TROUBLESHOOTING
PROBLEM SOLUTION
Display on transmitter not
illuminated.
Check battery.
Cooling will not energize. Select COOL mode. Decrease cooling set point to 10 degrees below
room temperature. Check for 24 vac at Y1 terminal on receiver. If
present, thermostat is operating correctly and problem is with receiver
wiring or equipment. If 24 vac is not present, replace the thermostat.
Check for Compressor Cycle per Hour Limit. Cooling may be locked out.
Heating will not energize. Select HEAT mode. Increase heating set point to 10 degrees above room
temperature. Check for 24 vac at W1/O/B terminal on receiver. If present,
thermostat is operating correctly and problem is with receiver wiring or
equipment. If 24 vac is not present, replace the thermostat.
When using 4 wires (R,G,W,Y) connected to receiver,
the air conditioning equipment tries repeatedly to turn
on, but cannot.
There is not enough power available. Connect a 270 ohm, 10 watt power
resistor at the air conditioning equipment between terminals W and C on
receiver.
When controlling a heat pump, heat comes on during
cooling cycle.
Configure receiver for heat pump operation. (See wireless receiver
installation instructions.)
When calling for cooling, both heating and cooling are
energized.
The receiver is configured for a heat pump. Configure the receiver for
non-heat pump operation. (See wireless receiver installation instructions.)
When controlling a commercial heat pump unit, unit
runs in reverse or heating is always on.
Some commercial heat pumps require that Heat Pump option (DIP switch
on receiver) is turned OFF. Check the unit installation instructions for
more information.
7
To Next Page
Loading...