Troubleshooting - Dometic COOLMATIC CRX50 Instrucciones De Montaje Y De Uso

CRX50, CRX65
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Troubleshooting

The significance of the red LED (fig. 3 2, page 4)
For operational faults it illuminates several times. The number of pulses depends on
the type of fault.
Each flash lasts for one quarter of a second. After the series of impulses a pause
follows. The sequence for the fault is repeated every four seconds.
Number of
Fault
flashes
1 Low Voltage
2 Excessive fan current
Too many start attempts The compressor or fan has been started too
3 The motor doesn't start The rotor is jammed.
4 Speed too low
5 Overheating of the
electronics unit
Constantly Temperature sensor
errors
EN
All manuals and user guides at all-guides.com
Possible cause
The supply voltage is outside of the set range
The fan load on the electronics unit is more
than 1 A
often within a short period of time
The pressure difference in the cooling system
is too high (> 5 bar)
If the cooling system is overloaded, the mini-
mum speed of the motor of 1,850 rpm can-
not be maintained
If the cooling system is loaded too heavily or
the temperature is set too high, the electron-
ics can overheat
Temperature sensor is defective
Troubleshooting
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