Braeburn 5200 - Manual (Page 10)

Troubleshooting
cont.
Troubleshooting
cont.
Symptom: HI is shown in the thermostat
display where the room temperature
is normally displayed.
Potential Solutions: The temperature
sensed by the thermostat is higher than the
99˚ F (37˚ C) upper limit of the thermostat’s
display range. The display will return to
normal after the sensed temperature lowers within the 40˚ to 99˚ F (5˚ to 37˚ C)
display range. Turn on the cooling system or use other methods to lower the
temperature accordingly.
Symptom: LO is shown in the thermostat
display where the room temperature is
normally displayed.
Potential Solutions: The temperature
sensed by the thermostat is lower than the
40˚ F (4˚ C) lower limit of the thermostat’s
display range. The display will return to
normal after the sensed temperature rises within the 40˚ to 99˚ F (4˚ to 37˚ C)
display range. Turn on the heating system to raise the temperature as needed
for comfort within the room.
Symptom: Thermostat will not allow me to change the set point.
Potential Solution: The Keypad is locked. Press both the and key together at
the same time for one second to unlock (see section 5).
Symptom: Fan continues to run all the time whether the system is on or off.
Potential Solutions: 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 section 11).
Symptom: Fan continues to run in cooling mode when the system has turned off.
Potential Solution: 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 section 5).
Symptom: The thermostat does not allow me to program each day separately.
Potential Solution: Thermostat must be in 7 Day mode for separate day to
day programming.
Symptom: System turns on prior to the end of a setback period.
Potential Solution: Thermostat is in Adaptive Recovery Mode (see section 6).
Symptom: NO EM HEAT SET is shown in the thermostat display.
Potential Solution: The thermostat is configured for a conventional system, and
the system switch is in the
EM HEAT position. The unit will still function in a
conventional 2 stage HEAT mode, but the display will flash NO EM HEAT SET.
Move the system switch to the HEAT position.
Check to see if OFF is shown in display. This indicates that the system is turned
off at the thermostat. Move the system selector switch to the HEAT or COOL
position. After the compressor short cycle protection 5-minute period expires, the
system should start within several seconds.
Verify your program set point time entries. The heating and cooling programs
utilize individual set point temperatures and set point times for the
MORN, DAY,
EVE and NIGHT set points. See section 6.
Thermostat program has been temporarily overridden and program indicator is
flashing in the display. Wait till next set point and the temporary override will
expire or change set point temperature to desired comfort level.
Thermostat program is in Extended Hold (Vacation) Mode and HOLD is showing in
display. Press HOLD button to release permanent hold and return the thermostat
to normal program operation.
Symptom: Thermostat turns heating or cooling system on too often or not
often enough.
Potential Solution: Increase or decrease first stage temperature differential
setting as appropriate to provide the desired performance level (see section 6)
.
Symptom: Thermostat turns on second (auxiliary) stage of heating or cooling
too quickly or not quickly enough.
Potential Solution: Increase or decrease second (auxiliary) stage temperature
differential setting as appropriate to provide the desired performance level.
See section 5, Second Stage Differential.
Symptom: Low battery indicator is shown in thermostat display.
Potential Solution: Replace back-up batteries as soon as possible to maintain
proper system operation. See section 6, Low Battery Detection and Replacement.
Symptom: OFF is shown in thermostat display and heating or cooling system
will not start.
Potential Solution: This indicates that the system is turned off at the thermostat.
Move the system selector switch to
HEAT or COOL position. After the compressor
short cycle protection 5-minute period expires, the system should start within
several seconds.
Symptom: The room is too warm or too cold.
Potential Solution: Press the or button for 1 second to verify the set point.
Raise or lower temperature as required. Ensure system switch is in HEAT or
COOL position.
Symptom: Thermostat display is blank or reads -AC
Potential Solution: It is possible that AC power is not present at the thermostat
and the batteries are drained. Check fuse, circuit breaker and thermostat wiring
as appropriate to verify AC power is available. Replace batteries before
reprogramming thermostat. (see section 9). If AC power is present, call a
professional service technician to verify thermostat and system performance.
Symptom: Cannot program a set point temperature higher than 90˚ F (32˚ C).
Potential Solution: This is above the normal thermostat temperature setting
range of 45˚ to 90˚ F (7˚ to 32˚ C).
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