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Temperature Monitoring:
Problem | Cause | Solution | |
1. | Can’t program temperature limits; or the | The input isn’t configured to read a tempera- | Press SET and CONFIGURE to program the |
| unit won’t read the temperature sensor. | ture sensor. | input. (See Section 5.1.1 for more information |
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| on configuring inputs.) |
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2. | The temperature reading is | The temperature sensor has been | Examine the wires to temperature sensor and |
| or | disconnected or has broken wires. | connect or replace wiring. |
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3. | Temperature reads 150° F | Temperature sensor wires are touching or | Verify and correct wiring. |
| or 65° C. | have shorted. |
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4. | Temperature reading is inaccurate. | a) Temperature sensing may be affected by | Try moving the unit to a different location. |
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| a source of ambient heat (ie., direct |
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| sunlight, or heat duct proximity). |
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| b) Temperature may require calibration. | After moving or placing the unit away from |
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| ambient heat sources, the temperature may be |
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| calibrated to offset inaccurate normal reading |
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| by several degrees. |
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| Refer to Chapter 5, Section 5.6. |
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| c) The unit is using the wrong temperature | Verify temperature scale. |
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| scale (Fahrenheit vs. Celsius). | Refer to Chapter 5, Section 5.5. |
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