shower 1500 Running cool

With the Sirrus 1500 or 1800 series valves if there anyproblems the first thing to do is give them a strip down clean and lube and fita service kit, this will cure 85% of any problems with these valves and it isalso the cheapest thing to do!

If after servicing you find out that it needs a newthermostat and piston assembly nothing is really lost because it almostcertainly needed a service in any case.

 The 1500

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

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

When fitting make sure that all the old sealis removed and no bits are hiding under the lip, give the new seal a heat in hotwater and make sure that the seal is well greased before fitting, once it ispressed in there can be bumpy bits on the face of the seal, rolling andpressing a screwdriver handle over the bumps a few times can help to smooththem out.

The seal housing is available as a spare whichhas the washer already pressed in, if for some reason you have difficultyfitting the new seal.

http://www.showerdoc.com/shower-spares/sirrus-by-gummers/GUM-SK1500-22-Sirrus-Ts1500-Housing-Kit-SK1500-22

Take photos as you strip it down you canthen refer to them when you are rebuilding.

The 1800

http://www.showerdoc.com/shower-spares/sirrus-by-gummers/GUM-PARENT-14-Sirrus-1850---1850-Dual-Shower-Valve

There is no real difficulty with this valvehowever it looks a little more complicated than the 1500 just take photos asyou strip it down you can then refer to them when you are rebuilding.