A fishy, plastic-like odor in your airing cupboard is a serious indicator of electrical issues. This smell arises when plastics, PVC, or cable insulation overheat and begin to melt, releasing a distinctive fishy scent. Common culprits include immersion heater switches, which often demand high electrical currents. If incorrect switches are installed, they can overheat, leading to burnout or fire. Loose connections in immersion elements can also cause overheating and emit this odor. It's crucial to address these smells promptly, as they signify that the electrical system is under distress and poses potential fire hazards. Immediate inspection by a qualified electrician is recommended to identify and rectify the source of the problem.
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