Removal And Replacement Of Thermistors - Hoshizaki Commercial Series Service Manual

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I. Removal and Replacement of Thermistors
This section covers removal and replacement of the cabinet and defrost thermistors. For
a thermistor check procedure, see "IV.C. Thermistor Check."
1. The thermistors are fragile; handle very carefully.
2. Do not shorten or cut the thermistor leads.
1. Cabinet Thermistor
1) Move the power switch to the "OFF" position, then unplug the unit.
2) Remove the evaporator fan shroud. Remove the cabinet thermistor from the evaporator
fan shroud.
3) Remove the control box cover.
4) Disconnect the cabinet thermistor from the control module, then remove the cabinet
thermistor.
5) Route the new cabinet thermistor from the control box to the evaporator fan shroud.
6) Secure the cabinet thermistor to the evaporator fan shroud.
7) Replace the evaporator fan shroud in its correct position.
8) Connect the cabinet thermistor to the control module, then replace the control box cover
in its correct position.
9) Plug the unit back in. Move the power switch to the "ON" position.
Refrigerator Cabinet Thermistor
(located on the inside of the
evaporator fan shroud)
Freezer Cabinet Thermistor
(located on the outside of the
evaporator fan shroud)
CAUTION
Fig. 8
43
Evaporator Fan Shroud