7 TROUBLESHOOTING

CONTINUED FROM FIFTH PAGE

 

 

 

 

 

Symptom

 

Possible Cause

 

Corrective Action

 

 

 

 

 

 

 

 

Heat, Cool or Fan Runs Constantly.

 

1.

Possible short in wiring.

 

Check each wire connection to verify they are not

 

 

2.

Possible short in thermostat.

 

shorted or touching together. No bare wire should

 

 

3.

Possible short in heat/cool/fan system.

 

stick out from under terminal screws. Try resetting

 

 

4.

FAN Switch set to Fan ON.

 

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.

 

 

 

 

 

 

Furnace Cycles Too Fast or Too Slow

 

1.

The location of the thermostat and/or the

 

Digital thermostats normally provide precise

(narrow or wide temperature swing)

 

 

size of the Heating System may be

 

temperature control and may cycle faster than

 

 

 

influencing the cycle rate.

 

some older mechanical models. A faster cycle

 

 

 

 

 

rate means the unit turns on and off more

 

 

 

 

 

frequently but runs for a shorter time so there is

 

 

 

 

 

no increase in energy use. If you would like to

 

 

 

 

 

increase the cycle time, clip Jumper W-905 as

 

 

 

 

 

mentioned in the instructions for Hydronic Heating

 

 

 

 

 

Systems. It is not possible to shorten the cycle

 

 

 

 

 

time. If an acceptable cycle rate is not achieved as

 

 

 

 

 

received or by clipping W-905 contact a local

 

 

 

 

 

service person for additional suggestions.

Cooling Cycles Too Fast or Too Slow

 

1.

The location of the thermostat and the size

 

The cycle rate for cooling is fixed and can not be

(narrow or wide temperature swing)

 

 

of the Cooling System can influence the

 

adjusted. Contact a local service person for

 

 

 

cycle rate.

 

suggestions.

 

 

 

 

 

 

Thermostat Setting and Thermostat

 

1.

Thermostat thermometer setting requires

 

The thermometer can be adjusted +/- 3 degrees.

Thermometer Disagree

 

 

adjustment.

 

See Temperature Display Adjustment in the

 

 

 

 

 

Operation section.

 

 

 

 

 

 

Blank Display and/or Keypad

 

1.

Voltage spike or static discharge.

 

Replace batteries and check heat/cool system

Not Responding

 

2.

Battery change required.

 

for proper operation. If a voltage spike occurs use

 

 

 

 

 

the Reset Operation listed above.

 

 

 

 

 

 

The Emerson logo is a trademark and a service mark of Emerson Electric Co.

www.white-rodgers.com

Page 5
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White Rodgers 1F78 installation instructions From Fifth
Page 5

1F78 specifications

The White Rodgers 1F78 is a versatile and advanced smart thermostat designed to provide homeowners with optimal control over their heating and cooling systems. As energy efficiency becomes increasingly crucial, the 1F78 incorporates a range of features and technologies that cater to modern comfort needs.

One of the standout characteristics of the White Rodgers 1F78 is its user-friendly interface. The large, backlit display makes it easy to read and navigate, even in low-light conditions. The intuitive controls allow users to set temperature preferences quickly, making adjustments to their comfort levels effortless.

This thermostat is equipped with programmable capabilities, allowing users to set schedules for different days of the week. Homeowners can program the 1F78 to lower temperatures when the house is empty during the day and increase them before they return home. This feature not only enhances convenience but also contributes to significant energy savings over time.

The technology behind the White Rodgers 1F78 includes advanced temperature sensors that ensure accurate readings, leading to efficient temperature regulation. This ensures that the heating and cooling systems only operate when necessary, minimizing energy consumption and costs.

Moreover, the 1F78 is compatible with multiple HVAC systems, including gas, electric, and heat pump systems, making it an ideal choice for various home setups. Its versatility extends to Wi-Fi connectivity, allowing users to monitor and adjust their home's temperature remotely via a smartphone or tablet app. This capability provides homeowners with the convenience of controlling their thermostat from virtually anywhere.

Additionally, the White Rodgers 1F78 features a smart recovery function that learns how long it takes to reach the desired temperature and adjusts the start time accordingly. This ensures that rooms reach the set temperature by the scheduled time without unnecessary overworking of the HVAC system.

In summary, the White Rodgers 1F78 thermostat stands out for its programmable nature, user-friendly interface, compatibility with various HVAC systems, and advanced technologies that optimize energy usage. With its focus on comfort and efficiency, it presents a compelling option for homeowners seeking to enhance their home environment while reducing energy costs.
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