The reason your cables are burnt is because heat has built up in the connection to the switch. The cable must be clean and securely clamped to ensure minimum resistance.

Why would a switch burn out?

Arcing occurs when wires don’t make a strong connection with terminals inside the switch plate. When you turn on the switch, sparks can ignite the plastic switch plate, resulting in smoking, melting, and burning. If you see sparks coming out of your light switch, turn off the power and call an electrician immediately.

Is it OK to leave a shower isolator switch on?

It should be turned off whenever electrical work needs to be done on the shower (so not quite “never”).

How do I fix my shower pull switch?

Quote from the video:
Quote from Youtube video: That you'll take your new one once you get the new one it slides into place use that same allen wrench lock that screw back in place now on a three handle tub and shower valve.

What amp should a shower switch be?

Electric Shower Power Ratings and Power Cable Information

Fuses and switches should be rated at 32 amps. Showers up to 9kw may carry a 6mm cable as long as the shower unit is within 18 meters of the fuseboard. Fuses and switches should be rated at 40 amps.

Does a shower switch have a fuse?

Assuming that you find one labelled shower, you should be able to get some details from it on what amperage the fuse/circuit breaker is. Normally for a shower it woul be a 40 or 45amp fuse/circuit breaker.

Should the red light stays on shower switch?

The main issue has to do with when you notice the shower pull switch light stays on all the time. If the shower pull light stays on, the permanent live conductor has likely been connected to the load side. To fix this, switch how the shower pull light is wired and make sure it’s connected to the right side.

Why is my shower blowing the fuse?

If it’s tripping your fuse box then it’s probably a heating element fault, possible short circuit at high temp / small crack in heating element. You could try running the shower on the lowest temperature for a while to see if it’s related to heating, if it is, it’s probably a new shower.

Why is my electric shower not working?

Number 1: There is no water coming from the shower at all, or it stops and starts. This is it, the most common fault with electric showers – the solenoid valve. If you find the shower stops working completely, or indeed cuts off (very often when you have soap in your hair) this is the culprit.

How long should an electric shower last?

Although the elements are built to last, they may need replacement after about four years, which is the average lifespan of an electric shower. Electric showers typically last for around four years before they need replacement.

Can an electrician fix a shower?

if you just want a replacement shower in the same location as the old one, then a plumber who is competent with electrics is good for the job. On the other hand, an electrician who is competent to do the plumbing can also do the job.

What causes an electric shower to trip?

Overload. The most common reason why you water heater is tripping the circuit breaker is overload. A number of appliances can cause an overload if they malfunction, but shower heaters can cause that even if they’re working properly.