UK trade guideShower Spares 5 min readUpdated 9 July 2026

How to Replace a Triton T80 Heater Element (UK)

Fit a new heating element on Triton T80 Easi-Fit, Xr, Z and Pro-Fit models. Isolate, drain, seal.

Triton

Symptoms

Cold water only — element open circuit. Trips RCD — element to earth. Whistling — scaled element.

OEM part numbers

  • Triton T80 Easi-Fit 7.5 kW — P22320012.
  • Triton T80 Xr 8.5 kW — P22320025.
  • Triton T80 Z 9.5 kW — P22320035.

Fit

Isolate at fused spur AND consumer unit. Drain via handset. Undo 4× cross-head screws on tank cover. Element unscrews with 27 mm spanner. Fibre washer — never PTFE.

Frequently asked questions

Do I need to prime the shower after fitting?
Yes — run cold-only for 30 s to flush air before switching on power.
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