Self-Test Diagnostic Chart
Flashes
1
Battery Protection Cut-Out
■
2
Fan Over - Current Cut-Out
■
3
Motor Start Error
■
4
Minimum Motor Speed Error
■
5
Thermal Cutout of Electronic Unit
■
Diagnostic Symptom Chart
Problem
Not cooling, not turning on
Refrigerator gets too cold
Refrigerator builds frost inside
Runs but does not cool properly
Will not run on DC power
DE/EV0041, DE/EV0061 Models
Description
The voltage is outside the cut out setting
The fan electrical load exceeds more than 1.0 amp
The rotor is blocked or the differential pressure
in the refrigeration system is too high ( >5 bar)
If the refrigeration system is too heavily loaded,
the motor can not maintain minimum speed (1850)
If the refrigeration system has been too heavily loaded
or the ambient temperature is high, the electronic unit
will run too hot
■ Faulty thermostat (6)
■ Power to control module
■ Fail wire from control module to
compressor
■ Faulty control module
■ Faulty Compressor (10)
■ Bad capillary tube position
■ Faulty thermostat (6)
■ Faulty control module
■ Door not closed
■ Damaged door gasket
■ Air leak at foam plug (7)
■ High ambient temperatures
■ Blocked air ventilation
■ Frost build up
■ Condenser coil (11) restricted
■ Faulty condenser fan
■ Faulty cooling unit
■ Blown fuse in DC circuit
■ Undersized wiring to refrigerator, minimum
#12 gauge wire required; refer to owners
manual for recommend wire size
■ Partially discharged battery, voltage below
11.3 VDC at compressor module
■ High resistance (voltage drop) in supply
circuit
Possible Cause
18
Action to Take
Perform Test A
Perform Test B
Perform Test C
Perform Test D
Perform Test E
Action to Take
Perform Test F
Perform Test G
Perform Test H
Perform Test I
Perform Test J