T80si - going cold sometimes, then recovers.
If I turn the shower to a cooler setting, this will hasten the switching back on of heat. I'm only using it at mid-range temp (5 or 6), and would say the problem occurs more at higher settings.
If there's enough flow (window green) and power on (neon on) then I'm guessing that the Thermal Cut-Out could be wrongly cutting in too soon. Is this likely?
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 open / close the safety device that allowspower through to the elements
After you have checked theabove have a look at the outlet TCO
The outlet Thermal Cut Outthis is a black disk with two wires going to it and it is mounted on the outlet pipe (The bit between the heating tank and the hose)
Examine the connections closely if you see any discoloration / signs ofoverheating then the TCO needs replaced.
Answered 12 years ago by Anonymous
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