What to do if LOC displays on McQuay Thermostat?
If the McQuay Thermostat displays 'LOC' when you press any button or the buttons don't work, it means the button lockout function is on. To disable it, refer to the “Lockout Feature” section on Page 17 of your manual.
Why does my McQuay Thermostat not follow program?
If your McQuay Thermostat isn't following the programmed schedule, first, make sure it's in Program mode, which is indicated by 'PROG' on the display. Also, double-check that the time (AM/PM) is set correctly.
Why is there very limited setpoint adjustment on my McQuay Thermostat?
If your McQuay Thermostat has very limited setpoint adjustment, it could be due to the button lockout function being activated. See “Lockout Feature,” Page 17. Also, check the configuration mode settings on Pages 7-10.
Why is the room temperature not correct on my McQuay Thermostat?
If the room temperature displayed on your McQuay Thermostat is incorrect, ensure the wall hole behind the thermostat is sealed with putty or insulation. If you're using a remote sensor, check its wiring and location.
How to stop McQuay LIA265-1 Thermostat from turning on and off too frequently?
If your McQuay Thermostat turns on and off too frequently, try adjusting the temperature differential. You can find this setting under “Differential,” Configuration Mode Setting 4, on Page 8.
Why does system fan not come on properly on McQuay LIA265-1 Thermostat?
If the system fan in your McQuay Thermostat doesn't turn on correctly, ensure the wiring is correct. Also, check the electric heat setup in the configuration settings. Refer to “Configuration Mode” on Page 7 for guidance.
How to stop McQuay LIA265-1 fan from running continuously?
If the fan runs continuously on your McQuay Thermostat, check the fan On/Auto switch. Also, verify the programmable fan setting in the program and the fan settings in configuration. Refer to “Configuration Mode” on Pages 7-10.
Why does program schedule activate at the wrong time on my McQuay LIA265-1 Thermostat?
If the program schedule on your McQuay Thermostat activates at the wrong time, check the time (AM/PM) set on the thermostat. Refer to “Setting the Time” on Page 14.
How to fix no display on McQuay Thermostat?
If your McQuay Thermostat has no display, check for 24 VAC/VDC at the thermostat. The display will be blank if 24 VAC/VDC is not present.
What to do if there is a problem not listed for McQuay Thermostat?
If you're experiencing a problem with your McQuay Thermostat that isn't listed, press the Reset button once.
Guides through thermostat settings for heating/cooling system configuration.
Procedure to test the thermostat's cooling function.
Procedure to test the thermostat's heating function.
General| Brand | McQuay |
|---|---|
| Model | LIA265-1 |
| Category | Thermostat |
| Language | English |
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