Triton T90sr temperature problems

Oat23

Hi guys.

I will attach a video below of the issue I'm having. I have the top dial (power) set to II and the temp dial below it set to 1pm when I power on the shower. After a few seconds I turn the temp dial to around 2.30pm to demonstrate the sound that often comes from the shower while using it.

Is it the pump making that noise? Every time it happens while in the shower it is followed shortly after by a temperature issue. Sometimes the shower goes cold and will often stay cold until it is powered off for 15-20 seconds to "reset". If I turn it back on it usually starts heating, but it's behaviour is inconsistent and frustrating.

So far what I've done is cleaned the filter (had a little dirt in it after 18 months use) and then recommissioned it. When I opened the bleed screw while going through the commission process there was a bit of air trapped that escaped, but neither that nor cleaning the filter helped the issue I'm having with inconsistent temperatures. I also took off the hose connected to the T90sr but it was clear.

If anyone has any idea which part of the unit is making the noise in the video and any potential solutions it would be a great help.

PS: I have the duelec shower heads and this problem happens while using both the rain head and handheld one.

Thanks

https://streamable.com/g32buz

John.G

Suggest checking the shower flowrate first, turn the temperature control to fully cold, (you can turn the heating elements off while doing this) and let the water flow into a container for exactly 30 secs, then measure this with a 1L container/milk bottle and X 2 to get the flowrate in LPM, should be 8 to 10LPM.

brendan001

If you suffer limescale the boiler unit might be clogged up. There is a video on youtube showing how to clean it out. Also disassemble the showerhead and clean out the jets. Had similar issues. A non triton showerhead can cause flow rate issues as they are not matched and will cause erratic temp swings.

Oat23

https://www.boards.ie/discussion/comment/123771573#Comment_123771573

Thanks John. Should I do this without the shower head attached and just stick the hose pipe into the bottle or does it tend to not matter?

Ger Roe

This may or may not be related to our problem, but I had an temperature issue with my Triton shower, where it would often run cold at random times. It turned out to be a very simple, cheap component related issue.

There was a very small and cheap quality micro switch critically positioned on the main circuit board to just about make surface contact with a short section of rubber hose pipe that ran through the control unit. When water flowed sufficiently, the switch was activated by the slight expansion caused to the rubber pipe and the unit then heated (the expanded wall of the pipe, pushed against the touching switch to activate it). However, the mounting for the critical switch position was very flimsy and over a period of time the actuator on the switch moved slightly further away from the pipe surface, due to the constant pressure of the water flow. It reached a stage where it was too far away from the surface of the pipe to be making reliable contact when water did flow and so it dropped in and out of heating as the switch indicated that there was low water pressure, due to it being just about too far away from the pipe surface to be actuated by its expansion.

I fixed it by bending the flimsy switch housing back in to the correct place and then gluing it into position where it functioned correctly by resting on the surface of the pipe so that it could detect the expansion and decide that the correct pressure was flowing.

I am not sure if the same process is a feature of your shower, but it might be something to consider. I was amazed at how cheap the switch component and it's position mounting was and at how basic the flow detection process was. This was a few years ago now, so maybe the design has improved since then.

Oat23

https://www.boards.ie/discussion/comment/123771607#Comment_123771607

I disconnected the shower head and stuck the pipe coming out of the T90sr into a 5L bottle. Power set to cold and temp set to cold (furthest anti clockwise). The 5L bottle started overflowing after 27 seconds so probably a flow close to 11L

John.G

https://www.boards.ie/discussion/comment/123771607#Comment_123771607

Do it with the showerhead in place as per normal and just hold the container/bucket up under it, you want the max flowrate under "normal" showering conditions.

John.G

You should really do it as above because the showerhead might be partially blocked and also at the one oclock position, the minimum flowrate required to either cause the heating elements to cut out either due to the temperature reaching 48C or the pressure switch cut off is around 5.0 LPM at a present mains temp of 18C.

Oat23

https://www.boards.ie/discussion/comment/123772739#Comment_123772739

Thanks John. I'm away now but I'll be back later this week and update you with the results.

If it was something like limescale blocking part of the unit (not in the shower heads) as mentioned by Brendan above would that be covered under warranty do you guys think? I'm guessing I have a 2 years parts warranty (?) which would be valid until May 2026. If it would cover limescale and I wouldn't have to pay I think I would call the company in Maynooth they list on the shower to sort it for me instead of attempting to take it apart myself!

John.G

I'd be very surprised if its Limescale as you would see some evidence in the shower heads IMO but if it is then it certainly will not be warranty covered.

Sleeper12

Shower has a 2 years parts and labour warranty. You can void it by messing with the shower yourself. I'd suggest calling Triton 01 628 6845 & get a professional to investigate.

If you still want to try yourself then first thing is to disconnect the hose from the shower pole. Run the shower. If you don't have the same issue then it's most likely not the shower. It would be more likely to be the dual setup.

If it still happens without the shower pole then the issue is likely to the motor or a plumbing issue. The only way the shower can get too hot on its own is if the flow rate of the water changes