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I
I
TROUBLESHOOTING
Your Honeywell thermostat requires little
or
no attention. Most problems can generally
be
traced to
the
following:
NOTE:
If
your system is heating-only or air conditioning-only, disregard sections not applicable to your system.
SYMPTOM
No
heat
-_____
Furnace turns on
and
off.
Major swings in
^_^^_^
1..
..^
PROBLEM
System switch at
OFF
or
COOL
Position.
Blown fuse or tripped
circuit breaker
Furnace power switch
is
on
QFF.
No pilot flame
Improper connections to
thermostat.
Defective thermostat.
(Here’s how you tell:
Remove the thermostat
from the wall. Discon-
nect wire from
W
ter-
minal. Touch
W
wire to
R
terminal. The thermo-
stat is detective
if
the
burner comes on.)
Other.
Burner
ON
period is too
short,
Burner
ON
period
:-
*^^
,---
SYMPTOM
Move switch to HEAT Thermostat setting
position. and thermometer
reading disagree.
Replace fuse or reset
circuit breaker
Switch to
ON
_._
_-
CORRECTI~E
Am
Relight pilot flame per
furnace manufacturer’s
instructions
With power to furnace
OFF,
tighten all mounting
and terminal screws. Re-
pair frayed or broken
wires.
Exchange the thermostat
(see Warranty). ing
No
air Condltlon-
Contact a qualified service
technician for assistance.
Remove the thermostat
cover and move the heat
anticipator lever COUNTER-
CLOCKWISE
n
one
scale mark. Replace the
cover and wait several
hours for the system to
stabilize.
Remove the thermostat
^^..^_
..-A
-^..^
A&.^
LA-.
PROBLEM
Thermostat is not level.
Thermostat affected by
drafts or radiant heat.
Thermostat is out of cali-
bration.
Thermometer is out of
calibration
System switch in in OFF
or HEAT position.
Blown fuse or tripped
circuit breaker
Compressor switch
(lo-
cated outdoors) is turned
OFF
Improper connections
to
thermostat
--
Defective thermostat.
(Here’s how you tell.
Remove the thermostat
from wall Disconnect
wire from
Y
terminal
Touch
Y
wire to terminal
R.
The thermostat is de-
fective
if
the compressor
CORRECTIVE ACTION
Recheck the thermostat
position on wall. Use a
bubble level to make sure
it’s
level. See step
4.
Contact a qualified service
technician to change the
location. The thermostat
should be about
5
ft
[1.5
m] above the floor and on
an inside
wall.
Contact a qualified service
technician to recalibrate
the thermostat.
Recalibrate. See step
8.
Move siitc-h to
cooi
position.
Replace fuse or reset
circuit breaker.
Move switch to ON posi-
tion.
With power to furnace
OFF,
tighten
all
mounting
and terminal screws. Re-
pair broken wires.
Exchange the thermostat.
See Warranty.