfr. no. 0020107781	€27.80	Made-to-order item	View & order
Vaillant pin VCW180-282E 010727	8050180 Mfr. no. 010727	€12.80	Made-to-order item	View & order
Vaillant Turbo module VC/W 112142182-242-282E	8051530 Mfr. no. 130288	€94.20	Made-to-order item	View & order
Vaillant water strainer MAG/9/10/12 MAG 19/224/2 XZ XI PX IG	8051447 Mfr. no. 0020028121	€31.01	Made-to-order item	View & order
Vaillant water strainer MAG250-400/5-8 Turbo VCW	8050070 Mfr. no. 010053	€27.80	Made-to-order item	View & order
Vaillant diaphragm plate	8050012 Mfr. no. 0020039718	€24.59	Made-to-order item	View & order
Vaillant gland for e.g. combi boiler Turbo CWK 24-12 E SO28 0020107780	8050014 Mfr. no. 0020107780	€27.80	Made-to-order item	View & order
Vaillant collar for pitched roof	8050377 Mfr. no. 009076	€77.06	Made-to-order item	View & order
Vaillant collar for flat roof	8050379 Mfr. no. 009056	€54.58	Made-to-order item	View & order
Vaillant burner pressure test nipple VC/W112142182-282E MAG T275	8051568 Mfr. no. 133504	€24.59	Made-to-order item	View & order
Vaillant diaphragm pump mounting rubber VC/W110-282E	8058236 Mfr. no. 137286	€11.74	Made-to-order item	View & order
Vaillant shell part VC/W182185242245282E	8052234 Mfr. no. 292208	€32.09	Made-to-order item	View & order
Vaillant spring washer VC/W	8058303 Mfr. no. 150012	€12.80	Made-to-order item	View & order
Vaillant combustion air supply pipe	8059982 Mfr. no. 192901	€72.78	Made-to-order item	View & order
Vaillant restrictor ring	8050129 Mfr. no. 0020107792	€28.87	Made-to-order item	View & order

Exploded views of the Vaillant Combi boiler Turbo CWK 24-12 E SO28

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

Fault code on your Vaillant Combi boiler Turbo CWK 24-12 E SO28? 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 Combi boiler Turbo CWK 24-12 E SO28?

The catalogue lists 136 original parts for the Vaillant Combi boiler Turbo CWK 24-12 E SO28, including fans, temperature sensors and NTC sensors, pressure switches and differential pressure switches, pumps. All parts are listed above, grouped by type, with part number and price.

How much does a fan for the Vaillant Combi boiler Turbo CWK 24-12 E SO28 cost?

The fans for this model cost €248.44 incl. VAT. Check the table "Fans" above for the right part number.

Are the parts for the Vaillant Combi boiler Turbo CWK 24-12 E SO28 in stock?

21 of the 136 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 Combi boiler Turbo CWK 24-12 E SO28?

Search for the part by part number or use the exploded view of the Vaillant Combi boiler Turbo CWK 24-12 E SO28.

Are these original Vaillant parts?

Yes. All 136 parts in this list are original manufacturer parts for the Vaillant Combi boiler Turbo CWK 24-12 E SO28, delivered with the correct part number.

How much do parts for the Vaillant Combi boiler Turbo CWK 24-12 E SO28 cost?

Parts for the Vaillant Combi boiler Turbo CWK 24-12 E SO28 range from €11.74 to €322.34 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.