Condition
- Shorted or open return temperature sensor
Possible Cause
- Shorted or mis-wired return sensor wiring
- Defecticve return sensor
- Check sensor / Sensor Ohm Chart (Optional) < Get from Engineering
Check Sensor
Check Display
- Press Help
- Press Fault Status
- Press Sensor Fault
The Sensor Status screen shows the status of all sensors. Possible states include:
- None: Feature requiring this sensor has not been selected
- Normal: Sensor is working normally
- Shorted: Sensor is shorted or is defective
- Open: There is a break in the wiring between the Control and the sensor or the sensor is defective
- Out of Range: Sensor is defective or is being subjected to electrical noise
- Unreliable: Sensor is defective or is being subjected to electrical noise
When a sensor fails “opened” or “shorted” the value is changed to reverse video (background black and value white) “024” or “768” respectively to indicate that there is a fault with the sensor.
