Norcold 121X series, Руководство по обслуживанию

Страница: 69 / 100

S
ection
8
67
6
Gurgling sound from boiler area?
YES
7
Cooling detected?
Replace cooling system.
Test cooling system performance.
Cooling system performance
check:
1. Disconnect the thermistor from
the circuit.
2. Set mode to AC.
3. Set temperature setting to 9.
4. Place a thermometer in a
glass of water and record the
temperature.
5. Place the glass of water with the
thermometer in the left freezer,
against evaporator plate.
6. After three (3) hour compare the
temperature of the water against
the temperature taken in step 4.
NO
1. Reconnect thermistor to wire
harness.
2. Set controls to Diagnostic Mode.
3. Select diagnostic Screen 3.
4. Record temperature displayed in
Screen 3
5. Monitor fin temperature for 3 hours
with all doors closed.
Fin temperature drop in 12 hours? NO
Replace cooling unit.
Cooling system is okay.
Expected temperatures after a 12-
hour period:

-5 to -10º F on the rear, middle of
left freezer plate.

18 to 25º F fin temperature range,
diagnostic Screen 3.
Results based on:

Refrigerator empty.

All doors closed.

12 volt DC input to power board.

108 to 132 volt AC to power board.

Both fans operational

90º F ambient temperature.

Good ventilation.
From page 66
NO
YES
Cooling system may have to be resealed..