Worcester GREENSTAR HEATSLAVE II External 12/18 User Instructions page 5

Fig. 2
Controls:
[A] Spanner/return button
[B] Reset button
[C] ECO button
[D] Boiler LCD display
[E] Central heating temperature control
[F] Scroll up button
[G] OK - Select/confirmation button
[H] Scroll down button
[I] Demand/fault indicator (blue)
[J] Position for optional programmer
[K] Hot water, heat store, temperature control
[L] Diagnostic port (service engineer)
[M] System pressure gauge
[N] Burner service mode button (service engineer)
Greenstar Heatslave II External ErP – 6 720 813 722 (2014/09)
Using your boiler
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