Tabla De Contenido; General Information; Safety - Norcold NR740 Serie Manual De Servicio

Contents
General Information .............................................................................. 2
Safety ........................................................................................... 2
WARNINGS! ................................................................................ 5
Specifi cations ........................................................................................ 6
Internal Capacities ....................................................................... 6
Controls ........................................................................................ 6
Off-level Operating Limits ............................................................ 6
DC Power ..................................................................................... 6
AC Power ..................................................................................... 6
Typical DC Amperage Draw @ Nominal 12 VDC ....................... 6
Typical AC Amperage Draw @ Nominal 120 VAC / 240VAC ....... 6
Exploded View - NR740 ........................................................................ 9
Parts - NR740, NR751 ....................................................................... 10
Exploded View - NR751 .......................................................................11
Troubleshooting .................................................................................. 12
Diagnostic Pre-Checks .............................................................. 12
Self-Test Diagnostics .......................................................................... 12
Self-Test Diagnostic Chart ......................................................... 14
Diagnostic Symptom Chart ........................................................ 14
Troubleshooting - Test A, Battery Protection Cut-Out ......................... 17
Troubleshooting - Test B, Fan Over Current Cut-Out ......................... 18
Troubleshooting - Test C, Motor Start Error ........................................ 18
Troubleshooting - Test D, Minimum Motor Speed Error ...................... 19
Troubleshooting - Test E, Thermal Cutout of Electronic Unit .............. 19
Troubleshooting - Test F, Not Cooling, Not Turning On ...................... 20
Troubleshooting - Test G, Refrigerator Gets Too Cold ........................ 20
Troubleshooting - Test H, Refrigerator Builds Frost Inside ................. 21
Troubleshooting - Test I, Runs But Does Not Cool Properly ............... 21
Remove and Install ............................................................................. 22
Remove Unit .............................................................................. 22
Install Unit .................................................................................. 22
Test Unit .............................................................................................. 23
Wiring Diagram ................................................................................... 24
NR740, 751 Models / Modèles NR740, 751 / Modelos NR740, 751
2

General Information

Safety

Read this manual carefully and understand the contents
before working on the refrigerator.
Be aware of possible safety hazards when you see the safety
alert symbol on the refrigerator and in this manual. A signal
word follows the safety alert symbol and identifi es the danger
of the hazard. Carefully read the descriptions of these signal
words to fully know their meanings. They are for your safety.
WARNING! This signal word means a hazard, which if
!
ignored, can cause dangerous personal injury, death.
CAUTION! This signal word means a hazard, which
!
if ignored, can cause small personal injury or much property
damage.
Refrigerator Service Manual / Manuel d'entretien du réfrigérateur / Manual de servicio del refrigerador