Why is the battery symbol flashing on my UPM THM501?
If the battery symbol is flashing on your UPM Thermostat, replace the batteries with fresh alkaline batteries. It's also recommended to replace the batteries at least once a year, even if the battery symbol isn't flashing.
How to fix a blank LCD screen on my UPM Thermostat?
If the LCD screen on your UPM Thermostat is blank, try the following: * Ensure the batteries are correctly installed. * Verify the batteries are fresh and of the correct type. * Press the RESET (R) key on the back of the thermostat, located above the battery compartment.
What to do if the heat will not come on with my UPM Thermostat?
If the heat isn't turning on for your UPM Thermostat, make sure: the thermostat is set to HEAT or AUTO mode; the set temperature is higher than the current room temperature; and wait up to 5 minutes for the heat to turn on. After waiting 5 minutes, the heating should now be on.
What to do if the air conditioning will not come on with my UPM THM501 Thermostat?
If the air conditioning isn't turning on for your UPM Thermostat, make sure that the thermostat is set to the COOL or AUTO mode. Also, check that the set temperature is lower than the current room temperature. You may need to wait up to 5 minutes for the air conditioning to activate. After waiting, the air conditioning should now be on.
Why does the heating system cycle often on my UPM THM501 Thermostat?
If your UPM Thermostat's heating system cycles too often, ensure you've selected a Cycle Rate that matches your heating system. The default is set at Cr-3 for gas or oil forced air systems. If it still cycles too often, try a slower cycle rate or disable the cycling.
What to do if the air conditioning symbol is animated, but the AC won't turn on with my UPM Thermostat?
If the air conditioning symbol is animated on your UPM Thermostat but the air conditioning isn't turning on, check if the air conditioning system's main switch is turned on. It may have been turned off. Also, wait several minutes for the air conditioning system to activate.
Why doesn't my UPM THM501 automatically change from HEAT to COOL in AUTO mode?
The UPM Thermostat has a built-in 30-minute time delay to prevent undesirable change-over sequences from HEAT to COOL or COOL to HEAT when set to AUTO mode. You can manually override this delay by pressing the MODE button to select HEAT or COOL only.
Instructions for setting the current time and day on the thermostat.
How to perform a soft reset or a hard reset on the thermostat.
Solutions for when the thermostat's LCD screen is blank.
What to do when the battery symbol indicates low battery power.
Solutions for when the heating system does not turn on.
Diagnosing why the heat indicator is active but no heat is produced.
Solutions for when the air conditioning system does not turn on.
Diagnosing why the AC indicator is active but no cooling is produced.
Instructions for connecting the system wires to the thermostat terminals.
General| Brand | UPM |
|---|---|
| Model | THM501 |
| Category | Thermostat |
| Language | English |
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