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Potterton E110 Fault

The Potterton E110 error code indicates an overheat situation within the boiler. This condition occurs when the water temperature inside the boiler exceeds the maximum safe limit set by the manufacturer. An overheat condition can be triggered by several factors, each pointing to potential issues within the heating system that need addressing to ensure the boiler operates safely and efficiently. Causes of Potterton E110 Error CodeFaulty Thermostat: A malfunctioning thermostat may fail to regulate the boiler’s temperature properly, causing it [...]

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Potterton Common Fault and Error codes

Potterton boilers, like those of other manufacturers, use a system of fault and error codes to help diagnose issues within the boiler. These codes provide a quick way for homeowners and engineers to identify specific problems, facilitating faster troubleshooting and repairs. Here’s a rundown of some common Potterton boiler fault and error codes and their general meanings:E110: Overheat – This error occurs when the boiler’s water temperature exceeds the maximum safe limit. It could be due to a problem [...]

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Alpha E90 Fault

The Alpha E90 error code indicates a pressure switch fault within the boiler. The pressure switch is a safety device that monitors the pressure within the boiler’s system to ensure it operates within safe limits. If the pressure switch detects an issue, such as too much or too little pressure, it can prevent the boiler from firing up to avoid damage or unsafe conditions. Causes of Alpha E90 Error CodeFaulty Pressure Switch: The switch itself may be malfunctioning, leading to [...]

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Alpha E83/E84/E85 Faults

The Alpha boiler error codes E83, E84, and E85 are associated with faults in the Printed Circuit Board (PCB), which is the central control unit of the boiler. These codes indicate various issues with the PCB that can affect the overall functionality and efficiency of the boiler. The PCB is crucial for managing and coordinating the operation of different components within the boiler, so faults in this area require prompt attention. Causes of Alpha E83, E84, and E85 Error CodesE83: [...]

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Alpha E60 Fault

The Alpha E60 error code indicates a fan fault within the boiler system. This error arises when there is a problem with the boiler’s fan, which is crucial for ensuring the safe and efficient operation of the boiler. The fan helps expel combustion gases from the boiler and draws in fresh air needed for the combustion process. A fault with the fan can lead to operational issues, including safety risks due to improper venting of exhaust gases. Causes of Alpha [...]

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Alpha E50 Fault

The Alpha E50 error code signifies a fault with the Domestic Hot Water (DHW) temperature sensor. This sensor monitors the temperature of the hot water being supplied to taps and showers. A malfunction or discrepancy in the sensor’s readings can lead to issues with water temperature regulation, potentially resulting in water that’s too hot or too cold for comfort and safety. Causes of Alpha E50 Error CodeFaulty DHW Temperature Sensor: The sensor itself might be malfunctioning or damaged, leading to [...]

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Alpha E34 Fault

The Alpha E34 error code indicates a low system pressure fault within the boiler. This condition occurs when the water pressure in the central heating system drops below the minimum level required for optimal operation. Low system pressure can affect the efficiency and functionality of the boiler, leading to issues with heating and hot water supply. Causes of Alpha E34 Error CodeLeaks in the Heating System: Even small leaks in the pipework, radiators, or boiler components can cause a gradual [...]

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Alpha E28 Fault

The Alpha E28 error code indicates a fault with the flue system. This could mean there’s a blockage, disconnection, or some other issue with the flue that’s preventing proper venting of exhaust gases from the boiler. A functioning flue is critical for safe boiler operation, as it ensures harmful combustion gases are safely expelled outside the building. Causes of Alpha E28 Error CodeFlue Blockage: Debris, bird nests, or other obstructions in the flue can restrict the flow of exhaust gases. Incorrect [...]

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Alpha E25 Fault

The Alpha E25 error code indicates a “Dry Fire” condition. This fault occurs when the boiler attempts to operate without detecting the presence of water in the system, or when there’s insufficient water flow to carry out the heating process safely. It’s a protective measure to prevent damage to the boiler’s components from overheating due to the lack of water. Causes of Alpha E25 Error CodeLow Water Pressure: If the water pressure in the system drops too low, it might [...]

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Alpha E20 Fault

The Alpha E20 error code signifies a high system pressure fault within the boiler. This condition occurs when the water pressure in the heating system exceeds the maximum level recommended by the manufacturer, potentially leading to operational issues or damage to the boiler and its components. Causes of Alpha E20 Error CodeOverfilling: Adding too much water to the system during topping up can lead to excessive pressure. Faulty Expansion Vessel: The expansion vessel absorbs excess pressure from heated water. If it’s [...]

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