Chapter 6 - Troubleshooting

Cooling will not come on or will not hold constant.

Remedial Action

First: Make sure the temperature set dial is set to a lower-than- ambient temperature.

Second: Press the cooling on/off switch several times and make sure the amber light in the switch comes on. If the temperature set dial is set to a lower-than-ambient temperature, the system light should also come on. If the system light does not come on, it is a strong hint that a deeper problem exists in the cooling system.

Third: Check the circuit breakers to be sure they haven’t tripped. Reset them if necessary. Refer to Re-setting the Circuit Breakers on Page 60.

CAUTION: Before working on the electrical system, make sure the unit is Off and the electric power cord un-plugged.

Fourth: Check all wire connections behind the cooling on/off switch, on the thermostat, and on the cooling system.

Fifth: If none of the above fix the problem, you probably have a defective thermostat or cooling system. Try operating the heat system. If it too fails, replace the thermostat. Order P/N 853421 and refer to Page 113 for replacement instructions.

Sixth: If the thermostat is OK, a problem exists in the cooling system. Call SSCI Customer Service at (800) 323-7366, or a certified refrigeration serviceman.

WARNING: Do not attempt to work on or dis- assemble the cooling unit as it contains MP39 refrigerant gas under pressure. If service is required on the unit, call SSCI Customer Service at 1-800-323- 7366, or a certified refrigeration serviceman.

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SSCI - Suburban Surgical Company, Inc.

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Suburban Mfg 12019-01-NGFREP manual Cooling will not come on or will not hold constant
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12019-01-NGFREP specifications

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