CRE Troubleshooting
29
12 Troubleshooting
Red LED flashes (fig. 4 2, page 3)
During operational faults the LED flashes several times. The number of flashes
depends on the type of fault.
Each flash lasts for one quarter of a second. After the series of flashes a pause follows.
The sequence for the fault is repeated every four seconds.
Orange LED flashes (fig. 4 3, page 3)
If LED flashes constantly fast, proceed as follows.
➤ Press the button until the refrigerator switches off.
➤ Disconnect the connection cable from the battery or disconnect the plug on the
AC cable plug from the rectifier.
➤ Wait one minute, then reconnect the refrigerator to the power supply and switch
it on.
➤ If the orange LED still flashes, contact the customer service.
Number of
flashes
Fault Possible cause
1 Line Voltage The supply voltage is outside of the set range.
2 Excessive fan current The fan load on the electronics unit is more
than 1 A.
Too many start attempts The compressor or fan has been started too
often within a short period of time.
3 The motor doesn't start The rotor is jammed.
The pressure difference in the cooling system
is too high (> 5 bar).
4 Speed too low If the cooling system is overloaded, the
minimum speed of the motor of 1850 rpm
cannot be maintained.
5 Over temperature of the
electronics unit
If the cooling system is loaded too heavily or
the temperature is set too high, the
electronics can overheat.
Constantly Temperatur sensor
errors
Temperatur sensor is defective.
CRE50-65-80-IO-16s.book Seite 29 Donnerstag, 9. November 2017 1:03 13