Boiler trips rcd within 30 minutes

[Andystraughan]

Hi guys

im going to have a look at a job tomorrow night. The lady states for the last 10 months! The boiler has been tripping the rcd on and off. You turn the central heating on and it trips in about 30 minutes. The women was a bit vague over the phone as she also says it trips with hot water being turned on as well. Some times 30 minutes some time 10 minutes sometime straight away.. she only wants me to have a visual look as i mentioned as soon as tools/tester comes out charges apply. Its a baxi boiler 5 year old. Wiring is ancient (her words) my question is what quick checks can i do to see whats causing it? Can it be the switching when the room has reached desired temperature? Simple bad connection? She also mentioned she has really bad damp. And had a plumber out to fix a gas leak, he looked for damp behind spur and said the wiring is shambles (his word) just the 30 minute rcd trip time is a bit confusing so any ideas on what to look out for would be great. This is tomorrow nights job Remember no tools/no megger Maybe a screw driver lol

cheers
andy

 

[Geordie Spark]

Hi guys

im going to have a look at a job tomorrow night. The lady states for the last 10 months! The boiler has been tripping the rcd on and off. You turn the central heating on and it trips in about 30 minutes. The women was a bit vague over the phone as she also says it trips with hot water being turned on as well. Some times 30 minutes some time 10 minutes sometime straight away.. she only wants me to have a visual look as i mentioned as soon as tools/tester comes out charges apply. Its a baxi boiler 5 year old. Wiring is ancient (her words) my question is what quick checks can i do to see whats causing it? Can it be the switching when the room has reached desired temperature? Simple bad connection? She also mentioned she has really bad damp. And had a plumber out to fix a gas leak, he looked for damp behind spur and said the wiring is shambles (his word) just the 30 minute rcd trip time is a bit confusing so any ideas on what to look out for would be great. This is tomorrow nights job Remember no tools/no megger Maybe a screw driver lol

cheers
andy

I can understand a boiler tripping an RCD off but can't for the life of me understand how the Hell it can trip it back on!!!

 

[Guest111]

I can understand a boiler tripping and RCD off but can't for the life of me understand how the Hell it can trip it back on!!!

I think he meant intermittently lol

 

[trev]

I can understand a boiler tripping an RCD off but can't for the life of me understand how the Hell it can trip it back on!!!

Howay back to pedant's corner fatha.

 

[southsea1201]

A tripping RCD can be difficult at the best of times. Had 1 on Monday. Without test instruments you are p*ssing in the wind. A IR test is a must...a screwdriver comes after the test

 

[bigdavs83]

Surely you need a screwdriver to disconnect the cables with which to carry out an IR test!!

 

[southsea1201]

Surely you need a screwdriver to disconnect the cables with which to carry out an IR test!!

hehehe of course and to take the lid of the CU

 

[Geordie Spark]

Howay back to pedant's corner fatha.

Haeye bin keepin it warm forris son??

 

[bigdavs83]

Whooooops! Schoolboy error just a slip I'm sure

 

[trev]

Surely you need a screwdriver to disconnect the cables with which to carry out an IR test!!

Ye cin sit next to me Da

Haeye bin keepin it warm forris son??

Whey aye Fatha

 

[telectrix]

@ OP. if still here. if you don't want to be getting the tester out, just clout the valves, pump, and the boiler pipes with a hammer. Pi$$ in the header tank, then charge £250. ( oh, sorry, your a sparks, not a PLUMBER )

 

[snowhead]

Water and electricity don't mix.
Find where uncontained water is near to electrical connections on the boiler circuit and you'll find the problem.

It'll be a small leak hence the time delay.

 

[Geordie Spark]

@ OP. if still here. if you don't want to be getting the tester out, just clout the valves, pump, and the boiler pipes with a hammer. Pi$$ in the header tank, then charge £250. ( oh, sorry, your a sparks, not a PLUMBER )

Howayman .... stop givin' wor trade secrets away!!!!

 

[Dizzy_Maskell]

Think you need the old classic "that's a particular trate of this model" it's a well known problem in the industry and actual everything is fine.

 

[BlueToBits]

Had a similar problem some years ago. Turned out to be a length of expanding and contracting pipe crushing a cable against a wall under the floor boards.