Hvac thermostat troubleshooting

SYMPTOM:CAUSE:REMEDY:
The slide switches on the thermostat are very difficult to moveThe backplate of the thermostat is screwed too tightly into a wall that is not perfectly flatLoosen the screws holding the thermostat into the wall
The Air Conditioning does not attempt to turn onThe coolinq setpoint is set too high, the Mode Switch is not set for Cool, or the batteries are too weak: Consult the Normal Operation section in this manual to:
• Lower the cooling setpoint
• Correct the Mode Switch position
The fan does not turn on even though the compressor has energizedThe Fan Switch is not completely in the On or Auto positionSlide the Fan Switch firmly into the On or Auto position
The Heating does not attempt to turn onThe heating setpoint is set too high, the Mode Switch is not set for Heat, or the batteries are too weakConsult the Normal Operation section in this manual to:
• Raise the heating setpoint
• Correct the Mode Switch position
• Replace the batteries