Orbit 83521 User Manual page 20

TROUBLESHOOTING
Problem:
Incorrect room temperature
Solution:
1. Let the thermostat sit (do not touch) for 30 minutes to allow the temperature to stabilize.
2. Check placement of thermostat; make sure it's not in an unusually drafty or heated area.
3. Verify that the wall hole for wires is insulated properly.
4. Check Temperature Offset (see "Temperature Offset," page 16).
Problem: Buttons below display do not function
Solution: Verify that the thermostat is not in MANUAL mode
(see "Turning Off Schedules," page 28).
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Problem: Not reaching set temperature
Solution:
1. Verify that the MODE switch is in proper heat or cool mode.
2. Verify that Heating/Cooling systems are working properly.
(See "No heating/cooling system activation," page 32.)
3. Check for loose or crossed wiring in the thermostat wiring terminal.
4. Check Temperature Offset (see "Temperature Offset," page 16).
5. Check placement of thermostat; make sure it's not in an unusually drafty or heated area.
6. Verify that the wall hole for wires is insulated properly.
7. Verify that the O/B jumper is installed appropriately. (See "Set Heat Pump Jumper" page
12).
Problem: Wrong temperature scale displayed
Solution: See "Temperature Format," page 15.
TROUBLESHOOTING
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