How do boilers and radiators work?

Steam radiators are connected to a boiler given the task of heating up water. The boiler heats water until it forms into steam. The steam then travels up through the vertical pipe to the radiator where the thermal energy is given off through the fins.

How to fault find a Keston c40p boiler?

Page 40 WD265/0/2002 Chapter 5 : Fault Finding The Keston C40, C40P, C55 & C55P 5.7.5 Exploded Diagrams Parts Reference List Boiler Controls Assembly (Fig. 5.7.1) GC Number Code Description E93-126 C55/C55P/C40 Main Control Box (C.17.4.01.00.0) E93-127 C40P Main Control Box (C.13.4.03.00.0) E93-130 Control Panel (C.17.4.02.00.0)

What are the status codes on the Keston C40?

The table below shows the range of status codes which will be… WD265/0/2002 Chapter 5 : Fault Finding The Keston C40, C40P, C55 & C55P 5.3.2 LOCKOUT If the fault is persistent or more severe the boiler will lockout with a error code. When the boiler has entered this error mode it will not attempt to restart until the “Reset” button is pressed.

What kind of water treatment does Keston C40 use?

INITIAL FLUSHING All waterways within the Keston C40 and C55 are either copper, high alloy stainless steel or aluminium. As a result water treatment chemicals for central heating boilers such as Fernox MB1, Sentinel X100 or equivalent, are suitable.

Where does the hot water go in a Keston boiler?

Keston combi boilers have a diverter valves that directs hot water to either the central heating system or the hot water tap, depending which you’ve turned on. Chances are, the diverter valve is stuck, meaning that all the hot water is being sent to the radiators rather than the taps.

What does the E44 code mean on a Keston boiler?

On Keston C40 and C55 combi boilers, you’ll see the E44 error code to let you know there’s low water pressure. Low pressure needs to be increased to something more sufficient (between 1 and 2 bar), any higher than 2 and you’ll have the opposite problem as the pressure will be too high.

How do you troubleshoot a Keston combi boiler?

When troubleshooting your Keston Combi boiler please follow the following logical fault finding procedure Electrical Safety Checks. Check the electrical circuits by testing short circuit, earth continuity and resistance to earth tests. Check correct electrical polarity. Electrical Supply.

Do you need an engineer to bleed a Keston boiler?

You will need to bleed the radiators which doesn’t require an engineer unless you don’t feel like carrying out the task yourself. When there’s something wrong with you Keston boiler, you’ll see an error symbol appear on the screen, usually a capital letter followed by a number.