Electrical Components

Electrical Components for Hot Water & Heating  Systems (Genuine OEM Parts)

Electrical components are essential for the safe operation, control and repair of electric water heaters. From thermostats and sensors to wiring and control boards, these parts ensure systems run efficiently and respond correctly to demand.

At Heatraq, we supply genuine OEM electrical components for Heatrae Sadia, Baxi and other leading brands. Whether you're diagnosing a fault or sourcing parts for a repair, you can quickly find the right component using the categories above.

Explore Electrical Components

Electrical Components for Water Heater Repairs & Maintenance

Our Electrical Components category covers the key parts used across electric water heaters and hot water systems, including wiring, control and safety devices. Every product is selected for compatibility, reliability and ease of installation, helping engineers and installers complete repairs quickly and safely.

From PCB boards and control modules to thermal cut-outs, sensors and wiring looms, these components play a critical role in maintaining system performance and preventing faults. Using genuine OEM parts ensures accurate fitment, consistent operation and long-term reliability.

What You’ll Find in This Range

  • Wiring looms and electrical harness assemblies
  • PCB boards and electronic control modules
  • Thermostats, thermal cut-outs and safety devices
  • Sensors, probes and temperature controls
  • Connectors, terminal blocks and electrical fittings
  • OEM replacement kits and electrical assemblies

Who This Range Is For

  • Heating engineers and installers
  • Electricians and maintenance professionals
  • Facilities and building managers
  • Homeowners sourcing genuine replacement parts

Need Help Identifying the Right Part?

If you're unsure which electrical component you need, send us your appliance details and we’ll help you find the correct part before you order.

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Electrical Components for Water Heaters – FAQ

What electrical components are used in water heaters?

Electric water heaters use a range of components including thermostats, thermal cut-outs, sensors, wiring looms, PCB control boards and electrical connectors. These parts work together to regulate temperature, control operation and ensure safe performance.

Can I replace electrical components in a water heater individually?

Yes, most electrical components such as thermostats, sensors and control boards can be replaced individually. This allows faults to be repaired quickly and cost-effectively without replacing the entire unit.

How do I know which electrical component I need?

The correct part will depend on your appliance model, fault symptoms and component type. Common issues such as no heat, overheating or error codes can often be traced to thermostats, sensors or PCB boards. If you're unsure, provide your model details and we can help confirm compatibility.

Are electrical components compatible across different brands?

Electrical components are not always interchangeable between brands or models. Always check product specifications, voltage and model compatibility before ordering to ensure correct fitment and safe operation.

Do you supply genuine electrical components for Heatrae Sadia and Baxi systems?

Yes, we supply genuine OEM and compatible electrical components suitable for Heatrae Sadia, Baxi and other leading water heater brands, ensuring reliable performance and correct fit.

Are these electrical components suitable for commercial systems?

Yes, our range is suitable for both domestic and commercial water heaters, including high-demand environments such as hospitality, healthcare and facilities management.

What is the difference between a thermostat and a thermal cut-out?

A thermostat controls the normal operating temperature of the water heater, while a thermal cut-out is a safety device that shuts the system down if it overheats. Both are essential for safe and efficient operation.

Do I need a qualified electrician to replace electrical components?

Yes, electrical components should always be installed or replaced by a qualified electrician or competent professional to ensure safety and compliance with UK regulations.