My Gainsborough Energy 2000x electric shower has suddenly started to run extremely hot - too hot even on the medium power setting with the temperature control at the coldest setting. The shower sounds rather like a boiling kettle and you can hear it subside, even after the water has stopped flowing. It never used to make this noise.
Water pressure is OK, the shower head is not scaled up and the problem has developed so suddenly and so severely that I'm happy that the seasonal variation in mains water temp is not to blame.
The previous owners of the house left me a brand new, unused heat exchanger which indicates to me that they intended to replace it at some stage for some reason.
My question is - does a heat exchanger have some kind of built-in thermostat that might be faulty in this case ?
Also - if the heat exchanger was scaled-up, would that explain the overheating ? After searching this forum, I've read a few comments about limescale causing problems with electric showers, although my overheating problem appears to have happened almost overnight.
If the answer to either of these is yes, then presumably getting it replaced would be the first thing to try ?
The shower will be replaced with a thermostatic shower next year, so I'm only interested in keeping the shower going at this stage and don't want to replace it with another electric shower.
2000x diagrams here : http://www.showerdoc.co.uk/shower-spares/gainsborough/energy-2000x.html
Any thoughts or comments would be appreciated - cheers.
Water pressure is OK, the shower head is not scaled up and the problem has developed so suddenly and so severely that I'm happy that the seasonal variation in mains water temp is not to blame.
The previous owners of the house left me a brand new, unused heat exchanger which indicates to me that they intended to replace it at some stage for some reason.
My question is - does a heat exchanger have some kind of built-in thermostat that might be faulty in this case ?
Also - if the heat exchanger was scaled-up, would that explain the overheating ? After searching this forum, I've read a few comments about limescale causing problems with electric showers, although my overheating problem appears to have happened almost overnight.
If the answer to either of these is yes, then presumably getting it replaced would be the first thing to try ?
The shower will be replaced with a thermostatic shower next year, so I'm only interested in keeping the shower going at this stage and don't want to replace it with another electric shower.
2000x diagrams here : http://www.showerdoc.co.uk/shower-spares/gainsborough/energy-2000x.html
Any thoughts or comments would be appreciated - cheers.