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Troubleshooting Assistance Guide
44 SuperStat Pro User Guide
Equipment (continued)
Heat will not come On.
• Make sure system is set to heat mode. Press the SYSTEM button until the HEAT icon
is displayed.
• If the display on the thermostat is blank, verify that the air handler breaker is not
tripped, and that the indoor air handler is being powered. If the display is still blank,
call Customer Service toll free at 1-888-232-5949.
• In HEAT mode, set the heat setpoint temperature to at least 4 degrees higher than the
current room temperature. Wait 5 or 6 minutes to get past the 5-minute minimum
safety delay period. If the STG 1 icon is displayed, and heat does not come On,
schedule a cooling and heating contractor service call. If the STG 1 icon is not
displayed, call Customer Service toll free at 1-888-232-5949.
• For heat pump, check and reset the breaker for heat pump compressor.
Temporary temperature hold, UP or DOWN buttons, will not work.
The thermostat may have been turned off. Press the SYSTEM button to place it in cooling
or heating mode, then retry.