Some shutdowns have simple explanations.
Common situations
Action
Carry out the quick checks below.
Repeated shutdowns often indicate a developing fault.
Common signs
Action
Arrange an inspection before the problem worsens.
Warning signs
Action
Switch the boiler off and contact a Gas Safe engineer.
Contact a Gas Safe engineer if:
Repeated shutdowns are commonly caused by low boiler pressure, overheating, faulty thermostats, circulation problems or internal boiler faults. A professional inspection can identify the exact cause.
Yes. If the pressure falls below the recommended range, many boilers will shut down automatically to protect the system.
Frequent restarting, also known as short cycling, can be caused by thermostat problems, overheating, circulation issues or an incorrectly sized boiler.
This may indicate overheating, poor circulation, a faulty pump or blocked pipework. If the issue continues, professional diagnosis is recommended.
This can be caused by a faulty diverter valve, pressure issues or an internal boiler fault, particularly in combi boilers.
No. One reset is usually enough after checking the pressure and thermostat. If the problem continues, repeated resets won't fix the underlying issue.
Yes. Keystone provides boiler diagnostics and repairs across London for repeated shutdowns, ignition faults, overheating and pressure-related problems.
The cost depends on the underlying fault. Keystone provides a transparent quotation after diagnosing the issue, so you'll know exactly what's required before any repair begins.
Keystone's Gas Safe engineers diagnose and repair boiler faults throughout London, from repeated shutdowns and ignition problems to pressure issues and leaks. We provide clear advice, transparent pricing and reliable repairs to help restore your heating as quickly as possible.