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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Boiler pump is in DHW overrun mode 2 mins. Flue Exhaust Connection After clearing the issue, you will need to reset boiler press reset buttonso that boiler resumes operation. This way it guarantees quality, reliability and safety. For indirect models you will need to turn off boiler heating option too.

Flues for gas appliances of rated input not exceeding 70kW BS Code Meaning E00 Flame detected when not expected. Minimal size for inlet supply pipes is 15mm. Air Supply for gas appliances of rated input not exceeding 70kW BS Keston Boilers Guide All Keston gas boilers for your home including parts, troubleshooting and efficiency! Safety footwear and gloves are recommended PPE when lifting this appliance.


Before installing Keston mqnual, you need to first think of diving gas source to other gas appliance at your real estate.

Keston C55 Manuals

Top up system pressure if sealed system. Flow temperature climbing too quickly.

All joints should be checked for soundness after servicing and before firing the appliance. Fire boiler and check for actual flue temperature. Fit x55 element and reset thermal cut out output.

Fan failure — boiler cannot detect fan rotation. Auto Air Vent 4. Boiler off on front.

Troubleshooting Manual | Keston Boilers Guide

Check the system pump performance and the system for blockages. Flow thermistor not connected or faulty. All Keston boiler repair and replacement parts are being supplied by national service boiler engineering team. 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.

Boiler is alight and running in response to a demand from DHW i. Open the catalog to page 7. Check the boiler has gas supply and that it has been purged.


Difference between flow and return temperatures too high. Check circulation through system. All additional components are packed inside the boiler cabinet itself. Check power supply flashing off off Boiler off on front. Confirm that power supply is reaching the elements. For safety and economy reasons your boiler should be serviced annually. Open the catalog x55 page 6.

Keston C55

E28 Fan not rotating — check fan connection and fan for fault. Check boiler earth and probe condition. The C45 and C55 boilers can be fitted in compartments with very small clearances required around the appliance refer to Section 1.

Possible fan disconnected or faulty. Boiler lost flame whilst running.

Since the units use standard c555 mm muPVC pipe for the flue and air intake systems the boiler is packed in a single box without additional flue kit. Flue temperatures above 80C will cause boiler lockout.