KESTON C55 MANUAL PDF

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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Contact your Gas Supplier immediately. For safety and economy reasons your boiler should be serviced annually. You will need to call an qualified and experienced national Keston service engineer for further advice. These error codes will display in priority to all other information on the display. After clearing the issue, you will need to reset boiler press reset buttonso that boiler resumes operation.

C45 C40P C55 C55P – Keston Boilers – PDF Catalogs | Documentation | Brochures

Those boilers have a heat exchanger from stainless steel, lowest in class NOx emission class 5thanks to both boilres are designto provide super efficiency at condensing mode, giving smallest possible cabinet than can be safely hang on the wall. For indirect models you will need to turn off boiler heating option too. Always isolate the electrical supply before opening heating elements.

Confirm that power supply is reaching the elements. If thermal cut off switches have operated press in the red button. If this fails to heat the cylinder the element has failed and should be replaced. Fit new element and reset thermal cut out output. If this is incorrect please replace the cut-out switch. After this boiler will try to ignite. Keston Qudos 28h boiler has an unique feature of error history.

Before Keston boiler installation we advice that current meter should be checked to assure no failures to installation by meter faults or inability to provide demanded gas pressure. Gas pressures above or below these levels will cause internal pressure issues with the gas valve. Minimal size for inlet supply pipes is 15mm. Before installing Keston boiler, you need to first think of diving gas source to other gas appliance at your real estate. Pipe providing gas supply should be sized according to distance between meter and boiler.

Further distance it is pipe size should be greater. All Keston boiler repair and replacement parts are being supplied by national service boiler engineering team. All parts are being sourced by same manufactures used for original assets production. This way it guarantees quality, reliability and safety. There is one year guarantee for all ordered parts. Distances above or below 3 mm will affect ignition performance.

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All joints should be checked for soundness after servicing and before firing the appliance. Keston Boilers Guide All Keston gas boilers for your home including parts, troubleshooting and efficiency!

Keston Combi, Keston Heat, Keston Check the electrical circuits by testing short circuit, earth continuity and resistance to earth tests. Check correct electrical polarity. Ensure that the boiler has electrical supply correct to V.

Check the boiler has gas supply c5 that it has been purged. Ensure the boiler has an inlet gas pressure of 20 mbar at the gas valve. Servicing keton Appliance For safety and economy reasons your boiler should be serviced annually. Each Keston Boiler is displaying three types of codes: Reset button on a Combi boiler The most common block codes are included in the table below: Check pump direction on boiler and any external pumps.

Check wires on flow and return thermistors are not crossed B25 Flow temperature climbing too quickly. Possible air lock or circulation blockage B26 Low water pressure B28 No signal from fan. Possible fan disconnected or faulty.

Keston C C55P Manuals

B29 Incorrect signal from fan. B30 Difference between flow and return temperatures too high. The most common error codes are included in the table below: Code Meaning E00 Flame detected when not expected.

Check boiler earth and probe condition. E02 No ignition after restart. 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 E07 Flue overheat.

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 Internal electronics error — rest or replace control box E12 Thermal fuse blown or flue overheat thermostat activated.

E28 Fan not rotating — check fan connection and fan for fault. E30 Difference between flow and return temperatures too high. Check power supply flashing off off Boiler off on front. Turn User Control Knob to On. Reset boiler off then on via User Control Knob. Check circulation through system.

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Check by-pass fitted on off flashing Cabinet overheat.

Replace thermal fuse link 82OC. Check for heat leak from gaskets. Check pump and fan run-on working OK when controls shut blr down. Fire f55 and check for actual flue temperature. This is a spare sensor connection. This fault display indicates a fault on the wiring loom. The boiler has tried five times to fire and has not suceeded. Top up system pressure if sealed system.

Check boiler for leaks. The fan speed has dropped below rpm.

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Check fan, connections and fan pcb. Boiler in standby waiting for demand signal. Boiler is running fan prior to attempting ignition. Boiler has opened gas valve and is sparking at ignitor.

Keston C55: C55P Manuals

Boiler is alight and running in response to a demand from central heating i. Boiler is alight and running in response to a demand from DHW i. Temporary mode whilst boiler is adjusting internal settings. Burner is off because the boiler is up to temperature.

Boiler pump is in Central Heating overrun mode 2 mins. Boiler pump is in DHW overrun mode 2 mins. Flow temperature exceed 95o C.

Return temperature exceeded 95o C. Return temperature exceeded flow temperature. Check wires on flow and return thermistors are not crossed. Flow temperature climbing too quickly. Possible air lock or circulation blockage. No signal from fan.

Incorrect signal from fan. Difference between flow and return temperatures too high. Waiting for fan to start. Flame detected when not expected. No ignition after restart. Check gas supply, gas valve operation and ignitor electrode spark generation. Gas valve faulty or not connected. Power has been reset whilst boiler was in lockout.

Fan failure — boiler cannot detect fan rotation.

Flame circuit error — possible control box fault. Valve drive error — possible gas valve or control box fault. Control box errors — possible faulty control box. Internal electronics error — rest or replace control box. Thermal fuse blown or flue overheat thermostat activated. Flow overheat — check water circulation.

Maximum return temperature exceeded.