Water very hot
First I think the pressure relief device hasblown and this is what is causing the water to come the bottom of the unit.
It’s a safety device on the bottom of theheating tank.
It is fairly easy to replace however there isusually something that causes it to blow,
often a kink in the hose or the showerhead isblocked, so check this before fitting the new PRD.
http://www.showerdoc.com/TRITO-83301330-PRD-(Pressure-Relief-Device)-and-'O'-ring-(Pair)?ss=prd&pg=2
The bubbling noise is caused by the waterstarting to over heat.
The things to check first are.
1 That the main valve coming into your house is fully open.
2 Then check that the valve on the line to the shower is fully open.
If these valves are not fully open then there may not be enough water
getting to your shower to cool it properly the overheat safety devicewill turn
the power off until it cools Then it all starts again
Make sure that the shower headis clean and clear, that the hose isn’t kinked (this can happen just behind thehand set where it is difficult to see) also check the inside of the hosealthough it can look OK on the outside it could have collapsed internally
Answered 12 years ago by The Shower Doctor
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