Troubleshooting - White Rodgers 1F89-211 Installation And Operation Instructions Manual

TROUBLESHOOTING
Reset Operation
If a voltage spike or static discharge blanks out the display or causes erratic thermostat operation you can reset the thermostat
by pressing the reset button (see fig. 1). If the thermostat has power, has been reset and still does not function correctly contact
your heating/cooling service person or place of purchase.
Symptom Possible Cause Corrective Action
No Heat/No Cool/No Fan 1. Blown fuse or tripped circuit breaker.
(common problems) 2. Furnace power switch to OFF.
3. Furnace blower compartment door or
panel loose or not properly installed.
No Heat 1. System Switch not set to Heat.
No Cool
Heat, Cool or Fan Runs Constantly.
Furnace Cycles Too Fastor Too Slow
(narrowor wide temperature swing)
Cooling Cycles Too Fastor Too Slow
(narrowor wide temperature swing)
ThermostatSetting andThermometer
Disagree
Blank Displayand/or Keypad Not
Responding
2. Loose connection to thermostat or system.
3. Heating System requires service or
thermostat requires replacement.
1. System Switch not set to Cool.
2. Loose connection to thermostat or system.
3. Cooling System requires service or thermostat
requires replacement.
1. Possible short in wiring.
2. Possible short in thermostat.
3. Possible short in Heat/Cool/Fan system.
4. Fan Switch set to Fan On.
1. The location of the thermostat and/or the size
of the Heating System may be influencing the
cycle rate.
1. The location of the thermostat and/or the size
of the Cooling System may be influencing the
cycle rate.
1. Thermostat thermometer setting requires
adjustment.
1. Loss of power.
2. Voltage Spike or Static Discharge.
Replace fuse or reset breaker.
Turn switch to ON.
Replace door panel in proper position to engage
safety interlock or door switch.
Set System Switch to Heat and raise setpoint
above room temperature.
Verify thermostat and system wires are securely
attached.
Diagonistic: Set System Switch to Heat and raise
the setpoint above room temperature. Within a five
minutes the thermostat should make a soft click
sound. This sound usually indicates the thermostat
is operating properly. If the thermostat does not
click, try the reset operation listed above. If the
thermostat does not click after being reset contact
your heating and cooling service person or place
of purchase for a replacement. If the thermostat
clicks, contact the furnace manufacturer or a
service person to verify the heating system is
operating correctly.
Set System Switch to Cool and lower setpoint
below room temperature.
Verify thermostat and system wires are securely
attached.
Same procedure as diagnostic for No Heat
condition except set the thermostat to Cool and
lower the setpoint below the room temperature.
There may be up to a five minute delay before
the thermostat clicks in Cooling if the compressor
lock-out option is selected in the configuration
menu (Item 6).
Check each wire connection to verify they are
not shorted or touching together. No bare wire
should stick out from under terminal screws. Try
resetting the thermostat as described above.
If the condition persists, the manufacturer of
your system or service person can instruct you
on how to test the Heat/Cool system for correct
operation. If the system operates correctly,
replace the thermostat.
Item 2 in the Configuration Menu is the adjustment
that controls the cycle rate. If an acceptable cycle
rate is not achieved using the FA (Fast) or SL
(Slow) adjustment contact a local service person for
additional suggestions.
The cycle rate for cooling is fixed and can not be
adjusted. Contact a local service person for
suggestions.
The thermometer can be adjusted +/- 4 degrees as
listed in item 7 of the Configuration Menu. No other
adjustment is possible.
Check heat/cool system for power.
If a voltage spike or static discharge occurs use the
Reset Operation listed above.