Aga Control Box Problems
Some AGA users have reported a persistent issue with the control box of their ovens. A common symptom includes the main oven not achieving its desired temperature, even when the thermostat is set at a high level. When inspected, it’s observed that the electric component that plugs into the transformer, particularly the lever above the pin (which appears to be attached to a float in the reservoir), doesn’t function as expected. As the temperature rises, the lever does elevate, but a gap remains between the pin and the lever. This gap might be inhibiting the increased flow of fuel, thereby causing irregularities in the heating pattern of the oven.
Potential Causes:
- Gap Between Lever and Pin: The gap between the lever and the pin seems to be a prime suspect. It’s believed that this gap might be preventing the mechanism from increasing the fuel flow when the thermostat demands more heat.
- Blocked Fuel Pathways: Blockages in various parts of the fuel system, including the oilways in the burner, oil inlet nipple, connecting elbow, metering column in the OCV (Oil Control Valve), filter in the OCV, blockage in the remote fire valve, or even a blocked filter in the oil supply pipe or tank outlet, can affect the functioning.
Clarifications:
- The lever in the control box is not magnetic, as suggested by some users. It operates on a different mechanism.
- The electronic control essentially uses a bi-metallic strip connected to a heater. When the heater heats the strip, it bends, subsequently actuating the valve pin. This system is regulated by a thermostat to maintain the temperature.
Possible Solutions:
- Professional Service: Several experts and users advocate against attempting a DIY solution, emphasizing the importance of professional intervention. Missteps can result in worsened conditions or damage.
- Regular Maintenance: Decarbonising the AGA might help. Ideally, this process should be conducted every six months. Given the complexity of AGA systems, periodic maintenance is critical to ensure its optimal performance.
- Checking Fuel Pathways: An AGA expert should check for blockages throughout the fuel system, as obstructions in any part can impact the efficiency of the oven.
- Consultation with Supplier: For those who have recently purchased or refurbished their AGA, it’s advisable to persist with consultations from the supplier or manufacturer to diagnose and rectify the issue.
Conclusion:
The AGA oven, while renowned for its performance, can sometimes face operational challenges. The issues with the control box, as discussed, are intricate, and understanding the nuances of the system is crucial. Proper diagnosis and professional intervention are pivotal for rectifying the issues and ensuring the AGA operates at its optimal efficiency.