- My heating
or cooling does not work. What can I do?
No Heat:
With the system set to heat, when the set point temperature
is raised or lowered past the room temperature, the
thermostat will make a soft click sound within about
5 seconds. Usually the sound indicates correct thermostat
operation. If the heat does not come on after raising
the temperature and hearing the click, check the fuses
or breakers, make sure the furnace is switched on,
and verify the blower compartment door is closed properly.
If no click sound is heard try resetting the thermostat
as described below. If the no heat or no cool
condition persists after resetting the thermostat,
you may wish to contact your heating/cooling service
person for assistance.
No Cool:
Air conditioning systems usually include an outdoor
compressor and an indoor blower. With the thermostat
set to COOL and the temperature lowered below the
room temperature by a couple of degrees there can
be up to a five minute delay before the thermostat
activates the compressor and an indoor blower. If
both the compressor and an indoor blower are running
and the air is not cool it may indicate loss of refrigerant
in the compressor. If the blower or compressor do
not come on or do not shut off try resetting
the thermostat as described below. If the no
heat or no cool condition persists after resetting
the thermostat, you may wish to contact your heating/cooling
service person for assistance.
Reset Operation:
Check this link for procedure to
reset your thermostat.
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- My thermostat
is reading in Celsius. How do I change it to Fahrenheit?
Your thermostat display
can be set to display temperature in Fahrenheit or
Celsius. See your thermostat Operating Instructions
or check this link for procedure to change
your display between °F and °C.
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- My thermostat
does not display the temperature my thermometer reads.
Is there an adjustment to change the display?
The temperature display
on a digital thermostat will normally read very accurately.
If however, the heating and/or cooling system is oversized
or undersized or the location of the thermostat is
not ideal it can cause the temperature display for
the room to read high or low.
See your thermostat Operating
Instructions or check this link for procedure to
adjust the temperature display.
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- How often
should I replace the batteries in my thermostat?
On 1F80-XX models with batteries,
we recommend replacing the batteries once a year.
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- How do
I bypass (not use) the program?
To bypass the program (on
programmable models) and operate the thermostat manually
(like a mechanical model) move the SYSTEM switch to
Heat or Cool (whichever your prefer) and press HOLD.
Use the Temp Up or Temp Down buttons to set the thermostat
on the temperature you want. The temperature setting
you choose will be held until you manually change
it using the Temp Up or Temp Down buttons. The thermostat
will remain in the HOLD mode when you change temperature
and maintain whatever temperature you set. If you
decide to return to the program press PROGRAM RUN
to cancel the hold feature.
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- My furnace
(air conditioning) cycles too fast (slow). Is there
an adjustment?
Adjustable Heating Cycle
Times (also called Anticipation). Cooling is not adjustable.
Your thermostat is designed
to cycle on and off in heating or cooling, keeping
your building in an accurate temperature range. This
maximizes your comfort by keeping the room temperature
very close to the temperature you set. It is not unusual
for your thermostat to be set for 70 and cycle on
and off at 70 keeping you right on target.
Most 1F80 Series thermostats
have a feature that allows you to increase or decrease
the cycle times in heating. This is useful if you
think your cycle times are too long or too short.
A note on older style thermostats;
Anticipation on older style thermostats (mercury bulb
or mechanical) used the current draw of the equipment
to set the anticipation. Some heating and cooling equipment
manufacturers still refer to setting the anticipator
to the current draw of the equipment. This does not
apply to your new digital thermostat. Right from the
box your new thermostat will do an excellent job of
keeping your building at an accurate temperature. The
information above allows you to customize the performance
of your digital thermostat to your requirements.
See your thermostat Operating
Instructions or check this link for procedure to adjust
the cycle time (anticipation).
On Single-Stage models,
heating can be set to A or H. Cooling is not adjustable.
On Multi-Stage or Heat Pump models, heating can be
set to F or S.
The chart below shows how
this adjustment range affects thermostat performance.
|
|
HEATING†
|
COOLING†
|
| Anticipation Reference Number |
Run
Time in minutes
|
Differential Temp ºF
|
Run Time in minutes
|
Differential
Temp ºF
|
| A
|
6
- 10 |
0.8
|
10
- 16 |
1.2
|
| H
|
18
- 25 |
2.2
|
|
|
| F
|
6
- 10 |
0.8
|
10
– 16 |
1.2
|
| S
|
12
- 15 |
1.4 |
|
|
| †
These numbers are approximate and represent
operation with a typical system. Actual temperature
differentials and run times will vary based
on your building and equipment, as well as outdoor
temperature conditions. |
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- What
do AUX, EMER, and MALF indicators mean on my HEAT PUMP
THERMOSTAT?
AUX - Auxiliary Heat or
the second stage of heat in the Heat mode. This is
energized when the Heat Pump is not keeping up with
the thermostat setting. It is normal operation with
most pumps for the thermostat to call for auxiliary
heat. If the auxiliary heat and emergency heat are
using the same back-up heat source the thermostat
may also show the Emergency Heat light whenever the
Auxiliary heat is on.
EMER - Emergency Heat.
When switched to Emergency the thermostat bypasses
the pump and uses the back-up heat. This is useful
if the pump is not operating correctly or if the temperature
outside is so cold that the pump is not economical
to run. If the Auxiliary Heat and Emergency Heat are
using the same back-up heat source the thermostat
may show the Auxiliary and Emergency Heat light on
at the same time.
MALF - Malfunction. Malfunction
indicates the heat pump system is sending a signal
to the Malfunction Indicator on the thermostat terminal
marked “L”. It does not indicate a malfunction in
the thermostat. The manufacturer of the Heat Pump
system can determine the likely cause of malfunction
indication on the thermostat.
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- Why won't
the thermostat bring on second (and/or third) stage
of heat or cool?
1F8X-XX Series Multi-stage
and Heat Pump thermostats are designed to determine
the optimum time to activate the second stage. Simply
raising the temperature in heating or lowering it
in cooling will not always force the thermostat to
bring the second stage on quickly. There is a time
delay from 0-25 minutes. The time element (0-25 minutes)
of the delay varies depending on the performance of
the first stage. In Heating for example, assume for
the last 2 hours the thermostat is set on 70 and the
room temperature is 70 with the equipment using only
the first stage of heat. The thermostat calculates
(internally) the performance of the system. Since
the equipment is keeping the temperature within 1
degree of set point the thermostat will delay second
stage for a longer time if you manually raise the
temperature or if the room temperature quickly changes.
Once the second stage comes on it will come on sooner
the next time there is a difference between the set
point and the room temperature. The net effect of
the staging program is when the first stage is capable
of making temperature the second stage will delay
longer. When the thermostat calculates first stage
cannot make temperature in a reasonable time the second
stage will come on sooner. This is a built in function
that automatically optimizes the use of additional
stages of heat or cool. Most thermostat models have
a method to bring the additional heat or cool stages
on quickly for testing purposes listed in the installation
instructions under the heading of “Testing Your Heat/Cool
System".
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- Do I have
to program a stop time for each program period?
There is no need to select
a time to stop a programming period. Starting a new
programming period will stop the previous program
period.
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- My thermostat
does not follow its program. What should I do?
Unless the thermostat appears
to be damaged it will follow the program that is in
the memory. The most common reason a thermostat will
appear not to be following the program is a programming
error. Verify that the AM or PM settings are correct
for each period. Also verify that the Day of the week
is set correctly. Models with EMR (Energy Management
Recovery) start early to make the temperature they
are programmed for by the time specified in
the program. See your thermostat Operating Instructions
or check this link for procedure to see if your
thermostat has EMR and how to disable EMR if you
do not want the thermostat to start early.
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- Between
heating and cooling seasons, I want to turn my system
off. Will this change the program?
Any time you wish to turn
your system off, simply move the SYSTEM switch to
OFF. This will not affect your thermostat's programming
in any way. To turn the system back on, move the SYSTEM
switch to HEAT or COOL and press RUN PROG. The system
will begin operating according to the current thermostat
program, unless the thermostat is in the HOLD mode.
See OPERATING YOUR THERMOSTAT in your Operating Guide.
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- How can
I get a copy of the Operating Manual for my thermostat?
Operating
Manuals for most 1F80 Series thermostats are available
on-line in pdf format. You must have Adobe Reader
loaded to view the manuals.
