Braeburn 3100 - Manual (Page 5)

8 9 10
Thermostat display
is blank. It is possible that AC power is not present at the thermostat.
Check fuse, circuit breaker and thermostat wiring as appropriate
to verify AC power is available.
If AC Power is present, call a professional service technician
immediately to verify thermostat and system performance.
WIRING DIAGRAM
7
SYMPTOM POTENTIAL SOLUTION
Thermostat will not
allow me to program
a setpoint
temperature higher
than 90˚ F (32˚ C). This is above the normal thermostat temperature setting range
of 45˚ to 90˚ F (7˚ to 32˚ C).
Thermostat will not
allow me to program
a setpoint
temperature lower
than 45˚ F (7˚ C). This is below the normal thermostat temperature setting range
of 45˚ to 90˚ F (7˚ to 32˚ C).
Fan continues to run
all the time whether
the system is on
or off. Check that the fan control switch is in the AUTO position.
This will allow the fan to run only when the heating or cooling
system is turned on and running.
Check thermostat wiring to make sure that the fan control
wiring is connected to the correct terminals on the wiring
terminal block. See Installation and Wiring Diagram sections
of this manual.
Fan continues to run
in cooling mode when
the system has
turned off. The Residual Cooling Fan Control Feature can allow up to a 90
second fan delay after cooling system shutdown for energy
efficiency gains. The default setting is 60 seconds. This can be
changed to disable this feature or shorten the time period if
desired. See Setting Residual Cooling Fan Feature section of
this manual.
The room is too
warm or too cold. See Review Set Temperature section of this manual to verify the
current setpoint and make any modifications that are necessary.
Fan runs
intermittently or
when system is off.
Thermostat will not
allow me to change
the setpoint.
LO is shown in the
thermostat display
where the room
temperature is
normally displayed.
HI is shown in the
thermostat display
where the room
temperature is
normally displayed. The temperature sensed by the thermostat is higher than the
90˚ F (32˚ C) upper limit of the thermostats display range.
The display will return to normal after the sensed temperature
lowers within the 45˚ to 90˚ F (7˚ to 32˚ C) display range.
Turn on the cooling system or use other methods to lower
the temperature accordingly.
This condition could occur from the system being turned off
during an exceptionally warm period or upon installation when
the thermostat has been stored for a long period of time in a
warm vehicle or location prior to being installed. The thermostat
is equipped with a mechanical high temperature safety switch
that will turn off the thermostat should the temperature exceed
99˚ F (37˚ C).
TROUBLESHOOTING
6
cont.
SYMPTOM POTENTIAL SOLUTION
TROUBLESHOOTING
6
cont.
Keypad is locked. Press either the or key along with the
backlight key to unlock.
Fan switch is in the Recirculate Mode ® .
Wiring Diagram for 2 Stage Heat, 2 Stage Cool
R Y1 Y2 W2 G O B C W1
1st Stage
Compressor
Contact
2nd Stage
Compressor
Contactor
Auxiliary Heat
Relay
(stage 2)
1st Stage
Heat Relay
Fan Relay
Tr
an
sf
or
m
er
C
om
m
on
(re
qu
ire
d)
24 VAC
Neutral
Hot
120 VAC
NOTE:
Eliminate connection to Y2 for units with single stage cooling.
The temperature sensed by the thermostat is lower than the
45˚ F (7˚ C) lower limit of the thermostats display range. The
display will return to normal after the sensed temperature rises
within the 45˚ to 90˚ F (7˚ to 32˚ C) display range. If the
temperature in the controlled space seems to be normal, wait
for the thermostat to acclimate to the correct room temperature.
If the room seems to be colder than usual, turn on the heating
system to raise the temperature as needed for comfort within
the room.
This condition could occur from the system being turned off
during a cold weather period or upon installation when the
thermostat has been stored for a long period of time in a cold
vehicle or location prior to being installed. The thermostat should
be allowed to warm up prior to installation to allow proper
heating control once installed.