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5100_12_13.pdf, Troubleshooting, Symptom potential solution – Braeburn 5100 User Manual

Page 7

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The Keypad is locked. Press both the and key together at

the same time for one second to unlock (see section 5.5).

12

13

TROUBLESHOOTING

6

cont.

SYMPTOM

POTENTIAL SOLUTION

Check thermostat wiring to make sure that the heating and

cooling stages are connected to the correct terminals on the

wiring terminal block. See Installation and Wiring Diagram

sections of this manual.

Verify your program setpoint time entries. The heating and

cooling programs utilize the same setpoint times, but have

individual setpoint temperatures for the

MORN, DAY, EVE and

NIGHT setpoints. See Setting Your Energy Saving Program

section of this manual.
Thermostat program has been temporarily overridden and

program indicator is flashing in the display. Wait until next

setpoint and the temporary override will expire or change

setpoint temperature to desired comfort level.
Thermostat program is in Extended Hold (Vacation) Mode and

HOLD and TEMP is showing in display. Press HOLD button to

release permanent hold and return the

thermostat to normal

program operation.

Thermostat turns

heating or cooling

system on too often or

not often enough.

Thermostat turns on

second (auxiliary) stage

of heating or cooling

too quickly or not

quickly enough.

Increase or decrease first stage temperature differential setting

as appropriate to provide the desired performance level. See

Setting Temperature Differential and Residual Cooling Fan

Feature section of this manual.

Increase or decrease second (auxiliary) stage temperature

differential setting as appropriate to provide the desired

performance level. See Setting Temperature Differential and

Residual Cooling Fan Feature section of this manual.

Thermostat will

not follow program

setpoints.

Check current time of day, day of week program settings. Make

sure to verify

AM/PM indicator is accurately displaying desired

time settings. See Setting Current Time of Day and Day of Week

section of this manual.
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.

Low battery indicator is

shown in thermostat

display.

Replace batteries immediately to maintain proper system

operation. See Low Battery Detection and Replacement section

of this manual.

OFF is shown in

thermostat display and

heating or cooling

system will not start.

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.

Thermostat display

is blank.

Thermostat will not

allow me to program a

setpoint temperature

higher than 90˚ F (32˚C).

It is possible that AC power is not present at the thermostat and

the back-up batteries are fully discharged. Check fuse, circuit

breaker and thermostat wiring as appropriate to verify AC power

is available. Replace back-up batteries before reprogramming

thermostat to make sure you have back-up power. See Low

Battery Detection and Replacement and Setting Your Energy

Saving Program sections of this manual.
If AC Power is present, call a professional service technician to

verify thermostat and system performance.

This is above the normal thermostat temperature setting range

of 45˚ to 90˚ F (7˚ to 32˚ C).

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

99˚ F (37˚ C) upper limit of the thermostats 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.
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).

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.

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).

TROUBLESHOOTING

6

cont.

SYMPTOM

POTENTIAL SOLUTION

Thermostat turns on

heating instead of

cooling, or cooling

instead of heating.

The temperature sensed by the thermostat is lower than the

40˚ F. (5˚ C) lower limit of the thermostats display range. The

display will return to normal after the sensed temperature rises

within the 40˚ to 99˚ F. (5˚ to 37˚ 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.