This question is regarding Galaxy Boss 750s / 850s / 950s (Electric Shower) - Shower Spares

BOSS B850S

My shower has no power light on it. Is there a fuse inside that might need replacing?
Asked 7 years ago by Mark
There are no fuses in these showers , so you will have to check the power is 230-240v into the shower.

Answered 7 years ago by Barrie Seabright

Yes there is 240v into the shower and also the other side of the on/off switch

Answered 7 years ago by Mark Hargreaves

It may be your solenoid valve, you can check it if you have a multi meter, you should have a reading of at least k3.5 ohms, across the two terminals any less and you need a new valve. (Check the valve in the failed state.) (When it has stopped working!)

If there is power getting to the solenoid and it is not operating then there is a good chance that you have a faulty solenoid.

www.youtube.com/watch?v=NzJjzWqxesc

The video is intended as a guide and does not cover every shower.

If you don’t have a multimeter we sell them with a guide on how to use them for checking and testing the various parts of your shower.

Apart from helping to fix your shower, they are really useful for checking you have a power supply to appliances, for checking fuses and letting you know much power you have left in batteries

(So you will know if they are good or not) and lots of other jobs, in short they are well worth a few pounds

www.showerdoc.com/installation/electrical-products/SKYTRO-600-005-Digital-Multi-Tester

Answered 7 years ago by Barrie Seabright

Thanks for these hints. I tested the solenoid terminals and it looks like I am getting open circuit across the two terminals. Does this mean it is a faulty solenoid?

Answered 7 years ago by Mark Hargreaves

You can check it if you have a multi meter, you should have a reading of at least k3.5 ohms, across the two terminals any less and you need a new valve. (Check the valve in the failed state.) (When it has stopped working!)

If there is power getting to the solenoid and it is not operating then there is a good chance that you have a faulty solenoid.

www.youtube.com/watch?v=NzJjzWqxesc

The video is intended as a guide and does not cover every shower.

Answered 7 years ago by Barrie Seabright

Yes I checked it with a multi meter and it shows 1. (meaning open circuit). I presume this means the solenoid is faulty(?)

If this is the case, please could you advise what part I need to order for my shower.

Answered 7 years ago by Mark Hargreaves

You should have a reading of at least k3.5 ohms, across the two terminals any less and you need a new valve.

Answered 7 years ago by Barrie Seabright

Please could you advise which solenoid valve I need to order for my BOSS B850S shower

Answered 7 years ago by Mark Hargreaves

www.showerdoc.com/galaxy-mx-neptune-electric-shower-solenoid-valve-assembly-sg06123

This is the link to the part.

Answered 7 years ago by Barrie Seabright

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