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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Open the catalog to page 5. Check fan, connections and fan pcb. Related Searches Residential boiler Design water heater Wall-mounted boiler Free-standing water heater Vertical water heater Combined water heater Gas boiler Design boiler Electric water heater Commercial boiler Solar water heater.

Troubleshooting Manual | Keston Boilers Guide

Minimal size for inlet supply pipes is 15mm. The most common error codes are included in the table below: Fan failure — boiler cannot detect fan rotation. Actual Flue Temperature — display indicates the mamual and fan symbols NB: The integral Grundfos pump is automatically controlled to best match Keston Combi, Keston Heat, Leston Check power supply flashing off off Boiler off on front. 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.


The fan speed has dropped below rpm.

Flue temperatures above 80C will cause boiler lockout. 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. For indirect models you will need to turn off boiler heating option too.

Since the units use standard 50 mm muPVC pipe for the flue and air intake systems the v55 is packed in a single box without additional flue kit. Boiler needs resetting- follow resetting instructions. Contact a qualified electrician or your electricity provider. Valve drive error — possible gas valve or control box fault. Check the electrical circuits by testing short circuit, earth continuity and resistance to earth tests.

Boiler pump is in Central Heating overrun mode 2 mins.

Keston C55: C55P Manuals

Open the catalog to page 2. Check the system pump performance and the system for blockages. Maximum return temperature exceeded. If this is incorrect please replace the cut-out switch. These error codes will display in priority to all other information on the display.

Distances above or below 3 mm will affect ignition performance. Outside temperature — display indicates a small graph on the bottom row. Return temperature exceeded 95o C.


Fire boiler and check for actual flue temperature. Top up system pressure if sealed system.

Boiler Manuals: Keston C55

Check correct electrical polarity. Check other gas appliances in the house are working to confirm a supply is present in the property. Return thermistor not connected or faulty. They comprise a high efficiency stainless steel heat exchanger coupled with a low emissions burner to deliver ultra high efficiency condensing mode operation within a compact wall hung cabinet.

Replace thermal fuse link 82OC. Servicing your Appliance For safety manuwl economy reasons your boiler should be serviced annually. Boiler is running fan prior to attempting ignition. This fault display indicates a fault on the wiring loom. Code Meaning E00 Flame detected when not expected. B29 Incorrect signal from fan.

Boiler has opened gas valve and is sparking at ignitor. Flue Exhaust Connection Internal electronics error — rest or replace control box. No power to boiler.

Air Supply for gas appliances of rated input not exceeding 70kW BS Flame circuit error — possible control box fault. E02 No ignition after restart. Time in hours since last error occurred. Due consideration should therefore be given to access Air Intake Connection