Hot tub problem

[Arsenal2020fc]

Hi guys my hot tub has been fine for the past year but now when the heater turns on it trips my guess is a faulty heater if this is not the case do you have any ideas what it is most likely to be ? Thanks

 

[Spoon]

Hi guys my hot tub has been fine for the past year but now when the heater turns on it trips my guess is a faulty heater if this is not the case do you have any ideas what it is most likely to be ? Thanks

What does it actually trip, the RCD or breaker.
Could be a faulty heater or water ingress into the connections.

 

[Arsenal2020fc]

What does it actually trip, the RCD or breaker.
Could be a faulty heater or water ingress into the connections.

It trips the breaker , and thanks I suspected it may be that

 

[telectrix]

is it a MCB or a RCBO? very unlikely to trip a MCB unless you have a short.