SYMPTOM
ACTION TO TAKE
Temperature
Reading Incorrect
1. Allow 30 minutes for thermostat to
adjust to room temperature
2. Adjust calibration offset
3. Change setup option to display
o
F or
o
C
After installation, allow the thermostat up to 30 minutes for an
accurate temperature reading
SYMPTOM
ACTION TO TAKE
Display Problem
1. Disconnect power to the thermostat.
Reconnect, then observe display self-test
For a 5 second period after power is reconnected, all segments of
the display should light indicating all thermostat functions
SYMPTOM
ACTION TO TAKE
Aux Heat On Too
Often
1. Heat Pump is not able to meet load due
to cold weather
2. Thermostat is in EM Heat mode - Set
thermostat to Heat or Auto mode
In EM Heat mode, the auxiliary heat is turned on.
SYMPTOM
ACTION TO TAKE
Heat Pump Heats In
Cool Mode & Cools
In Heat Mode
1. Reversing valve is connected to wrong
terminal - move wire from B to O or
from O to B
The wires connecting the reversing valve may be reversed
(See Note 1 - Page 8)
SYMPTOM
ACTION TO TAKE
No Auxiliary OR
Emergency Heat
1. See if heat pump is equipped with
outdoor thermostat. If so, disconnect it.
Heat pump may be equipped with an outdoor thermostat which is
overriding Aux Heat when outdoor temperature is above certain
level - Disconnect the outdoor thermostat, the RC-100 controls the
aux heat automatically
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