Norcold N1090 Series Service Manual

Contents

Norcold N1090 Series Service Manual Manual pdf 5 page image

5Refrigerator Service Manual / Manuel d'entretien du réfrigérateur / Manual de servicio del refrigerador Modelos N1090 / Modèles N1090 / Modelos N1090Diagnostic Pre-ChecksBefore performing detailed diagnostics inspect for thefollowing:1. Make sure the refrigerator is turned ON.2. Make sure the door is closed and sealing correctly.3. Make sure the refrigerator is correctly installed and thatthe vents are not blocked.There may be more than one over currentdevice in the refrigerator supply circuit.Be sure to check both the RV and refrigera-tor.4. Make sure the vehicle fuse or circuit breaker is intact.5. Make sure the ambient temperature is not unusually high(more than 110° F. / 43° C.). Maximum ambient tempera-ture is 131 ° F.6. Make sure that the air circulation inside the refrigeratoris not decreased by foods or by shelves that are coveredwith plastic, paper, etc.7. Make sure the freezer is defrosted.8. Bypass the thermostat by disconnecting the wires andinstalling jumper wire in place of thermostat. If unit worksreplace thermostat.After these pre-checks, if the refrigerator does not operate:9. Remove unit from its enclosure; refer to "Remove andInstall" section.10. Perform the diagnostics outlined in the "Self-Test Diag-nostics" section.11. If the self-test diagnostic tests do not reveal an error code,refer to the "Diagnostic Symptom Chart."Self-Test DiagnosticsThe unit’s control module is equipped with a self-testdiagnostic function which can be read using a light emittingdiode (LED). To access the error codes displayed in thecontrol module, you will need the items in Fig. 2. Refer to Fig.3 - Fig. 3.5 for diagnostic instructions.Fig. 2 - LED and connectorsNOTICENOR00000033AABA2A1Reference DescriptionA (1x) 10 mA LED with wire leadsA1 (1x) 1/4 inch push-on female connectors (Black)A2 (1x) 1/4 inch push-on female connectors (Red)B 1/4 inch adapter with one (1) female and two (2) maleconnectionsC 12 VDC Input WireD 12 VDC Terminal "+"E Control ModuleF Terminal "D"Fig. 3 - LED, connectors and control moduleDo not leave jumpers in place for normaloperation.The control module may vary in appearance,but the procedure is identical regardless ofmodel.Connecting the LEDRefer to Fig. 2, and Figs. 3.1-3.51. Attach the two (2) female blade connectors (A1, A2) tothe wire leads of the LED (A).Fig. 3.1 - Attach Blade Connectors2. On the control module (E), disconnect the 12 VDC inputwire (C) from the "+" terminal (D).NOTICEAA2A111_++FDCPT12/24 VdcECD22DIAGNOSTICS