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Is it the light or the switch? The light sound is generally the sound of the electronic ballast, which may be a quality problem or a matching problem, and the switch is generally a poor contact and needs to be replaced, otherwise a fire may occur.
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It may be a problem with the rectifier, find someone who can install lights or an electrician.
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It may be that the light switch is in poor contact, so replace the switch panel.
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There is a problem with the lamp regulator...
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The screws in the switch are loose, and the screws can be tightened after the switch is disassembled, note: if there is electricity, turn off the main switch of the power supply (that is, the air switch in the distribution box) before operating.
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There is a problem with the ballast, it would be nice to replace it with a new one.
This is the work of the ballast inside the lamp, which is an abnormal phenomenon. Check the accessories inside or replace them.
Is there a shortage of oil, add some lubricating oil to the door pivot and try it.
Was there a wire inside the crack in the wall before?
If it is a wire and there is a wire splice, there may be a poor contact, causing a noise. >>>More
This sizzling sound, you check to see if the gas pipe is leaking. If the faucet is not closed tightly, even small leaks are possible. The sound of the sewer, as long as you are not flushing, and if you are not flushing upstairs, it should not make this sound.
The sound is the sound when it is through the valve, as long as the waterproof layer of the bathroom is not damaged during the decoration, it will not leak.