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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Keston C55 Manuals

Check pump direction on boiler and any external pumps. If thermal cut off switches have operated press in the red button.

Safety footwear and gloves are recommended PPE when lifting this appliance. Maximum return temperature exceeded.

Keston C C55P Manuals

Flues for gas appliances of rated input not exceeding 70kW BS Further distance it is pipe size should be greater. B30 Difference between flow and return temperatures too high. 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.


Since the units use standard 50 mm muPVC pipe for the flue and air intake systems the boiler is packed in a single box without additional flue kit. Flue Exhaust Connection Incorrect signal from fan. Keston Combi, Keston Heat, Keston Open the catalog to page Check boiler earth and probe condition.

Power has been reset whilst boiler was in lockout. The error code recorded for the lockout.

Keston C55

Boiler pump is in DHW overrun mode 2 mins. Check boiler for leaks. The C45 and C55 boilers can be fitted in compartments with very small clearances required around the appliance manuak to Section 1. Always isolate the electrical supply before opening heating elements. No power to boiler. Time in hours since last error occurred. Boiler is running fan prior to attempting ignition.

Flow thermistor not connected or faulty. Fit new element and reset thermal cut out output. Control box errors — possible faulty control box. Fire boiler and check for actual kezton temperature.


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. Possible air lock or circulation blockage.

Check other gas appliances in the house are working to confirm a supply is present in the property. Check the boiler has gas supply manuzl that it has been purged. For safety and economy reasons your boiler should be serviced annually.

However, the resulting weight will still be higher than considered acceptable for a one-man lift. If this fails to heat the cylinder the element has failed and should be replaced. Fan not rotating — check fan connection and fan for fault.