Hoshizaki HUR40a Manual Do Utilizador

45

A thermistor (semiconductor) is used for the cabinet control sensor and defrost termination 
sensor. The resistance varies depending on temperature. No adjustment is required. If 
necessary, check for resistance between thermistor leads and visually check the thermistor 
mounting.

To check a thermistor's resistance, follow the steps below.

1) Disconnect the connector for the thermistor in question under the control box and 

behind the wire guard.

) Remove the thermistor. See "IV.F. Removal and Replacement of Thermistors."
3) Immerse the thermistor sensor portion in a glass or cup containing ice and water for  

or 3 minutes.

4) Check for a resistance between thermistor leads. Normal reading is from 5 to 6.5kΩ 

for the cabinet and defrost thermistors and 145 to 175kΩ for the clogged filter sensor. 
Replace the thermistor if it exceeds the normal reading.

0

-17.8

14.

-

10

-1.

10.7

-

3

0.0

6.0

160

50

10.0

3.9

100

70

1.1

.5

59

90

3.

1.6

36