Vaillant MAG 250/7 3 W Open spare parts
In brief
Instalpunt supplies 48 original parts for the Vaillant MAG 250/7 3 W Open, including gas valves and gas control, thermostats and controls, burners. Order online.
- 48Spare parts
- 14In stock
- €5.89From
- 9Types
Looking for parts for the Vaillant MAG 250/7 3 W Open (instantaneous water heater)? Below are all 48 original parts, grouped by part type. Choose a type to jump straight to the right table.
- Gas valves and gas control 1
- Thermostats and controls 1
- Burners 4
- Displays and controls 1
- Valves 3
- Gaskets and seals 15
- Pipes, tubes and hoses 4
- Casing and panels 1
- Fixing material 8
- Other parts 10
Gas valves and gas control for the Vaillant MAG 250/7 3 W Open (1) all Vaillant gas valves and gas control →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Vaillant venturi 31 MAG250/1-7400/7TZW | 8057160 Mfr. no. 010014 | €41.95 | Made-to-order item | View & order |
Thermostats and controls for the Vaillant MAG 250/7 3 W Open (1) all Vaillant thermostats and controls →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Vaillant thermostatic element MAG/7TZW 19/2XZ-R1 | 8051790 Mfr. no. 171125 | €45.95 | In stock | View & order |
Burners for the Vaillant MAG 250/7 3 W Open (4) all Vaillant burners →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Vaillant pilot injector 0.18 MAG135/1400/7 135/12 b | 8050510 Mfr. no. 040550 | €17.95 | In stock | View & order |
| Vaillant pilot injector 030 MAG250-400/7Sine250/9Turbo/7/9 | 8050586 Mfr. no. 0020078902 | €17.95 | In stock | View & order |
| Vaillant pilot injector 0.40 MAG135-4009-24/XZSine325/9 | 8050500 Mfr. no. 040548 | €19.95 | In stock | View & order |
| Vaillant pilot injector 018 MAG135-400/7VC-W15 | 8050580 Mfr. no. 042815 | €25.95 | Made-to-order item | View & order |
Displays and controls for the Vaillant MAG 250/7 3 W Open (1) all Vaillant displays and controls →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Vaillant knob water section MAG250-400/7-8MAG Turbo | 8051623 Mfr. no. 143937 | €24.95 | Made-to-order item | View & order |
Valves for the Vaillant MAG 250/7 3 W Open (3) all Vaillant valves →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Vaillant water flow regulator without + MAG250-400/7TZW | 8050390 Mfr. no. 012947 | €28.95 | Made-to-order item | View & order |
| Vaillant water flow regulator MAG250-325/7-8W Sine MAG Turbo 012944 | 8050700 Mfr. no. 012944 | €28.95 | Made-to-order item | View & order |
| Vaillant diverter tap/shower MAG | 8052255 Mfr. no. 950183 | €135.95 | Made-to-order item | View & order |
Gaskets and seals for the Vaillant MAG 250/7 3 W Open (15) all Vaillant gaskets and seals →
Pipes, tubes and hoses for the Vaillant MAG 250/7 3 W Open (4) 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 | €34.95 | In stock | View & order |
| Vaillant gas coupling 1" | 8050990 Mfr. no. 080075 | €52.95 | Made-to-order item | View & order |
| Vaillant union nut 3/4" | 8053360 Mfr. no. 080177 | €22.95 | Made-to-order item | View & order |
| Vaillant union nut 1" | 8057810 Mfr. no. 080196 | €11.95 | Not available | View & order |
Casing and panels for the Vaillant MAG 250/7 3 W Open (1) all Vaillant casing and panels →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Vaillant water section upper part MAG250-400 MAG-Turbo 013014 | 8050400 Mfr. no. 013014 | €102.95 | Made-to-order item | View & order |
Fixing material for the Vaillant MAG 250/7 3 W Open (8) all Vaillant fixing material →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Vaillant screw MAG VCW VUW brass | 8050060 Mfr. no. 010050 | €22.95 | Made-to-order item | View & order |
| Vaillant screw 2 x 981898 VCW180-282E solo sch. MAG/9 Turbo/7 | 8050420 Mfr. no. 155614 | €23.95 | Made-to-order item | View & order |
| Vaillant screw m4x8 | 8050737 Mfr. no. 060018 | €21.95 | Made-to-order item | View & order |
| Vaillant screw M6x15 | 8057591 Mfr. no. 070361 | €11.95 | Not available | View & order |
| Vaillant nut M4x1 | 8053510 Mfr. no. 040364 | €11.95 | Not available | View & order |
| Vaillant rosette for e.g. MAG 250/7 3 W Open 950088 | 8056516 Mfr. no. 950088 | €23.95 | Made-to-order item | View & order |
| Vaillant spindle MAG250-400/7/8TZW MAG Turbo | 8050260 Mfr. no. 012528 | €56.95 | Made-to-order item | View & order |
| Vaillant plug 3/4 | 8055830 Mfr. no. 950017 | €25.95 | Made-to-order item | View & order |
Other parts for the Vaillant MAG 250/7 3 W Open (10)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Vaillant diaphragm bolt MAG/VCW | 8050020 Mfr. no. 010003 | €11.95 | In stock | View & order |
| Vaillant gland bush MAG/VCW | 8050050 Mfr. no. 012156 | €16.95 | In stock | View & order |
| Vaillant thermo-magnet MAG125/7-8250-400/7 MAG/Turbo | 8051770 Mfr. no. 170255 | €46.95 | In stock | View & order |
| Vaillant water section MAG250/7 TZW | 8053240 Mfr. no. 011240 | €387.95 | Made-to-order item | View & order |
| Vaillant diaphragm plate MAG250/1-400/7TurboVCW | 8050030 Mfr. no. 010007 | €26.95 | Made-to-order item | View & order |
| Vaillant tap headwork MAG250-440/7/9/10/12T3WVC/W E19/2 | 8052253 Mfr. no. 950057 | €42.95 | Made-to-order item | View & order |
| Vaillant water section MAG325/7 TZW | 8050190 Mfr. no. 011219 | €287.95 | Made-to-order item | View & order |
| Vaillant water strainer MAG250-400/5-8 Turbo VCW | 8050070 Mfr. no. 010053 | €25.95 | Made-to-order item | View & order |
| Vaillant water section MAG Turbo/7w Sine | 8050193 Mfr. no. 011222 | €353.95 | Made-to-order item | View & order |
| Vaillant water section Sine 325/7 TZW | 8050194 Mfr. no. 011223 | €358.95 | Made-to-order item | View & order |
Fault code on your Vaillant MAG 250/7 3 W Open? 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.
| Code | What is going on | Part type |
|---|---|---|
| F.105 | Gas valve offset in D.052 set incorrectly | Gas valves and gas control |
| F.25 | Break in the wiring harness of the burner, fan and gas valve | Gas valves and gas control |
| F.26 | Gas valve stepper motor current implausible | Gas valves and gas control |
| F.27 | Ionisation signal with gas valves closed | Gas valves and gas control |
| F.279 | The hot gas thermostat switches the heat pump off if the pressure in the refrigerant circuit is too high. After a waiting time the heat pump makes another start attempt. After three consecutive failed start attempts an error is displayed. Refrigerant circuit temperature max.: 130 °C. Waiting time: 5 min (after the first occurrence). Waiting time: 30 min. (after the second and each subsequent occurrence). Error counter reset when both conditions are with: heat demand without premature switch-off. 60 min of trouble-free operation. | Thermostats and controls |
For guidance only: the same code can have a different cause depending on the situation.
Other Vaillant instantaneous water heaters
- Vaillant MAG 125/11 OZ Open 50
- Vaillant MAG 11, 12 Open Propane 50
- Vaillant MAG 11-0/0 XZ Open 56
- Vaillant MAG 135/11 O Open 48
- Vaillant MAG 135/11 XZ Open 50
- Vaillant MAG 135/12 XZ Open 50
- Vaillant MAG 135/7 TTB Open 48
- Vaillant MAG 135/71 Open 45
- Vaillant MAG 135/71 SO17 Open 47
- Vaillant MAG 135/71 TTB Open 48
- Vaillant MAG 14-0/0 GX Open 62
- Vaillant MAG 14-0/0 XI Open 63
Frequently asked questions
Which parts are available for the Vaillant MAG 250/7 3 W Open?
The catalogue lists 48 original parts for the Vaillant MAG 250/7 3 W Open, including gas valves and gas control, thermostats and controls, burners, displays and controls. All parts are listed above, grouped by type, with part number and price.
How much does a gas valve for the Vaillant MAG 250/7 3 W Open cost?
The gas valves and gas control for this model cost €20.26 incl. VAT. Check the table "Gas valves and gas control" above for the right part number.
Are the parts for the Vaillant MAG 250/7 3 W Open in stock?
14 of the 48 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 MAG 250/7 3 W Open?
Search for the part by part number or use the parts list of the Vaillant MAG 250/7 3 W Open. Is your appliance showing a fault code? The fault code table shows the matching part type.
Are these original Vaillant parts?
Yes. All 48 parts in this list are original manufacturer parts for the Vaillant MAG 250/7 3 W Open, supplied through the official technical wholesale channel and with the correct part number.
How much do parts for the Vaillant MAG 250/7 3 W Open cost?
Parts for the Vaillant MAG 250/7 3 W Open range from €5.89 to €345.00 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.