Rivacold BEST W R290 Bedienungsanleitung Seite 131

EN
8. Diagnostics
Cause
No controller consent to the
compressor
Controller consent is present
but the compressor is off (OFF)
The electric motor has an
interrupted or short-circuited
winding
The compressor is running without consent
Cause
The compressor relay is stuck
to the circuit board
The compressor power relay is
stuck to the electrical box
The packaged unit runs continuously or for long periods
Cause
The packaged unit does NOT
reach the Setpoint
temperature and the
evaporator fans DO NOT work
The packaged unit does NOT
reach the Setpoint
temperature
The condensation water CANNOT evaporate
Cause
The condensing temperature is
too low
130
BEST W R290
Check the Setpoint (Set) and the differential (diF).
l
Load the default setting of the unit.
l
Check the wiring of the compressor relay on the circuit
l
board and its activation state. If the relay is NOT active,
replace the circuit board
Check the wiring of the compressor power relay on the
l
electrical box and its activation state. If the relay is NOT
active, replace it
Replace the compressor.
Replace the circuit board
Replace the compressor power relay
If there is NO controller consent, check the evaporator fan
l
parameters and, if necessary, load the default setting.
If there is controller consent, then, check the wiring of the
l
fans and the relay on the circuit board and its activation
state.
If the relay is NOT active, replace the circuit board
l
If the evaporator is blocked with ice, then manually activate
l
the defrost several times (see "Control panel operations" on
page 112) until it is completely cleaned
If the condenser is dirty, clean it
l
Check that the unit is sized correctly for the required
l
thermal load
Activate the limitation of the minimum condensing
temperature, modify the CoM parameter, bringing it to 2, i.e. air
condensing management with On/Off to prevent the
condensation from dropping too much
Instruction manual
Solution
Solution
Solution
Solution
v. 00 | 9600-0033
Rev.
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