Worcester Greenstore E2X.T8 fault code
Worcester Greenstore & Greensource heat pumps
What the Worcester Greenstore E2X.T8 fault code means, from the manufacturer's own service literature, and the UK models it applies to.
What it means
Compressor stops. Activated when T8 exceeds its maximum permitted temperature.
Source: Worcester Greenstore LECP Installation, Commissioning and Servicing Instructions 6 720 806 768 (2013/02), §21.8 categories + §21.10 alarm functions + §21.13 information log (render-verified)
Can it be reset?
Category I — Information — temporary compressor stop; repeated ⇒ category A. Resets when: Restarts when E2x.T9 falls below the saved temperature with 3 K hysteresis (not adjustable).
Source: Worcester Greenstore LECP Installation, Commissioning and Servicing Instructions 6 720 806 768 (2013/02), §21.8 categories + §21.10 alarm functions + §21.13 information log (render-verified)
UK models this code applies to
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E2X.T8 names a symptom, not a root cause. In the app, the same code opens a guided investigation: what to measure first, the expected values for your exact model, and an honest verdict — including “nothing in this machine is broken” when that's what the readings say.
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