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Vaillant

GermanyBoiler Spare Parts

Vaillant is a German manufacturer of heating and hot-water systems with a product portfolio spanning condensing boilers, heat pumps, solar thermal components, and associated controls. The brand operates across residential and light commercial applications, with boiler product lines including the VC, VCW, VM, VMW, WM, and WMW series—each designed for specific heating capacity and installation configurations. These parts are designated to original Vaillant equipment specifications, enabling technicians and maintenance teams to maintain system performance and compliance with manufacturer design standards. The spare-parts inventory covers both older and current generation boiler models, with each component cross-referenced to Vaillant part numbers for precise identification. Vaillant boiler systems operate across heating and domestic hot-water circuits, necessitating reliable supply chains for differential switches, pressure relief mechanisms, and circulation pump assemblies that regulate flow and pressure stability. The modular design of Vaillant boilers means individual components—locking clips, check valves, electronic control boards—can be sourced and replaced without requiring full-unit replacement, supporting cost-effective equipment maintenance

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About Vaillant

Vaillant is a German manufacturer of heating and hot-water systems with a product portfolio spanning condensing boilers, heat pumps, solar thermal components, and associated controls. The brand operates across residential and light commercial applications, with boiler product lines including the VC, VCW, VM, VMW, WM, and WMW series—each designed for specific heating capacity and installation configurations. These parts are designated to original Vaillant equipment specifications, enabling technicians and maintenance teams to maintain system performance and compliance with manufacturer design standards. The spare-parts inventory covers both older and current generation boiler models, with each component cross-referenced to Vaillant part numbers for precise identification. Vaillant boiler systems operate across heating and domestic hot-water circuits, necessitating reliable supply chains for differential switches, pressure relief mechanisms, and circulation pump assemblies that regulate flow and pressure stability. The modular design of Vaillant boilers means individual components—locking clips, check valves, electronic control boards—can be sourced and replaced without requiring full-unit replacement, supporting cost-effective equipment maintenance

Common Applications

  • District heating networks — Vaillant VC/VCW circulation pumps and relief valves maintain flow and pressure in multi-building heating distribution loops.
  • Commercial office building HVAC — Vaillant VM/VMW series boilers with replacement check valves and pressure switches support continuous domestic hot water and space heating.
  • Industrial facility heating plant — Vaillant WM/WMW boiler assemblies with differential switches and spark plugs provide backup or primary thermal capacity for process and comfort heating.
  • Service and maintenance programs — Vaillant spare-parts availability (pumps, valves, boards, ignition components) enables planned and emergency repairs without extended downtime.
  • Retrofit and upgrade projects — Original Vaillant circuit boards and mechanical assemblies support equipment modernization within existing VC/VCW/VM boiler frameworks.
Origin: Manufactured in Germany

Related brands we carry

Comparable manufacturers in the same product category.

Ambiance
Ariston
Baxi
Beretta
Chaffoteaux
Cointra

Frequently asked questions

Common questions about Vaillant from 3G Electric.

What boiler series does Vaillant spare-parts inventory in stock cover?

We stock components for VC, VCW, VM, VMW, WM, and WMW series boilers. Each series corresponds to specific capacity and configuration variants. Circulation pumps, differential switches, relief valves, check valves, and electronic control boards are catalogued by series designation and original part number to ensure correct fitment and thermal/pressure ratings.

Are Vaillant circulation pumps and pressure switches cross-referenced by boiler model?

Yes. Each Vaillant spare part carries an original equipment part number (e.g., 161107 for VC/VCW25/1 circulation pump). We catalog these by model prefix and component function. Maintenance teams can reference their boiler nameplate series—VC, VCW, VM, WM—to identify compatible circulation pump and differential-switch assemblies without guessing.

What maintenance components does Vaillant stock for relief-valve and check-valve replacement?

Relief valves are available for VCW and VMW254 models, covering pressure-limiting functionality in heating circuits. Check valves, such as the VCWTECNOBLOCK assembly (part 012141), prevent backflow in circulation loops. Both are pressure-rated components; specification of the correct model ensures proper system pressure stability and prevents overpressure conditions.

How are Vaillant circuit boards and ignition components identified in the spare-parts range?

Control boards and spark plugs are catalogued by boiler series and part number. The VMWES242 circuit board (0020034604) and MAG275-440/12XI spark plug are examples of electronic and combustion-related consumables. We maintain these components to support system diagnostics and ignition reliability across different Vaillant generations.

Can Vaillant spare parts be ordered individually or must they be purchased in kits?

Individual components are supplied as distinct SKUs. A technician needing only a circulation pump, differential switch, or relief valve can order that part alone. This supports cost control for targeted repairs and allows facilities to maintain component-level inventory without overstock of complete assemblies.

Does 3G Electric supply Vaillant products?

Yes — 3G Electric (S) Pte. Ltd. supplies Vaillant products. We stock the Vaillant catalog and supply genuine factory-original products with full manufacturer warranty and technical support.