PulsaCoil A Class
No Hot Water
If a PulsaCoil A-Class is not producing hot water, several possible issues could be causing the problem
Faulty Immersion Heater: The immersion heater in the PulsaCoil A-Class may be faulty or burned out, preventing it from heating the water.
Thermostat Malfunction: A malfunctioning thermostat can lead to inaccurate temperature readings or prevent the heater from turning on when needed.
Limescale Buildup: Over time, limescale can accumulate in the system, reducing the efficiency of the heat exchanger and affecting the water heating process.
Airlocks: Airlocks in the system can block the flow of hot water, preventing it from reaching the taps or shower.
Faulty Pump: If the pump that circulates water within the PulsaCoil A Class is faulty or not working correctly, it can hinder the distribution of hot water throughout the system.
System Pressure: Low system pressure can impact the circulation of water through the system, leading to inadequate hot water heating.
Electrical Issues: Problems with the electrical supply, wiring or the complex PCB board can leave the PulsaCoil A-Class with no hot water and failing to function properly.
Component Wear and Tear: Components such as valves, sensors, or seals may wear out over time, leading to issues with the heating system.
Insufficient water in the thermal store: Insufficient water in the thermal store can typically occur due to evaporation or leaks in either the internal thermal cylinder or immersion heater. If the thermostat sensor fails, or a relay remains stuck open, this can cause the system to steam or ‘kettle’, leading to internal water evaporation within the cylinder and ultimately resulting in a shortage of hot water at the tap outlets. You can assess your hot water levels independently by following our DIY video tutorial as a reference.
Failure of the external economy-seven time clock: This can prevent the ‘off-peak’ immersion from heating overnight, leaving the internal cylinder cold.
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