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.
What are the problems with the Keston boiler?
Top 6 Keston Boiler Problems Keston Boiler Problems Keston Error / Fault Code Ignition failure E01 or E02 No hot water but heating works – Radiators not heating up – Low boiler pressure F1
What does 9 NN mean on a Keston boiler?
During this block time the block code will be displayed, alternately with the code “9 nn”, where nn is the boiler flow temperature) error codes (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)
How does the Grundfos work on a Keston boiler?
Boilers have a function of automaticly adjusting gas and air usage to demanded output of 12.6kW to 44.9kW (C45 & C40P) and 14.3kW to 55.2kW (C55P and C55). The integral Grundfos pump is automatically controlled to best match water flow rate to heat output & further increase appliance efficiency.
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.
During this block time the block code will be displayed, alternately with the code “9 nn”, where nn is the boiler flow temperature) error codes (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)
Boilers have a function of automaticly adjusting gas and air usage to demanded output of 12.6kW to 44.9kW (C45 & C40P) and 14.3kW to 55.2kW (C55P and C55). The integral Grundfos pump is automatically controlled to best match water flow rate to heat output & further increase appliance efficiency.
What do I need to know about my Keston boiler?
Check pump direction on boiler and any external pumps. 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. Possible fan disconnected or faulty. Incorrect signal from fan. Possible fan faulty.
