If your boiler has any of these indications call our service engineers.


Common boiler faults

C Zero Energy Ltd

Ethical energy


These are common faults that indicate a boiler needs servicing:

 Flames appear irregular or yellow


 Smell of fumes or gas - (turn off gas at the gas meter) speak to National Grid then call us.


 Stains or smoke marks around the appliance.


 Overheating - temperature gauge goes above 80 degrees centigrade.


 Pressure drops rapidly - boiler needs refilling more than once a month.


 Fan whines loudly or screeches.


 Pilot goes out repeatedly.


 Poor hot water.


 Radiators don't all heat up at the same time - possibly a boiler fault, or it is equally possible that the system is unbalanced.