AFRISO AM20 SW 1.16, Setup And User Manual

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Internal electronics fault or stuck valve
· Set switch D of the motor unit to manual operation (hand symbol) and check the operation of the
valve. The fault is not mechanical if the valve can easily be turned 90 degrees. After this, check if the
device works normally. Remember to return switch
D into the “A” position.
· If the problem persists, contact a AFRISO retailer.
Low Energy warning
The valve has been fully open for more than 15 minutes, but the supply water temperature is still 5°C
below the desired temperature.
This may be caused by a burner fault, or if the water heater cannot provide hot enough water for the
heating network, for example.
High Energy warning
The valve has been closed for more than 15 minutes, but the supply water temperature is still above the
set maximum temperature and +5°C above the indoor temperature.
The valve cannot be closed mechanically or, when using constant temperature control, the water heater
is full and even return water exceeds the set limit.
Battery power is low (1/3 left)
· Install new alkaline AA batteries in the room unit.
· The room unit has a memory that stores the system settings while the batteries are being replaced.
· At this time, the backlight is off and the display is clear when the device is not in use.
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