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I Have two storage heaters where when being used the pole switch switch becomes warm hot is this normal?
BB71
A switch becoming hot is not normal. The cause could be loose connections where the wires join the switches terminal points. This could be the cause of the heat being generated. Misalignment of the switch blades inside the switch can also cause the heat to appear. Another cause could be that the heater loads are higher that the amp rating of the switch. Switches have a label on the side of them rating what the current carrying capacity of the switch is and what the maximum amount of current that the switch can legally tolerate.
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