T80si hot and cold intermittantly

The shower goes from very hot to cool, then back to hot.

I have already replaced the outlet pipe assembly and wiring.

I have checked the elements. Both are good, but power is intermittent to the second one.

I have also checked the hose and that the head is clean.

The stabiliser valve also seems to be working correctly.

Does this sound like a faulty switching module assy?

Thanks for your help
Asked 12 years ago by Anonymous

We are having a problem at the moment with our ticketing systemit is running words together, we have people working on it!!

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 head is clean andclear, that the hose isn’t kinked (this can happen just behind the hand setwhere it is difficult to see) also check the inside of the hose although it canlook OK on the outside it could have collapsed internally

If all the above are OK you could give your local water authority a ringan ask them what your water pressure should be, they will probably say that thesupply a minimum of 1bar (the minimum required to operate ashower)however press them and ask what it is likely to be first thing in themorning (when everybody is showering)

 

They could have the pressure turned down because they areworking on the main, or because there is a burst pipe some where and they haveturned the pressure down to try to save water, or the pressure maybe low justbecause there is a burst pipe somewhere, that hasn’t been discovered yet!

 

 

 

Answered 12 years ago by The Shower Doctor

Check that incoming mains water stopcock and any isolation valve in the feed to the shower are fully open.
Check with your supplier if there has been any reduction in water supply flow or pressure.
Check that gauze filter in inlet to solenoid valve is clear.
If all above are ok then it is likerly to be the stabiliser valve at fault , replacement can be ordered online by clicking on this link.

http://www.showerdoc.com/shower-spares/triton/TRITO-P07810800-Triton-Stabiliser-Valve-Assembly-(7-5-8-5-9-5kw)-P07810800

Answered 12 years ago by Anonymous

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