Troubleshooting; Auto Mode Of Operation; 12 Volt Dc Supply Check; 120 Volt Ac Check At Power Cord - Norcold 600 Repair Manual

Power control circuit

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Parts list (15 pages)

Table Of Contents

Table of Contents

IMPORTANT:

The troubleshooting procedures

which follow require that each

check be performed in sequence.

Conclusions made at any point in

the procedure presumes that all pre-

ceding steps have been followed.

Auto Mode of Operation

Answer these questions before calling

Norcold's technical Service Number.

1. Is the refrigerator installed and

vented in accordance with the

Ventilation instructions speci-

fied in Section 2?

2. Is the refrigerator being operated

in a comfortably level position?

3. Is the refrigerator plugged into

AC power?

4. Do you have 12VDC power to

terminals (-J3) and (+ J4)?

5. Do you have 12 Volts DC

through the 3 amp fuse?

6. Do you have 120 Volts AC

through the 5 amp fuse?

7. Did you check for loose wire

connections or pinched wires?

8. Is the modular connector on

the cable plugged into the

Power Supply board and the

Eyebrow board?

9. Is the Mode Selector set to

AUTO?

10. Is the AC heater element the

proper voltage and wattage?

See Technical Data section.

11. Is Humidity/Storage switch, lo-

cated on the Eyebrow panel, in

the NORMAL (ON) position or

HIGH HUMIDITY (ON) position?

The following is a system-

atic approach for tracing

faults in the AC mode:

1. Using a volt-ohm-meter, check for

+ 12 volts DC at terminals J3 and

J4 and as shown by Figure 11.21.

If you do not have 12 volts as

shown, repair the 12 volt source.

2. With the volt-ohm-meter set to