Hunter 44550 Owner's Manual - Page 34

Troubleshooting

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TROUBLESHOOTING 34-35 Problem SCRAMBLED OR DOUBLE DISPLAY (numbers over numbers) NO DISPLAY ENTIRE DISPLAY DIMS PROGRAM DOES NOT CHANGE AT YOUR DESIRED SETTING AUTO / FAN DOES NOT TURN ON HEATING OR COOLING DOES NOT GO ON OR OFF Solution 1. Remove clear mylar sticker 1. Check battery connections and batteries. 2. Press RESET button with a small pin and hold in for two seconds. 1. Replace Batteries 1. Check that the time is set properly to "AM" or "PM". 2. Check that the thermostat is not in "HOLD" or "Home Today" modes. 3. Check for the correct day setting. 1. Move HG/HE selector to opposite position 1. Check that the system selector switch is in the correct position ("HEAT," "COOL" or "AUTO"). 2. The thermostat may be in the AUTO mode. Look for "AUTO" on the LCD display. If the Heat and Cool program temperatures are close, then the thermostat requires a larger room temperature change before changing from Heat or Cool. 3. There may be as much as a 4 minute delay before the Heat or Cool system turns On - wait and check. (Compressor protection delay.) 4. Check your circuit breakers and switches to ensure there is power to the system. 5. Replace batteries. 6. Make sure your furnace blower door is closed properly. 7. If your system only uses 4-wires, be sure the jumper wire is installed between the RC and RH terminals. 8. Check the position of the Furnace or Heat Pump selector switch: Normal / O / B.

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34-35
TROUBLESHOOTING
Problem
Solution
SCRAMBLED OR DOUBLE DISPLAY
(numbers over numbers)
NO DISPLAY
ENTIRE DISPLAY DIMS
PROGRAM DOES NOT CHANGE AT YOUR
DESIRED SETTING
AUTO / FAN DOES NOT TURN ON
HEATING OR COOLING DOES NOT GO ON OR OFF
1. Remove clear mylar sticker
1. Check battery connections and batteries.
2. Press RESET button with a small pin and hold in for two seconds.
1. Replace Batteries
1. Check that the time is set properly to “AM” or “PM”.
2. Check that the thermostat is not in “HOLD” or “Home Today” modes.
3. Check for the correct day setting.
1. Move HG/HE selector to opposite position
1. Check that the system selector switch is in the correct position (“HEAT,”
“COOL” or “AUTO”).
2. The thermostat may be in the AUTO mode. Look for “AUTO” on the LCD
display. If the Heat and Cool program temperatures are close, then the
thermostat requires a larger room temperature change before changing
from Heat or Cool.
3. There may be as much as a 4 minute delay before the Heat or Cool
system turns On – wait and check. (Compressor protection delay.)
4. Check your circuit breakers and switches to ensure there is power to the
system.
5. Replace batteries.
6. Make sure your furnace blower door is closed properly.
7. If your system only uses 4-wires, be sure the jumper wire is installed
between the RC and RH terminals.
8. Check the position of the Furnace or Heat Pump selector switch: Normal / O / B.