Keston Appliance Repair in Quedgeley Fieldcourt

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 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 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 pressure should my Keston boiler be at?

The ideal pressure for a Keston boiler is between 1.0 and 1.5 bar when the system is cold. This is displayed on the pressure gauge on the front of the boiler. Pressure naturally rises slightly when the heating is on. If pressure drops below 0.3 bar, the boiler will stop operating.

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.

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.

Why are my radiators cold when my Keston boiler is running?

The most common causes are low boiler pressure, trapped air in the radiators, stuck thermostatic radiator valves, a faulty circulation pump, or sludge buildup. Check the pressure gauge first and repressurise if below 1.0 bar. Then try bleeding the radiators to release trapped air.

How do I bleed radiators on my Keston heating system?

Turn on your heating and identify radiators that are cold at the top. Turn off the boiler and allow radiators to cool. Place a container beneath the bleed valve and use a radiator key to turn it anti-clockwise. When water begins to dribble out, close the valve. Check boiler pressure afterwards and repressurise if needed.