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1100_6_7.pdf, Troubleshooting, Additional operation features – Braeburn 1100 User Manual

Page 4

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6

7

Resetting Thermostat

Non-Volatile Memory

The Reset feature allows the user to completely reset the thermostat and to register new

manual

˚F / ˚C temperature scale switch settings.

1. To erase all entered program settings, gently press RESET button using a paper clip or a

small pencil tip.

2. This will return all thermostat settings to their default values and register all new manual

˚F / ˚C temperature scale switch settings.

In the event of a power failure, the Non-Volatile Memory feature of this unit allows all settings to

be recovered, eliminating the need to reset temperature and differential settings. When AC

power is restored after an outage, all settings are retrieved from memory and reinstated.

Thermostat does not
turn on heating or
cooling system.

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 a minutes time.
Compressor protection features may be in effect due to

compressor short cycle conditions. See Compressor Protection

section for full explanation of this feature.

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.

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.

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.

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) in the heat mode.

TROUBLESHOOTING

6

cont.

SYMPTOM

POTENTIAL SOLUTION

TROUBLESHOOTING

6

Thermostat turns
heating or cooling
system on too often
or not often enough.

Increase or decrease first stage temperature differential setting

as appropriate to provide the desired performance level. See

Setting Temperature Differential section of this manual.

Thermostat turns on
second (auxiliary)
stage of heating or
cooling too quickly or
not quickly enough.

Increase or decrease second (auxiliary) stage temperature

differential setting as appropriate to provide the desired

performance level. See Setting Temperature Differential section

of this manual.

ADDITIONAL

OPERATION FEATURES

5

5.4

cont.

5.5

Thermostat turns on
heating instead of
cooling, or cooling
instead of heating.

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.