White Rodgers 1F78H Specifications, Troubleshooting, Symptom Possible Cause Corrective Action

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8 SPECIFICATIONS

ELECTRICAL DATA

Electrical Rating:

20 to 30 VAC 50/60 Hz.

0.05 to 1.2 Amps (Load per terminal)

1.5Amps Maximum Total Load (All terminals combined)

THERMAL DATA

Setpoint Temperature Range:

45°F to 90°F (7°C to 32°C)

Operating Ambient Temperature Range:

32°F to 105°F

Operating Humidity Range:

0 to 90% RH (non-condensing)

Shipping Temperature Range:

-40°F to 150°F

9 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 , and TIME at the same time. This also

resets the factory defaults. 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.

Replace fuse or reset breaker.

(common problems)

2. Furnace power switch to OFF.

Turn switch to ON.

 

3. Furnace blower compartment door or

Replace door panel in proper position to engage

 

panel loose or not properly installed.

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 temp above

 

 

room temp.

 

3. Loose connection to thermostat or system.

Verify thermostat and system wires are securely

 

 

attached.

 

4. Furnace Lock-Out Condition. Heat may also

Many furnaces have safety devices that shut

 

be intermittent.

down when a lock-out condition occurs. If the

 

 

heat works intermittently contact the furnace

 

 

manufacturer or local service person for

 

 

assistance.

No Heat (continued)

5. Heating system requires service or

Diagonistic: Set System Switch to Heat and raise

 

thermostat requires replacement.

the setpoint above room temperature. Within a few

 

 

seconds the thermostat should make a soft click

 

 

sound. This sound usually indicates the thermo-

 

 

stat 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 is operating

 

 

correctly.

No Cool

1. System Switch not set to Cool.

Set System Switch to Cool and lower temp below

 

 

room temp.

 

2. Loose connection to thermostat or system.

Verify thermostat and system wires are securely

 

 

attached.

 

3. Cooling system requires service or

Same procedure as diagnostic for No Heat

 

thermostat requires replacement.

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.

 

 

 

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Contents Thermostat Details ContentsYour Thermostat Replaces PreparationsAttach Thermostat Base to Wall Mounting and WiringElectric Heat or Single-Stage Heat Pump Systems Hydronic Hot Water or Steam Heating SystemsHeating System Check Thermostat OperationFan Operation Cooling SystemButton. Hold will be displayed. Then choose the desired Configuration MenuThermostat Buttons and Switches From ThirdSet Current Time and Day Configuration MenuProgramming Your Thermostat Entering Your ProgramEnter Heating Program Enter Cooling TemperaturesCheck your programming From FifthTroubleshooting SpecificationsSymptom Possible Cause Corrective Action From Seventh

1F78H specifications

The White Rodgers 1F78H is an advanced, user-friendly thermostat designed to enhance home heating and cooling systems. As a product of White Rodgers, a trusted name in HVAC controls, the 1F78H boasts a range of features and technologies aimed at providing efficiency, convenience, and reliability.

One of the standout features of the White Rodgers 1F78H is its intuitive interface. It incorporates a large, easy-to-read LCD display that clearly shows the current temperature and settings, making it simple for users to monitor and adjust their home environment. The backlit screen ensures visibility even in low-light conditions, contributing to its user-friendly design.

The 1F78H is equipped with a 7-day programmable schedule, allowing homeowners to set different temperatures for different days of the week. This level of customization enables users to optimize their energy usage based on their specific daily routines, ultimately leading to potential savings on energy bills. The flexibility of programming multiple events each day makes it an ideal choice for busy households.

In terms of technology, the White Rodgers 1F78H features smart recovery and adaptive intelligent recovery functions. These technologies allow the thermostat to learn from user patterns, ensuring that the home reaches the desired temperature by the scheduled time without excessive energy consumption. This adaptive approach is beneficial for maintaining comfort while minimizing unnecessary heating or cooling.

Another significant characteristic of the 1F78H is its compatibility with multi-stage heating and cooling systems. Whether users have a conventional furnace, heat pump, or central air conditioning system, the 1F78H can effectively manage their HVAC setup, offering enhanced control over indoor climates.

The thermostat also comes with an auto-changeover feature, automatically switching between heating and cooling modes based on the ambient temperature, ensuring consistent comfort year-round. The low battery indicator and easy battery replacement are additional thoughtful features that enhance the user experience.

Overall, the White Rodgers 1F78H thermostat combines advanced technologies with user-friendly design, making it an excellent choice for homeowners seeking efficiency and comfort. Its programmable features, compatibility with various HVAC systems, and intelligent recovery technology set it apart in the market, ensuring that it meets the diverse needs of modern households. With its practicality and reliability, the White Rodgers 1F78H is well-suited for anyone aiming to optimize their indoor climate control.
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