This question is regarding Sirrus by Gummers Wax Thermostat and Piston - SK1500-3

sirrus ts1600 thermostatic shower valve

I have replaced the theromostat and piston SK1500-3. the water temperature before hand was variable and running cold most of the time.



Since i replaced these parts i have been getting hotter water. I have adjusted the thermostat by inserting screwgdriver down the spindle and water has got hotter. It seems that it is not holding its temperature setting as when i return the water is not as hot as i need it.



The water is hotter when i take of the shower head. i have replaced the shower head and hose and still no hot water is getting through the shower head but warmer when i take of the head.

Im really puzzled. it is opn a gravity fed sustem with a 1.5 bar shower pump. The pressure as also been effected too. PLease can you help me.



many thanks
Asked 13 years ago by Gary
After adjusting with screwdriver did you leave it for about 10-15 seconds to allow it to stabilise before checking ?
If the shower is supplied from a combi boiler or an unvented hot water cylinder then it may be that col supply pressure is too high, if so a pressure reducing valve may be needed in the cold supply to the shower.

Answered 13 years ago by Anonymous

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