Shower is running cold (Part 2)

Thank you for your answer. Sorry I confused you, I just placed the black probe of the multimeter on one of the element rod connectors with the blue wire and the red probe of the multimeter on one of the element rod connectors with the brown wire.



Anyway I tried it your way, black multimeter probe on where the black wire comes in on the large connector block and then touched each of the element rods with the brown wires and get resistance readings of 12.1 and 15.9.



As the elements appear OK I then tested each component in the chain supplying power to the heater elements. So with shower LIVE and turned on I placed black multimeter probe on large connector block where black wire comes in (as above) and touched the brown wire connector going in to the thermal cut out (got reading of 240 V), going out of the TCO (still got 240 V), then the brown wires going into the two microswitches on the power selector assembly (got 240 V for both) and then the same coming out to the elements (got 240 V for ONE ONLY, other was zero), this was confirmed by then touching the elements brown wires and getting 240 V for one (the one with 15.9 resistance above) and O V for the other (one with 12.1 resistance). Thus it appears that one of the microswitches is not closing to provide power to one of the elements. Am I right in thinking this? If so how come I am not getting some heat from the shower for the other element that is getting power? Anyway do I therefore need to order part 82500210, switching module assembly with actuator and microswitches? Thanks once again for your help.
Asked 12 years ago by Anonymous

Yes sounds like a faulty micro switch.

 

You may well find out that you are still getting some heatturn the shower up to max heat and as long as you have reasonable pressure youwill find that there is a little heat in the water.

Answered 12 years ago by Anonymous

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