7 TROUBLESHOOTING
Symptom | Possible Cause | Corrective Action | ||
No Cool | 1. | Blown fuse or tripped circuit breaker. | Replace fuse or reset breaker. | |
| 2. | Furnace power switch to OFF. | Turn switch to ON. | |
| 3. | Furnace blower compartment door or | Replace door panel in proper position to engage | |
|
| panel loose or not properly installed. | safety interlock or door switch. | |
| 4. | Loose connection to thermostat or system. | Verify thermostat and system wires are securely | |
|
|
| attached. | |
| 5. | Thermostat or cooling system requires | Your cooling system manufacturer or service | |
|
| replacement or service. | person can describe how to test the cooling | |
|
|
| system to verify it is operating correctly. If the | |
|
|
| cooling system is capable of operation and the no | |
|
|
| cooling condition persists, replace the thermostat. | |
|
|
|
|
|
Cool Runs Constantly | 1. | Possible short in wiring. | Check each wire connection to the thermostat to | |
| 2. | Possible short in thermostat. | verify it is neatly looped under the terminals. No | |
|
|
| extra wire should stick out from under the | |
|
|
| terminals. | |
|
|
|
|
|
Cooling Cycles Too Fast or Too Slow | 1. | Poor thermostat location for sensing room | The cycle rate for cooling can not be adjusted. | |
(narrow or wide temperature swing) |
| temperature. | The location of the thermostat, size of the Cool | |
| 2. | Cooling system over or undersized. | system and current draw can influence the cycle | |
| 3. | Excessive Current draw influencing thermostat. | rate. Contact a local service person for suggestions. | |
|
|
|
|
|
Thermostat Setting and Thermostat | 1. | Thermostat thermometer setting requires | The thermometer can be adjusted by using a | |
Thermometer Disagree |
| adjustment. | standard slotted screwdriver. Turn the thermom- | |
| 2. | Thermostat setting lever requires calibration. | eter pointer screw located inside the front cover | |
|
|
| to change the setting. For calibrating the setting | |
|
|
| lever contact a local heating and cooling service | |
|
|
| person. | |
|
|
|
| |
Adjusting Thermometer | 1. | Thermostat thermometer disagrees with | The thermometer on the thermostat is accurately | |
|
| other room thermometers. | calibrated at our factory but you can adjusted it | |
|
|
| by using a standard slotted screwdriver. Turn the | |
|
|
| thermometer pointer screw located inside the | |
|
|
| front cover to change the setting. | |
|
|
|
|
|
