triton t80 shower problems

Owners of Triton T80 electric showers, particularly models around 8 years old, may encounter an issue where the power light is on, but no water flows from the shower head. Here’s a guide to understanding and addressing this common problem.

Identifying the Problem

  1. Solenoid Valve Failure:
    • A likely cause of the issue is the failure of the solenoid valve. This valve is crucial for controlling water flow, and its malfunction can lead to a cessation of water output.
  2. Age-Related Wear and Tear:
    • Considering the shower’s age (around 8 years), wear and tear could be a significant factor. Electric showers typically have a life expectancy of around 5 years with average family usage.

Diagnostic Steps

  1. Voltage Check:
    • Before ordering replacement parts, it’s essential to check the voltages at the shower’s main incoming terminal block. This ensures the problem isn’t related to electrical supply issues.
  2. Testing Solenoid Resistance:
    • If the voltage is normal, the next step is to check the solenoid valve’s resistance to confirm its failure.

Solution Pathways

  1. Replacing the Solenoid Valve:
    • If the solenoid valve is indeed the culprit, replacing it can resolve the issue. This can be a cost-effective solution compared to purchasing a new unit.
  2. Consideration for New Shower:
    • Given the shower’s age and the fact that modern electric showers have advanced features and greater efficiency, it might be more economical in the long run to invest in a new shower unit.

Additional Notes

  • Power Light Flickering:
    • If the power light is flickering and the shower is still not functioning after replacing the solenoid, it could indicate other electrical issues or component failures within the unit.
  • Professional Assessment Recommended:
    • If unsure about DIY diagnostics and repairs, it’s advisable to consult a professional plumber or electrician. This ensures safety and accuracy in identifying and fixing the problem.


While a non-functioning Triton T80 shower can often be fixed by replacing the solenoid valve, assessing the overall condition and age of the unit is crucial. For older models, replacing the entire unit might be a more sensible and cost-effective option. Always prioritize safety and, if needed, seek professional help to ensure a proper and safe resolution.

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