Fujitsu Waterstage WOYA060LFCA Installation And Operating Manual page 34

Air to Water Heat Pump, split system
Variable pressure
Pression variable
Venting
Dégazage
Constant pressure
Pression constate
figure 27 - Pump dial
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LED Off:
The pump does not work, no electrical power.
Green LED on:
The pump works normally.
Green LED blink:
Venting operating mode (10 minutes).
Green/Red LED blink:
Operating error with automatic reboot.
Red LED blink:
Operating error.
figure 28 - Operation signals with the HP circulator
Circulation pump sticking or blocked:
If the motor is blocked, a start cycle is launched.
If the motor remains blocked it will be permanently
stopped.
" Cut off the electricity supply from the circulation
pump for 30 seconds in order to release and
authorise another start cycle.
Installation and operation manual "1764 - EN"