This question is regarding Triton T300si Remote - Shower Spares

Triton T300si (Tepid water)

I have a Triton T300si which has suddenly stopped producing hot water, only tepid water. The water flow is strong but does not change by altering the temperature control. I have changed the stabilizing valve ass'y but it is still the same. I have done the following tests:-

Element resistance - 18 ohms & 15 ohms.

Power to elements - yes.

Continuity on TCO - yes.

Continuity on Outlet TCO - yes.

This I think narrows the problem down to the power PCB or the Stepper Motor. Are there any further tests I can do to determine which one is faulty before I go spending any more money unnecessarily.
Asked 10 years ago by Arthur
As it is a Triton 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 out letpipe (The bit between the heating tank and thehose)


Examine theconnections closely if you see any discoloration / signs of overheating then theTCO needs replaced.

Answered 10 years ago by Anonymous

View Spares and Order Parts:

Do you need any additional help to find the correct spare part?

Please click the following link if you would like to see other answers or ask a question regarding the Triton T300si Remote - Shower Spares

If you've landed here and this question is not about your specific product, please take a look at these similar items on our Triton Electric Showers Spares page. Alternatively, if you're looking for any other brands you should view our full range of Shower Spares.

If you do not want to proceed with a repair or you want to buy this item or similar, please consider one of our Replacement Triton Electric Showers

For any other support request please get in touch.