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15, 30, & 60 cfm Compact Dryers Chapter 6: Troubleshooting 45 of 57

6-2 Determining Temperature Controller Errors or Sensor Errors

Using a Thermocouple

If the controller displays a temperature that is close to room temperature (70ºF/21ºC) when

you short-circuit controller input terminals, the controller is normal and the sensor is probably

broken, short-circuited, or incorrectly wired.

Using a Platinum Resistance Thermometer

If the controller displays a temperature of about 0.0°C (32ºF) when you insert a 100-ohm

resistor between terminals A and –B of the controller, and you short-circuit controller

terminals +B and –B, the controller is normal and the sensor is probably broken, short-

circuited, or incorrectly wired.

Other service problems or questions can be answered by contacting the Service

Department.

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CDA CST Spécifications Page 46