What could be the problem here?

[martyc]

Hi guys,
I was thinking of changing my boiler but from advice here Im going to have a crack @ fixing it.
Its an Ideal Classic NF 50 for what its worth.

This is how it acts.....
It might work for an hour maybe more then it trips out and stays off...it will come back on again if i sharply tap the little control box inside it. (this is the little control box that houses the thermostat controller)


Im guessing there are dirty contacts or something like that...any ideas...oh yeah the higher i set the temperature the more likely/earlier it trips out.
Im quite handy with both electrics and plumbing so absolutely no problems pulling wires out and doing some troubleshooting.

Cheers,
Marty.

 

[gas_man_gaz]

sounds a bit pcb'ish

 

[giblets]

Dry joint on pcb opening up when the boiler gets warm.

 

[martyc]

Cheers guys will run over the joints with a soldering iron whilst its in transit to the shed!!
Marty.