Isotherm CR 130, Installation And Usage Instructions

Page: 54 / 248

User Manual
54
The fuse blows. The wrong fuse is being used.
Defective electronic control
unit.
Check the fuse: see table in section 4.4.
Replace the electronic control unit.
The compressor is operating
intermittently.
Battery low or electrical cables
in poor conditions.
Check wiring conditions, examining for
loose connections, rust or verdigris. If
wiring needs to be replaced, see the
manual for correct sizing. If wiring is in
good conditions, check battery function
and replace if in poor condition.
The compressor never stops
(correct fridge performance)
Incorrect thermostat
connection on the electronic
control unit. Thermostat
broken. Condensation is not
working properly, evaporator
cools but not enough to cause
the thermostat to stop the
compressor.
Rotate the thermostat to off position. If
the refrigerator continues to function,
then there is continuity on the control
unit. Correct the problem on thermostat
connections (make sure the bridge
is present on C and P and not on C
and T on the electronic control unit).
Rotate the thermostat to off position.
If the compressor switches off but it is
impossible to regulate temperature,
replace the thermostat or recharge the
cooling system.
The compressor never stops
(poor fridge performance)
Environment very hot +
insufficient ventilation or little
gas in the refrigerant circuit.
Check ventilation. The compressor must
be installed in a well-ventilated location.
If possible, remove the refrigerator from
the installation hole. If the refrigerator
operates better, improve ventilation,
consulting the manual for correct
installation. If ventilation is instead
optimal, check for the presence of gas
in the system, contacting a specialised
technician.
The freezer compartment
is cold but the refrigerator
is not
Insufficient ventilation,
little gas in the refrigerant
circuit, electrical power not
continuous.
Check ventilation. The compressor must
be installed in a well-ventilated location.
If possible, remove the refrigerator from
the installation hole. If the refrigerator
operates better, improve ventilation,
consulting the manual for correct
installation. Check electrical connection
and battery conditions. If ventilation is
instead optimal, check for the presence of
gas in the system, contacting a specialised
technician.