Flickering lights when the washing machine starts or when the air conditioner turns on can indicate an issue with your electrical system. While it's not possible for me to assess the situation directly, I can provide you with some general information and considerations:
Voltage Fluctuations: The sudden power draw from high-demand appliances like washing machines and air conditioners can cause voltage fluctuations in your electrical system. These fluctuations may result in flickering lights. However, minor flickering that lasts only for a brief moment may not necessarily indicate a severe problem.
Wiring or Circuit Overload: If the flickering is persistent or accompanied by other signs, it could indicate wiring or circuit overload. This means that the electrical system may not be adequately handling the power demands of the appliances, which could lead to overheating or potential fire hazards.
Loose Connections: Flickering lights can also be caused by loose electrical connections. The sudden power draw from appliances starting up can exacerbate the issue and cause intermittent flickering.
Quality of Electrical Installation: It's important to consider the quality of the electrical installation in your new house. If the wiring or circuits were not properly installed or if the electrical system is not adequately sized for the power demands, it could contribute to the flickering issue.
Safety Concerns: While flickering lights alone may not pose an immediate danger, they could be indicative of underlying electrical problems that, if left unaddressed, could lead to more significant issues such as electrical fires or damage to appliances.
Given the potential safety risks and the persistence of the flickering lights, it is advisable to consult a qualified electrician to evaluate your electrical system. They can assess the situation, identify the root cause of the flickering, and determine if any corrective measures are necessary.
It's worth discussing your concerns with your builder and emphasizing the importance of addressing the issue, especially if it persists or if you notice any other electrical anomalies. Ensuring the safety and proper functioning of your electrical system is crucial, and seeking professional advice is the best course of action.