Owner’s Manual - Regal Intensive Care Unit

Heat will not come on or will not hold constant.

Remedial Action

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

Second: Press the heat 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 higher-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 heat 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 heat on/off switch, on the thermostat, and on the heater.

Fifth: If not of the above fix the problem, replace the relay. Order P/N 853415, and refer to Page 126 for replacement instructions.

Sixth: If replacing the relay does not help, you probably have a defective thermostat or heater. Try operating the cooling system. If it too fails, replace the thermostat. Order P/N 853421 and refer to Page 113 for replacement instructions.

Seventh: If the thermostat is OK, replace the heater. Order P/N 853455 and refer to Page 132 for replacement instructions.

Form No. 702718 Rev. A March, 2005

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

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