Rayburn Thermostat Boilerside Nouvelle & Pj R1237 Cl6 P0136

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Rayburn Thermostat – Boilerside (Nouvelle & PJ) | Part No: R1237 / CL6 / P0136
Reliable Temperature Control for Rayburn Nouvelle & PJ Boilers

The Rayburn Boilerside Thermostat R1237 (also listed as CL6 or P0136) is a genuine replacement thermostat specifically designed for Rayburn Nouvelle and PJ models. This critical control component regulates the temperature of the boiler water, ensuring your heating system operates within safe and efficient limits. Whether you're carrying out routine maintenance or resolving a boiler temperature issue, this high-quality thermostat provides consistent, dependable performance.

Engineered for precision and durability, the R1237 is the ideal replacement for faulty or worn thermostats, restoring accurate temperature control and system protection.

Key Features:

• Genuine Rayburn replacement part – part numbers: R1237 / CL6 / P0136

• Accurately regulates boilerside water temperature

• Helps prevent overheating, inefficiency, or system lockouts

• Durable design for long-lasting performance in high-heat environments

• Straightforward fitment for professional engineers or confident DIY users

• Compatible with Rayburn oil-fired systems using boilerside stat control

Compatible Models:

• Rayburn Nouvelle (various oil-fired models)

• Rayburn PJ (Boilerside temperature control units)

For confirmation of compatibility, provide your Rayburn model or serial number — our team is happy to assist.

When to Replace:

• If the boiler is overheating or struggling to maintain consistent temperatures

• During regular servicing or burner refurbishment

• When experiencing cycling issues or loss of temperature control

• If the existing thermostat is damaged, inaccurate, or unresponsive

Technical Specifications:

• Part Numbers: R1237 / CL6 / P0136

• Function: Boilerside thermostat (temperature regulation)

• Application: Oil-fired Rayburn cookers with hot water / heating output

• Installation: Fits into the boiler’s control circuit — professional fitting recommended

• Material: Heat-resistant, corrosion-proof components for durability