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White Rodgers 1F78-144 Non Programmable Thermostat Instruction Manual
6 SPECIFICATIONS
ELECTRICAL DATA
Electrical Rating:
0 to 30 VAC 50/60 Hz. or D.C.
THERMAL DATA
Setpoint Temperature Range:
45°F to 90°F (7°C to 32°C)
0.05 to 1.0 Amps (Load per terminal)
1.5 Amps Maximum Total Load (All terminals combined)
Operating Ambient Temperature Range:
32°F to 105°F (0°C to 41°C)
Operating Humidity Range:
0 to 90% RH (non-condensing)
Shipping Temperature Range:
-40°F to 150°F (-40°C to 66°C)
TROUBLESHOOTING
7
Reset Operation
not function correctly contact your heating/cooling service person
If a voltage spike or static discharge blanks out the display or or place of purchase.
causes erratic thermostat operation you can reset the thermostat
Batteries
For best results, replace batteries once a year with new premium
brand alkaline batteries such as Duracell® or Energizer®.
by pressing
SYSTEM switch from OFF to HEAT. This also resets the factory
defaults. If the thermostat has power, has been reset and still does
and
at the same time while moving the
Symptom
Possible Cause
Corrective Action
No Heat/No Cool/No Fan 1. Blown fuse or tripped circuit breaker.
(common problems)
Replace fuse or reset breaker.
Turn switch to ON.
2. Furnace power switch to OFF.
3. Furnace blower compartment door or
panel loose or not properly installed.
Replace door panel in proper position to engage
safety interlock or door switch.
No Heat
1. Pilot light not lit.
Re-light pilot.
2. SYSTEM Switch not set to HEAT.
Set SYSTEM Switch to HEAT and raise setpoint
temperature above room temperature.
3. Loose connection to thermostat or system. Verify thermostat and system wires are securely
attached.
4. Furnace Lock-Out Condition. Heat may
also be intermittent.
Many furnaces have safety devices that shutdown
when a lock-out condition occurs. If the heat works
intermittently contact the furnace manufacturer or local
service person for assistance.
Diagnostic: Set SYSTEM Switch to HEAT and raise the
setpoint above room temperature. Within a few seconds
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 below. 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 is operating
correctly.
5. Heating system requires service or
thermostat requires replacement.
No Cool
1. SYSTEM Switch not set to Cool.
Set SYSTEM Switch to COOL and lower setpoint
temperature below room temperature.
2. Loose connection to thermostat or system.
Verify thermostat and system wires are securely
attached.
3. Cooling system requires service or
thermostat requires replacement.
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.
| General | Details |
|---|---|
| Name | White Rodgers 1F78-144 Non Programmable Thermostat Instruction Manual |
| Make | WHITE RODGERS |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.42 MB |
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