I
ianblue
I have just had a problem with a Gainsborough shower ,unbelievably the same fault which I had in a previous one.
The shower is a Gainsborough 8.5E.
The fault is NO HEAT.
THis seems to be a common fault. If you look at image (1) you will see the white plunger attached to the power switch by a spring . This is pulled down by a piston and operates the power switch to power up stage 1 and 2 of the element. When the control knob is moved towards heat , the control valve closes and causes an increase in pressure into the cylinder and so moving the piston. It should go down and stay down as long as heat is called for. Mine wasn't moving.
Gainsborough told me this could be damaged by either grit or a sudden surge in pressure. The shower is rated 1 to 10 bar. They said it was unrepairable and would need to be replaced with a whole new unit
Anyway what I did was to remove the white assembly (where it connects to the black assembly) lo and behold there was a fine filter there you can see it at the top in image 2. It was clogged - filter cleaned ,shower now perfect again!
There is also a bigger gauge filter behind the protective cover at the inlet.
The shower is a Gainsborough 8.5E.
The fault is NO HEAT.
THis seems to be a common fault. If you look at image (1) you will see the white plunger attached to the power switch by a spring . This is pulled down by a piston and operates the power switch to power up stage 1 and 2 of the element. When the control knob is moved towards heat , the control valve closes and causes an increase in pressure into the cylinder and so moving the piston. It should go down and stay down as long as heat is called for. Mine wasn't moving.
Gainsborough told me this could be damaged by either grit or a sudden surge in pressure. The shower is rated 1 to 10 bar. They said it was unrepairable and would need to be replaced with a whole new unit
Anyway what I did was to remove the white assembly (where it connects to the black assembly) lo and behold there was a fine filter there you can see it at the top in image 2. It was clogged - filter cleaned ,shower now perfect again!
There is also a bigger gauge filter behind the protective cover at the inlet.