MK Group Boilermate

BoilerMate 2000

A gas or oil boiler heats the water in the BoilerMate 2000 thermal store via a coiled circuit located within the BoilerMate 2000, this water is pumped by the left-hand pump on the BoilerMate 2000, if the water temperature within the BoilerMate 2000 drops below the factory preset temperature it will send a signal to the pump and boiler to request additional heat until satisfied.  The middle pump circulates water around the radiator circuit via another coil fitted within the BoilerMate 2000 this only occurs when the heating controls are calling for heat.

When opening the hot tap, cold mains water is passed through a plate heat exchanger, sensors detect a drop in temperature and turn on the right-hand pump, this then draws through the hot thermal store water in the opposite chambers of the plate heat exchanger,  heat is transferred from the hot water in the thermal store to the cold mains water passing through the plate heat exchanger.

Gledhill BoilerMate boilers are backed by a comprehensive BoilerMate aftersales service provided by MK Group Limited.

MK Group service and support Gledhill BoilerMate products all year round. Their Engineers have an exceptional understanding of the BoilerMate range of hot water solutions because they specialize only in the service and repair of BoilerMate products.
Learn more about MK Group by visiting their website.

All parts and spares required for your BoilerMate are available from MK Group spares.
Learn more about MK Group spares by visiting their website.

Common faults associated with the BoilerMate 2000

No hot water – not enough hot water – not heating water – noise – kettling
leaks – mixing valve – timer – thermostat – reduced flow rate – lack of water
troubleshooting – faults


Lack of water within the thermal store
On top of a BoilerMate 2000 is an f & e tank (feed and expansion tank) the purpose of the f & e tank is to fill the thermal store with water. This may or may not have been installed with a ball valve.

If a ball valve connection has not been installed, you may find a manual filling point which will be operated by either turning a tap or isolation valve by means of screwdriver.

If the thermal store has emptied of water -usually through evaporation and/or leaks it can prevent the thermal store from working. If the water level falls too low, the heat exchanger coil ceases to be immersed in the thermal stores hot water. You may also experience noises of water flowing inside the unit. This is caused by the flow from the boiler feed discharging into the thermal store above the water level of standing water in the thermal store, making the ‘running water’ noise. This can be very bad for the system accelerating the corrosive process which results from the constant aeration and oxygenation of the circulating water inside the thermal store.

Simply by checking the level of the water in the f & e tank and if necessary toping it up to the waterline ridge, you could avoid an expensive call out for an engineer to do the this.


Central heating pump failure
It is common to experience central heating circulation problems with the BoilerMate 2000 due to the age of these systems the water inside the radiator circuit suffer from corrosion sludge and limescale build up. These deposits cause the central heating pump to seize up and burn out. Fitting a new pump gets the system working again but doesn’t address the underlying cause. A power flush of the heating circuit will generally be required.


Lime scale build up of the heat exchanger
The heat exchanger is a ‘metal brick’ located in the casing of your thermal store. It is common for the plate heat exchanger to become blocked with scale the output hot water temperature will reduce, and eventually the flow rate from the taps will reduce to a trickling. Replace the plate heat exchanger restore your thermal store to normal operation.


Sensor’s
If the hot water becomes unstable at both tap outlets and shower outlets the sensors (DHW & PHE) may have failed or may have become scaled. These sensors deliver the signal to the appliance control board which in-turn modulates the domestic hot water pump to control output tap temperature. Replacing the sensors will restore your thermal store to normal operation.


Central heating ‘on’
Failure of the appliance control board can cause this issue, replacing the appliance control board will restore your thermal store to normal operation.

 

 

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