When your boiler develops a problem, one of the first signs is often a fault code flashing up on the display. These codes are designed to help identify what has gone wrong, but many homeowners are unsure which ones can be reset easily and which require urgent attention. Ignoring certain boiler fault codes can put your heating system at risk, reduce efficiency, or even make the boiler unsafe.
Boiler Fault Codes That Require Attention
Modern boilers are built with safety features that trigger fault codes when something is wrong. While some codes may point to minor issues like low pressure, others highlight serious faults that should never be ignored. Calling a qualified heating engineer is the best way to ensure your boiler is checked, repaired, and made safe.
Low Pressure Faults
One of the most common boiler codes is linked to low water pressure. This usually happens if there is a leak in the system or if radiators have recently been bled. While topping up the pressure is sometimes possible, if the code keeps reappearing, it is a sign that something is wrong and needs professional inspection.
Ignition or Flame Failure
If your boiler is showing a fault code related to ignition failure or no flame detected, it means the burner is not lighting correctly. This could be caused by a faulty ignition lead, issues with the gas supply, or a blocked burner. This type of fault should not be ignored, as it prevents the boiler from operating safely.
Overheating Warnings
Boilers are designed to lock out if the system is overheating. An overheating code may indicate circulation problems, a faulty pump, or a blockage within the system. Ignoring this warning could cause lasting damage to the boiler and even present safety risks.
Fan and Air Supply Faults
Some codes point to problems with the fan or flue system. These are critical safety features that ensure dangerous gases are vented outside the home. If your boiler cannot detect correct airflow, it will shut down and display a fault code. A Gas Safe registered engineer should be called immediately to check the system.
Sensor and Thermostat Errors
Modern boilers rely on sensors to regulate water temperature and ensure efficient heating. If these sensors fail or become faulty, the boiler will display a code and may stop working. While some of these issues are minor, they still need professional attention to prevent further breakdowns.
Professional Boiler Repairs in Hornchurch, Romford and Dagenham
At RDS Plumbing Ltd, we provide expert boiler repair services across Hornchurch, Romford and Dagenham. Our Gas Safe registered engineers can diagnose and repair all major boiler fault codes, restoring your heating system to safe and reliable operation. Whether it’s low pressure, ignition failure, or a safety lockout, we’ll ensure the problem is resolved quickly and professionally.
Call us today on 0800 028 2031 or 01708 444685, or fill out our contact form to arrange your boiler repair with RDS Plumbing Ltd.
