d.60 Safety Limiter Cut Offs - Boiler has overheated and shut down

What does d.60 mean?

This diagnostic code indicates how many times the boiler's safety temperature limiter has activated, leading to a shutdown due to overheating. A rising number suggests a recurring issue with the boiler's temperature control.

• Insufficient water flow through the heating system
• Air trapped within the heating system
• Faulty heating pump or blockages
• Sensor malfunction causing incorrect temperature readings

Click steps to track your progress.

1. 1

   Check the system pressure gauge and ensure it is within the recommended operating range (usually 1-1.5 bar when cold).

2. 2

   Bleed any radiators in your home that feel cold at the top to release trapped air from the heating system.

3. 3

   Verify that all radiator valves are fully open and not restricting the water flow.

4. 4

   If the problem persists or the value continues to increase, contact a qualified heating engineer to diagnose and resolve the overheating issue.