Troubleshooting - Test C, Motor Start Error - Norcold N1090 Series Service Manual

Troubleshooting, cont'd.

Troubleshooting - Test C, Motor Start Error

START
Perform Diagnostic Prechecks.
Leave DC supply connected and
remove unit from its enclosure.
Inspect unit ventilation. Max
operational ambient temperature is
131° F (55° C). Is ventilation adequate?
Is the unit free from an overload of hot
items?
Yes
Check the voltage at the DC
connector. Is the voltage within
range?
12 VDC: 10.4 VDC -15.4 VDC
Yes
Is unit overloaded?
No
Is fan running and the coils clean and
not restricted?
Yes
Replace cooling unit.
Refrigerator Service Manual / Manuel d'entretien du réfrigérateur / Manual de servicio del refrigerador
, test unit.
No
NOR000726-4b
Repair DC supply voltage, test unit.
No
Reduce load on unit.
Yes
Replace power control module.
No
Three 1/4 second flashes, pause, repeat.
Three (3) 1/4 second fl ashes, pause,
repeat.
Possible Cause:
The rotor is blocked or the differential
pressure in the refrigeration system is
too high ( >5 bar).
Modelos N1090 / Modèles N1090 / Modelos N1090
11