Rayburn Pump Over Run Thermostat Stat R2502

460K 480K MKI MX/E

Rayburn Pump Overrun Thermostat Stat R2502
Reliable Pump Overrun Control for Rayburn Oil-Fired Boilers

The Rayburn Pump Overrun Thermostat Stat R2502 is a genuine replacement thermostat designed to control the overrun time of the circulating pump in Rayburn oil-fired boilers. This critical component ensures that the pump continues to circulate water for a short period after the burner has switched off, allowing residual heat to be effectively distributed and preventing overheating or damage to the system. Ideal for heating engineers and knowledgeable DIY customers, the R2502 helps maintain boiler efficiency and longevity.

Key Features:

• Genuine Rayburn Part – Designed specifically for Rayburn boilers and cookers

• Pump Overrun Function – Controls the timed operation of the pump after burner shutdown

• Prevents Overheating – Helps dissipate residual heat to protect the boiler and system

• Durable and Reliable – Built to withstand high temperatures and regular cycling

• Direct Fit Replacement – Easy to install, suitable for routine maintenance or repair

Compatible With:

• Rayburn oil-fired boiler models including:

  • 400 Series

  • 480K

  • 499K

• Other Rayburn cookers and boilers fitted with pump overrun thermostat stat R2502
  (Please verify compatibility with your appliance’s model and serial number before ordering.)

When to Replace the Pump Overrun Thermostat:

• If the pump fails to continue running after the burner switches off

• When experiencing boiler overheating or irregular temperature fluctuations

• As part of regular servicing or system refurbishment

• When the thermostat shows signs of wear, failure, or electrical faults

Tip: Proper functioning of the pump overrun stat is essential to prevent heat damage and improve overall boiler efficiency.

Technical Specifications:

• Part Number: R2502

• Function: Controls pump overrun time after burner shutdown

• Voltage: 230V AC standard control voltage

• Temperature Range: Factory calibrated for Rayburn heating systems

• Mounting: Designed for direct fit within Rayburn boiler control housings