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13. Carefully squeeze the entire
contents of the bottle(s) into the
outlet (C) of the tank.
14. Place the PROBOIL boiler back on
its wall mounted key slot fixing
screws
15. Reconnect all the removed parts from
the boiler in the reverse order listed
above. (Do not use a spanner or
overtighten wingnut inlet and outlet
connectors G or J these should be
hand tight only)
Check that all rubber seals (I) and (H)
are in place (as previously connected)
before reconnecting.
16. Fill the PROBOIL unit with cold water using the Hotkey, keep the Hotkey in place until you see water exit the
spout of the tap then turn it off immediately so the boiler is filled with cold water and descaling solution.
17. Press and hold the
-
+
18. Use the
and
key to change the target temperature on screen.
⚠
Change the pre-set water target temperature to 85°C, this is the optimal temperature to descale.
19. Wait for the PROBOIL.4E unit to
display "READY" onscreen
20. Take note of the time and wait for no longer than a further 30 minutes maximum for the descaler liquid to
work. It is normal for an odour to be present during this time.
21. Press and hold the
PROBOIL.4E user & installation guide v1d
P
key for 1.5 seconds, this will turn the boiler back on from "standby" mode.
P
key for 1.5 seconds, this will turn the boiler back into "standby" mode.
20
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