Keston Repair Service in Millfield

What does error E28 mean on a Keston boiler?

Error E28 on a Keston boiler indicates a fan fault preventing safe operation. Contact a Gas Safe registered engineer to inspect and test the fan.

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 E44 mean on a Keston C40 or C55 boiler?

Error E44 on a Keston C40 or C55 boiler indicates low water pressure. Use the filling loop to add water until pressure reaches approximately 1.2 bar. If pressure drops repeatedly, check for leaks and contact an engineer.

What does error F2 mean on a Keston S30 boiler?

Error F2 on a Keston S30 boiler indicates flame loss during operation. 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 if the condensate pipe is frozen and thaw if necessary. Try resetting the boiler. If the fault recurs, 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.

How do I register my Keston boiler warranty?

Your Keston boiler warranty must be registered within 30 days of installation to qualify for the full warranty period. If not registered within 30 days, the warranty is limited to 12 months. Your installer may have already registered the warranty on your behalf. To check or register, you will need the boiler serial number and installation date.

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 do I adjust the hot water temperature on my Keston combi boiler?

On Keston combi boilers, the domestic hot water temperature is adjusted using the hot water temperature knob on the control panel. The temperature can be set between approximately 40 and 65 degrees Celsius. A setting of 50 to 55 degrees is recommended for safety, as this prevents scalding while being hot enough to prevent bacterial growth.

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.

Are Keston boilers compatible with smart thermostats?

Keston boilers are compatible with OpenTherm technology, which allows communication between the boiler and smart thermostats. OpenTherm-compatible thermostats enable the boiler to modulate its output for improved efficiency and comfort. Popular smart thermostats with OpenTherm support can achieve energy savings of up to 14 percent compared to standard on-off controls.