| Cools more than 5 degrees past its displayed set temperature |
- Verify that your thermostats electrical connections are clean and tight.
- Verify that your units placement
and mounting are optimum per the installation section of it's manual.
- Replace unit. There are no user serviceable parts.
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| No fan or cooling when expected. |
- Refer to wiring to verify that it is according to the unit's wiring diagram. Verify that all connections are to your thermostat are clean and tight.
- If room temperature is lower than 40F the unit will not close it's switch and call for fan or cooling.
- Rotate the dial to its lowest setting. fan or cooling should operate immediately.
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| Cooling Test |
- Slowly rotate the dial toward its highest setting. Listen carefully for a small click near room temperature. When it is heard, the unit should switch off fan or cooling immediately.
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| Advanced Trouble Shooting |
- This thermostat is designed to switch hazardous voltage. Qualified service personnel may use the following information to trouble shoot the system.
- The LV3 uses a normally open single pole snap-action switch to control a fan or cooling system. It should open when cooler than its set temperature, close when warmer than its set temperature.
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- Contact your HVAC service company or our Technical Assistance Line if not resolved.
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