SECTION FIVE - Troubleshooting
CC-STAT
©Vantage, 41184 / IS-1308191-A
page 21 of 23
SECTION FIVE – TROUBLESHOOTING
Display Is Blank
Check circuit breaker and reset* if necessary.
Make sure power switch at heating & cooling
system is on.
Make sure furnace door is closed securely.
*CAUTION: Thermostat power must be cycled
after a reset for the CC-WLINT or CC-RLINT
stations to operate correctly.
Temperature Settings Do Not Change
Make sure heating and cooling temperatures are
set to acceptable ranges:
Heat: 40° to 90°F (4° to 32°C).
Cool: 50° to 99°F (10° to 37°C).
Heating System Does Not Respond
(“HEATING” appears on screen)
Check for 24VAC at the equipment on the
secondary side of the transformer between
power and common. If voltage is not present,
check the heating equipment to find the cause
of the problem.
Check for 24VAC between the heat terminal
(W) and the transformer common. If 24VAC is
present, the thermostat is functional. Check
the heating equipment to find the cause of the
problem.
Check for loose or broken wires between the
thermostat and the heating equipment.
Cooling System Does Not Respond
(“COOLING” appears on screen)
Check for 24VAC at the equipment on the
secondary side of the transformer between
power and common. If voltage is not present,
check the cooling equipment to find the cause
of the problem.
Check for 24VAC between the cooling
terminal (Y) and the transformer common. If
24VAC is present, the thermostat is functional.
Check the cooling system to find the cause of
the problem.
Check for loose or broken wires between the
thermostat and the cooling equipment.
Fan Does Not Turn On In A Heat Call
Check System Setting 09 (Fan Control), to
make sure the fan control is properly set to
match the type of system (see page 9).
Heat Pump Issues Cool Air In Heat
Mode, Or Warm Air In Cool Mode
Check wiring at the terminal block to confirm
the reversing valve is connected to the proper
terminal. O is active in cooling and B is active
in heating.
Heat /Cool Both On At Same Time
Check SW1 (Equipment Type), to make sure it
is set to match the installed heating/cooling
equipment (see page 8).
Check to make sure heating and cooling wires
are not shorted together.
Heating Equipment Is Running In
Cool Mode
Check SW1 (Equipment Type), to make sure it
is set to match the installed heating/cooling
equipment (see page 8).
“HEATING” Is Not Displayed
Check Installer System Setting number 05
(Control Setup) is set correctly.
Change the System Mode to Heat, and set
the temperature level above the current room
temperature.
“COOLING” Is Not Displayed
Check Installer System Setting number 05
(Control Setup) is set correctly.
Change the System Mode to Cool, and set
the temperature level below the current room
temperature.
Nuances In Thermostat Mode Only
From TPT touchscreens: If the thermostat is in
Heat mode it is possible to change the COOL
setpoint lower than the heat setpoint, when
the thermostat is changed to Cool mode, the
HEAT setpoint will be pushed to the
thermostat causing the COOL setpoint to
move 3 degrees above the HEAT setpoint.
The HEAT setpoint always takes precedence
over the COOL setpoint. The only exception is
while in Auto mode, if the COOL setpoint is
pushed below the HEAT setpoint, the HEAT
setpoint is pushed 3 degrees lower than the
COOL setpoint and vice-versa.
Other changes to the thermostat while in
Network Override or OFF are also updated
when moving out of either of these modes.
The only exception is the FAN control mode
which executes in any mode.
