Keston Appliance Repair in Davenport & Cale Green

What does error E02 mean on a Keston Qudos boiler?

Error E02 on a Keston Qudos boiler indicates ignition failure after five attempts. If you smell gas, do not operate any switches or appliances, ventilate the area if safe to do so, evacuate the property, and call the gas emergency services from outside. Otherwise, check that gas supply is on, the flue terminal is clear, and the condensate pipe is not blocked. Try resetting the boiler. If the fault persists, contact a Gas Safe registered engineer.

What does error E01 mean on a Keston C36 boiler?

Error E01 on a Keston C36 boiler indicates ignition failure - the boiler has attempted to ignite five times without success. If you smell gas, do not operate any switches or appliances, ventilate the area if safe to do so, evacuate the property, and call the gas emergency services from outside. Otherwise, check that your gas supply is on and try resetting the boiler. If the error persists, contact a Gas Safe registered engineer.

What does error E40 mean on a Keston C36 boiler?

Error E40 on a Keston C36 boiler indicates high water pressure. Check that the filling loop is closed. If necessary, bleed a small amount of water from a radiator. If pressure continues to rise during heating, contact an engineer to check the expansion vessel.

What does error E70 mean on a Keston Qudos boiler?

Error E70 on a Keston Qudos boiler indicates cabinet overheat. This is a serious fault requiring a service reset. Allow the boiler to cool completely and contact a Gas Safe registered engineer immediately.

What does error E67 mean on a Keston Qudos boiler?

Error E67 on a Keston Qudos boiler indicates low water pressure below 0.4 bar. Use the filling loop to repressurise the system to approximately 1.2 bar. If pressure drops repeatedly, check for leaks and contact an engineer.

What error codes indicate a frozen condensate pipe on a Keston boiler?

On Keston Combi and System boilers, error codes L2 or F2 indicate possible frozen condensate. On Keston Heat boilers, the display shows "Check Condense". On Heat 2 boilers, ignition lockout or flame loss fault codes may appear. The boiler may also make a gurgling noise. If in doubt, contact a Gas Safe registered engineer.

Where do I find the serial number on my Keston boiler?

The serial number on a Keston boiler is typically found on the rating plate, which is usually located inside the front panel or underneath the boiler. The serial number is needed for warranty registration and when ordering spare parts. If you have the original service book, the serial number should also be recorded there.

How efficient are Keston boilers?

Keston boilers achieve SEDBUK efficiency ratings of 88% to 91% depending on the model, with seasonal efficiency up to 97% under Part L conditions. They are ErP A-rated and recommended by the Energy Saving Trust. The current Heat 2 range achieves Class 6 NOx emissions at less than 40mg/kWh, exceeding the Class 5 standard.

How can I save on energy bills with my Keston boiler?

Schedule an annual service to maintain peak efficiency. Keep the boiler pressure correct and bleed radiators regularly. Use programmable or smart thermostats to avoid heating when the home is empty. Turn radiators down or off in rooms that are rarely used. Consider lowering the flow temperature on modern condensing boilers.

What is the Benchmark commissioning checklist for Keston boilers?

The Benchmark commissioning checklist is a document completed by your Gas Safe registered installer when commissioning your Keston boiler. It confirms the boiler has been installed correctly according to manufacturer guidelines and Building Regulations. The completed checklist should be left with the boiler and is required for warranty validation. Keep it safe with your boiler documentation.