SK1500-1

A: 

A: http://www.showerdoc.com/shower-spares/newteam/GUM-SK1850-1-Sirrus-Seal-Kit---1850-968-Valve-SK1850-1

With the Sirrus 1500 or 1800 series valves if there any problems 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 with these valves and it is also the cheapest thing to do!

If after servicing you find out that it needs a new thermostat and piston assembly nothing is really lost because it almost certainly 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 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.

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

The seal housing is available as a spare which has the washer already pressed in, if for some reason you have difficulty fitting 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 can then refer to them when you are rebuilding.

A: This kit is not suitable and you will need the 1500 service kit.

A: 

If you are on a combi boilercheck this out first

 

Regarding the temperaturefluctuation or cool running it could be a faulty cartridge however to checkthis, see if you can get hold of the hot supply pipe before it enters theshower or perhaps as it leaves the boiler.

 

If when holding this pipethe temperature fluctuates or goes cool then the problem is not with the showerbut more likely with the boiler as the shower can only deliver what the boilersends to it.        #

 

Disregard the temperature atthe taps as they have a different flow rate.

 

If the temperature arrivingat your valve is OK (combi or not) then a strip down clean lube and fitting aservice kit should solve the problem

 

 

A: To make sure of a successful repair would recommend fitting a new cartridge which can be ordered online by clicking on this link.

http://www.showerdoc.com/shower-spares/showerforce/GUM-SK1500-2-Sirrus-Thermostatic-Cartridge-(no-Thermostat)-Standard-SK1500-2

A: 

If the water is turned on then this is normal.

 

Also if it is turned off it can run for a little while the hose and head drains

A: Unfortunately know you have to strip the valve down and remove each seal one at a time match the new seal from the kit and fit, remember to look for internally fitted as well as externall. Grease with silicon lubricant on reassy.
As this kit fits more than oneb valve there may be a few left over.
The seal kit can be ordered online by clicking on the link below.

http://www.showerdoc.com/shower-spares/showerforce/GUM-SK1500-1-Sirrus-Valve-Service-Kit-SK1500-1

A: If you click on the link below it will take you to an exploded diagram of the Sirrus 1500 which is the same shower there are no instructions with it.
The seal kit covers several variants so you may not need all of the seals.
The only way to fit is to dismantle the unit and remove the seals one at a time, match a new one to it and fit it, make sure you get the internally fitted ones as well as the external.
Lubricate with silicon grease on reassembly

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

A: If you click on the link below it will take you to an exploded diagram of the 1500
You need to strip down completely, remove old o rings carefully and match new on and fit. Remember to clean thoroughly and lubricate well with silicon grease on re-assembly.