Keston Appliance Repair in Queen Edith's

What does error E24 mean on a Keston C36 boiler?

Error E24 on a Keston C36 boiler indicates water pressure has been lost four times in 24 hours, suggesting a possible leak. Check around radiators and pipework for signs of water and contact a heating engineer to locate and repair any leaks.

What does error E07 mean on a Keston C36 boiler?

Error E07 on a Keston C36 boiler indicates flue overheat, which may signal a heat exchanger problem. Contact a Gas Safe registered engineer immediately for professional inspection.

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 E37 mean on a Keston C36 boiler?

Error E37 on a Keston C36 boiler indicates low water pressure. 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 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.

Can a Keston boiler be installed in a cupboard or enclosed space?

Keston boilers can be installed in cupboards or enclosed spaces provided there is adequate ventilation and access for servicing. The boiler requires clearance around it for maintenance. Room-sealed boilers take combustion air from outside via the flue, so the cupboard does not need air vents. Always consult a Gas Safe registered engineer for installation requirements.

How do I thaw a frozen condensate pipe on my Keston boiler?

Locate the condensate pipe, a white or grey plastic pipe running from the boiler through an external wall. Pour tepid water (not boiling) over the frozen section, or apply a hot water bottle around the pipe. Work from the top downwards. After thawing, press the restart button on the boiler.

What is twin flue technology on Keston boilers?

Twin flue technology uses two separate pipes for air intake and exhaust gases, rather than a single concentric flue. This allows the flue to extend up to 27 metres from the boiler, compared to around 10 metres for standard concentric systems. Twin flue is ideal for installations where the boiler cannot be positioned near an external wall, such as basements or internal plant rooms.

How do I reset my Keston boiler after a fault?

For most Keston models, press the Restart button on the boiler fascia. For models with a mode control knob, turn it to the Reset position, then immediately return it to the On position. Switching the boiler off and on at the mains will not clear a fault lockout.

How do I repressurise my Keston boiler?

Turn off the boiler and allow it to cool for at least an hour. Locate the external filling loop beneath the boiler. Attach the filling loop, open both valves slowly, and watch the pressure gauge until it reaches 1.0 to 1.5 bar. Close both valves, then remove and store the filling loop.