Flicker, heat and other faults worth describing
You do not need the cause. You need a clear account of the symptom, because a loose connection, a failing appliance and an overloaded circuit can look similar from the room.
Worth putting in the request
Lights that flicker when a particular appliance starts. A power point or switch that is warm, cracked or discoloured. A buzzing or crackling from a fitting or the board. Power that dies in one room only, or only when it rains. A burning smell with no obvious source. An outdoor fitting full of water. Any of those is a reason to ask a licensed electrician, and the first four are a reason to stop using that point until someone has looked.
A short test you can do safely
If one appliance trips a safety switch, unplug it and see whether the switch will reset. If it will, leave that appliance out and name it in the request. If the switch will not reset with everything unplugged, or you can smell burning, leave the circuit off. Do not keep resetting it to "see if it holds".
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