Gledhill Pulsacoil A Class Repair

Gledhill Pulsacoil A Class Repairs Are What We Do.

If the you require our services, please call 0800 046 1241. Below is more information Gledhill Pulsacoil A Class repairs.

Pulsacoil FAQ’s – Further information about all Pulsacoils
Pulsacoil Repair – Overall information on our service
Pulsacoil A Class – Information on Gledhill Pulsacoil A Class
Pulsacoil A Class Manual – Official Gledhill Pulsacoil A Class manual
Pulsacoil A Class Repair – Tips on Gledhill Pulsacoil A Class repairs
Gledhill Pulsacoil A Class Spares
Pulsacoil BP – Information on replacement system for Gledhill Pulsacoil A Class

Information On Gledhill Pulsacoil A Class Repairs

PulsaCoil A Class systems are thermal stores, rather than hot water cylinders. Like conventional hot water cylinders, a thermal store is a container filled with hot water but here the similarity ends. Once filled, the water in a thermal store never changes. Instead, the heat stored in it is used to heat the tap water using a heat exchanger. This allows the hot tap water to be delivered at full mains pressure, and is one of the primary benefits of installing a thermal store instead of a conventional hot water cylinder.

Gledhill Pulsacoil A Class Repairs Specialist

Gledhill Pulsacoil A Class Repairs Specialist

The Gledhill PulsaCoil transfers heat into the tap water using a pump and an external ‘plate heat exchanger’. A plate heat exchanger is a block of very thin stainless steel plates arranged so that cold mains water can flow through one set of spaces between the plates, and hot water from the thermal store core can flow through an alternate spaces. Heat transfers through the plates and heats the cold mains water on it’s way to the hot tap.

We would highly recommend you do not use anyone who does not have previous experience in carrying out Gledhill Pulsacoil A Class repairs.

So before you get your Gledhill Pulsacoil A Class repairs carried out by us or anyone else, read this page and request our Pulsacoil self check mini guide.

How does the PulsaCoil A-Class work?

An immersion heater heats the water inside the Gledhill Pulsacoil A Class. A thermistor (heat sensor) is attached to the domestic hot water outlet from the plate heat exchanger. When the thermistor records a fall in temperature, the circuit board inside the Gledhill Pulsacoil A Class runs the pump. The pump circulates stored hot water through the plate heat exchanger, heating it, and the circuit board turns it off again when the thermistor reports a temperature rise. This system is proportional. The bigger the temperature fall seen by the thermistor, the faster the circuit board runs the pump. This way the designed flow temperature (of 52 degrees Celsius, I think) can be maintained at almost any flow rate when a hot water tap is turned on, or shower is turned on.

Common problems found when Gledhill Pulsacoil A Class repairs are carried out

The Gledhil PulsaCoil A Class is a relatively new model so unlike the other models previous to it, below are common fault when we are called out to Gledhill Pulsacoil A Class repairs:

Gledhill Pulsacoil A Class Repairs Info #1) Red light flashing once per second:
There is a red LED indicator on the front panel of a Gledhill PulsaCoil A Class. The label next to it says “Fault attention required” if flashing. On some early batches of Gledhill Pulsacoil A Class this can light flash during normal operation, even when there is no fault present, and the label incorrectly suggests a fault has occurred. Also it can occur if the relpol relay has been removed from the Gledhill Pulsacoil A Class assembly rail.

On the early versions, the red light flashing once per second simply means that the unit has cooled and may be re-heated immediately using daytime electricity if the user wishes, by pressing the black ‘On Peak Boost button’. There is no particular need to do this unless more hot water is needed immediately. The unit will re-heat automatically at night if the econmoy 7 timer is set correctly or the external timer has been set correctly. Installation which have a mains supply supplying the Gledhill Pulsacoil A Class off-peak immersion element 24/7 will not allow you to use the boost function. This is not the right way to have your Gledhill Pulsacoil A Class operate. Before calling us to carry out your Pulsacoil A Class Repairs, check by pressing the Black Boost Button when the system is cool.

Gledhill Pulsacoil A Class Repairs Info #2) Burned out power relay.
A short section of wiring to the Off-Peak heater on a Gledhil PulsaCoil A Class has a habit of burning out, along with the power relay. When this happens the red light flashes and the unit only produces hot water if the user presses the black button next to the flashing red light (this might not work either in some cases as the burnt relay sits next to another relay which could have been damaged to inside the Gledhill Pulsacoil A Class). The burned out section of wiring and relay can be easily replaced. We would not recommend you replace them for the identical relay, we provide a retro kit which is less likely to burn.

When having your Gledhill Pulsacoil A Class repairs carried out, ensure the engineer inspects the on-peak relay for signs of damages due to heat and the bottom part of the PCB board which sits above the off-peak relay. The PCB board may look fine but we recommend a display test is carried out to establish if it is really working correctly.

Gledhill Pulsacoil A Class Repairs Info #3) Depleted water in the thermal store:
A Gledhill PulsaCoil A Class is filled with water using a small header tank installed separately above the unit. This is not always permanently connected to the mains supply (, which means water lost from the thermal store through evaporation and (or) leaks needs to be replaced manually (If the Gledhill Pulsacoil is leaking, check for leaks as it could be dangerous). If the water level in the Gledhill PulsaCoil A Class falls too low, the pump simply does not have enough water to pump through the heat exchanger when a hot tap is turned on, and the unit will not deliver hot water. The problem starts intermittently, and the unit runs noisily. The answer is to check the water level in the header tank and top it up to the waterline moulded into the wall of the tank.

If the is happen frequently, call us out to carry out your Gledhill Pulsacoil A Claas repairs and we will inspect the unit.

Gledhill Pulsacoil A Class Repairs Info #4) Immersion heater element failure.
The unit fails to heat up. Easily diagnosed by measuring the resistance of the heater element inside the Gledhill Pulsacoil A Class system. Also we would recommend whoever is carrying out your Gledhill Pulsacoil A Class repairs, inspect between neutral to earth for leakage and ensures 230v are present between live and neutral.

One more thing, check the elements and Gledhill Pulsacoil A Class for leaks when having your Gledhill Pulsacoil A Class repairs carried out.

Gledhill Pulsacoil A Class Repairs Info #5) Water scale-contaminated plate heat exchanger.
The plate heat exchanger is prone in some areas to water scaling. This presents as maximum water temperature becoming progressively lower, and in the final stages of scaling, the flow rate from the taps reducing too. The fix is to either fit a new plate heat exchanger, or to de-scale the existing heat exchanger using conventional de-scaling techniques.

Before calling any engineer to carry out your Pulsacoil A Class repairs, request our self check Pulsacoil mini guide which has help many tenants, landlords and estate agents.

If you have a Gledhill Pulsacoil A Class no hot water problem, or a Gledhill Pulsacoil no hot water problem, we can help.

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