This question is regarding Sirrus 1500 Style Valve Seal Service Kit - SK1500-1

Runs Hot then Cold?

I have a 20 year old SK1500 mixer which I replaced seals with your service kit some three years ago and all has been well. A new fault has developed where the first user of shower in morning has no problem and all works fine but 10 minutes later the second user just gets cold water which seems at a slightly higher pressure than normal. Can you suggest fix.
Asked 8 years ago by Allan
With the Sirrus 1500 series that in almost every occasion the first thing to do is give them a strip down clean and lube and fit a service kit, this will cure 85% of any problems and it is also the cheapest thing to do.

If after servicing you find out that it needs a thermostat or piston, nothing is really lost because it almost certainly needed a service in any case.

The 1500

www.showerdoc.com/shower-spares/sirrus-by-gummers/GUM-PARENT-34-Sirrus-1500---Thermostatic-Shower

www.youtube.com/watch?v=4DFGHKrnCkQ

www.youtube.com/watch?v=tFu44LLh994

The seal that shuts the water off is the seal that fits into the base of part 5 in an old valve this looks like a flat washer, it is in fact a thick heavy ‘O’ ring, this can be a difficult seal to fit.

Answered 8 years ago by Anonymous

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