Alarms - Foster SOLO PLUS Notice De Mode D'emploi Et D'entretien

Unsatisfactory efficiency of the unit:
WARNING:
Removal of protections during machine operation is absolutely forbidden. They have been
developed to safeguard the operator's safety.
12.4

Alarms

When the unit is in alarm mode, the control LED lights up, the buzzer (available if installed
by the customer) starts operating and the display shows an alarm code allowing the
immediate identification of the alarm.
ALARM
High temperature
Low temperature
Room sensor
Evaporator sensor
High pressure
If no defects are found in the unit check that: cold room doors are perfectly tight; there is
no cold dispersion; the cold room is used wisely; no unfrozen liquids or foodstuffs are
placed in the low temperature room; the evaporator is ice-free.
We recommend installation of the machines far from the doors especially when the cold
room is expected to be opened many times a day.
DISPLAY
(HI) alternating with cold
room temperature.
(LO) alternating with cold
room temperature.
Steady (E0).
(E1) alternating with cold
room temperature
(HH) alternating with room
temperature; LED (4) lights
up each time the high
pressure switch is tripped.
If more than 10 trips occur
in one hour, then (PP)
alternating with cold room
temperature is displayed
and alarm relay is activated
together with LED (4).
In this situation all
functions are interrupted.
CAUSE
Excessive door openings.
Too high temperature of
products stored.
Malfunction of the unit.
Malfunction of electronic
controller
Sensor not connected
Sensor not connected
Faulty operation of
condenser fan.
Dirty condenser.
REMEDY
Service intervention
Replace sensor
Replace sensor
Switch off the refrigerating
unit, wait a few seconds
and switch on again.
13