Keston Appliance Repair in Reddish North

What does error E02 mean on a Keston C36 boiler?

Error E02 on a Keston C36 boiler indicates false flame detection - the boiler is detecting a flame signal before ignition has started. This requires a Gas Safe registered engineer to check the power supply polarity and flame sensing electrode.

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 E05 mean on a Keston C36 boiler?

Error E05 on a Keston C36 boiler indicates fan failure - the boiler cannot detect fan rotation. Contact a Gas Safe registered engineer to check the fan operation and wiring connections.

What does error E52 mean on a Keston Qudos boiler?

Error E52 on a Keston Qudos boiler indicates flue overheat. This requires a service reset and professional inspection. Contact a Gas Safe registered engineer immediately.

What does error F9 mean on a Keston S30 boiler?

Error F9 on a Keston S30 boiler indicates an unconfigured PCB - the main circuit board requires configuration. Contact a Gas Safe registered engineer or Keston service to reconfigure the PCB.

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.

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.

Why does my Keston combi boiler preheat periodically?

Keston combi boilers have a preheat function that fires the boiler briefly, approximately every 90 minutes, to keep water in the hot water calorifier warm. This reduces waiting time for hot water at the tap. If the boiler is installed in a bedroom or noise-sensitive area, the preheat function can be switched off using the preheat switch on the boiler.

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.