Triton Opal 2 Low pressure fault.
For all of you out there who have tried the micro switch (which is actually called a tactile switch) and found it to be ok whilst still showing the LOW PRESSURE FAULT, here is a solution which worked for me.
If you are not compitent with a soldering iron, or have two hams where your fist should be, DO NOT ATTEMPT THIS FIX!
Be aware that we are dealing with mains voltages here so BE VERY CAREFUL!
Ok here is the solution.
At the top of the power board there is a relay marked:
this relay switches mains to the majority of the components on the power board itself which is then in turn reduced in voltage via a very basic switched mode supply to feed the control circuit on the power board for the switching of the high current relays which in turn supply voltage to the heater unit.
I suspected that this may be faulty so i removed it from the PCB to test it out of circuit.
After removing it from the and energising it with a 12 volt supply I measured the resistance across the switching contacts and found it to be somewhere in the region of 130 Ohms when in fact if should be less than 1 Ohm.
I then replaced the relay for less than £2 and the shower works fine!
This is ever so slightly cheaper than price of a replacement power board.
I was able to do this repair since I am an electronics technician and have been in the trade for some 20+ years.
As I have stated above ONLY ATTEMT THIS REPAIR IF YOU ARE COMPITENT WITH ELECTRONICS!
anyway, if you do want to give it a go and were wondering where to get the relay, it can be obtained from rapid electronics.
here is a link
make shure you get the 12 volt version.
you could also try RS components, or Farnell electronics, or CPC may also stock it - but they are part of farnell anyway.
hope this fix works for all, and saves you some money.
Mr Fixit Cheap!