Nissan Sentra/Pulsar/NX 1982-1996 Repair Guide

Thermal Control Amplifier and Thermistor

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See Figure 1



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Fig. Fig. 1: Thermal protector switch

The compressor cycles ON and OFF to maintain the evaporator temperature within a specified range. When the evaporator temperature falls below the specified temperature, the thermal control amplifier interrupts the compressor operation. When the temperature rises, the amplifier turns the compressor ON.

REMOVAL & INSTALLATION



Automatic Temperature Control

See Figure 2



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Fig. Fig. 2: Thermal control amplifier and thermistor-automatic temperature control vehicles

Remove the screws securing the thermistor retainer at the front of the cooling unit. Replace the thermal control amp assembly with a new one. The cooling unit does not have to be removed for these procedures.

 
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