Should you replace a 2010 miccrowave hotpoint that smells hot
It depends on the reason for the hot smell - discovering this would mean a trip to the service shop and weighing the cost of that against a replacement microwave.
Unless your Hotpoint is something special, it is likely a replacement would make sense.
It is wise to periodically measure the power output of a microwave oven by timing the boiling of a measured quantity of water when it is young. When or if the time has extended more than about 10% it is time to think about service or replacement. It is also important to keep the inside of the cabinet clean and all the air vents clear.
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