Manuals and User Guides for Keston C C55P. We have 1 Keston C C55P manual available for free PDF download: Installation And Servicing Instructions. Keston C55 Pdf User Manuals. View online or download Keston C55 Installation And Servicing Instructions, User Instructions. WD The Keston C45, C40P, C55 & C55P CONTENTS Section Description 0 HANDLING INSTRUCTIONS List of contents Recommended handling.

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Flame circuit error — possible control box fault. The boiler has tried five times to fire and has not suceeded. Open the catalog to page 2. System water pressure, in bar. Further distance it is pipe size should be greater. However, the resulting weight will still be higher than considered acceptable for a ekston lift.

Open the catalog to page 3. Check other gas appliances in the house are working to confirm a supply is present in the property.

Check wires on flow and return thermistors are not crossed B25 Flow temperature climbing too quickly. All additional components are packed inside the boiler cabinet itself. E28 Fan not rotating — check fan connection and fan for fault.

Check by-pass fitted on off flashing Cabinet overheat. Power has been reset whilst boiler was in lockout. Return thermistor not connected or faulty. Possible fan disconnected or faulty. E08 Flame circuit error — possible control box fault E09 Valve drive error — possible gas valve or control box fault E10 Control box errors — possible faulty control box E11 Maual electronics error — rest or replace control box E12 Thermal fuse blown or flue overheat thermostat activated.


For safety and economy reasons your boiler should be serviced annually.

Open the catalog to page 4. Difference between flow and return temperatures too high. Internal electronics error — rest or replace control box. Open the catalog to page 6.

B30 Difference between flow and return temperatures too high. Temporary mode whilst boiler is adjusting internal settings. Boiler pump is in Central Heating overrun mode 2 mins. External controls not calling for heat. Check the system pump performance and the system for blockages. Only relevant if an outside temperature sensor c555 detected.

Due consideration should therefore be given to access The integral Grundfos pump is automatically controlled to best match Check gas supply, gas valve operation and ignitor electrode spark generation E03 Gas valve faulty or not connected E04 Power has been reset whilst boiler was in lockout E05 Fan failure — boiler cannot detect fan rotation Kexton Flue overheat.

Open the catalog to page 7. Check pump direction on boiler and any external pumps. Replace thermal fuse link 82OC. Check the boiler has gas supply and that it has been purged. Boiler needs resetting- follow resetting instructions. manua

Keston C C55P Manuals

Boiler is alight and running in response to a demand from central heating i. All joints should be checked for soundness after servicing and before firing the appliance. This fault display indicates a fault on the wiring loom. Keston Combi, Keston Heat, Keston The error code recorded for the lockout. D55 temperatures above 80C will cause boiler lockout. These error codes will display in priority to all other information on the display.


If this is incorrect please replace the cut-out switch. Safety footwear and gloves are recommended PPE when lifting this appliance. Incorrect signal from fan. Auto Air Vent 4.

Check for heat leak from gaskets. Possible air lock or circulation blockage. Waiting for fan to start.

Keston C55 Manuals

Return temperature exceeded flow temperature. Before installing Keston boiler, you need to leston think of diving gas source to other gas appliance at your real estate. The most common error codes are included in the table below: General Instruction The Keston C45, C40P, C55 and C55P the flueway and is drained at the base of the flue connection to the heat exchanger or drain points within the flue.

There is one year guarantee for all ordered parts. Flow temperature exceed 95o C.

Boiler is running fan prior to attempting ignition.