shower going from hot to cold

temperature going from hot to cold and then back again gets more frequent the higher the temperature is turned up
Asked 12 years ago by Paul

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 device will turn
the power off until it cools Then it all starts again


Make sure that the shower head is clean and clear, that the hose isn’t kinked (this can happen just behind the hand set where it is difficult to see) also check the inside of the hose, it can look OK on the outside it could have collapsed internally


Also as it is a Triton have a look at the outlet TCO

The outlet Thermal Cut Out this is a black disk with two wires going to it and it is mounted on the out let pipe (The bit between the heating tank and the hose)
Examine the connections closely if you see any discoloration / signs of overheating then the TCO needs replaced.

Answered 12 years ago by Anonymous

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