Emerson White Rodger 1F80-0261 Instruction Manual

Symptom

Possible Cause

Corrective Action

No Heat/No Cool/No Fan

(common problems)

1. Blown fuse or tripped circuit breaker.
2. Furnace power switch to OFF.
3. Furnace blower compartment door orpanel loose or not properly installed.

Replace fuse or reset breaker.

Turn switch to ON.

Replace door panel in proper position to engage safety interlock or door switch.

No Heat

1. System Switch not set to Heat.
2. Loose connection to thermostat orsystem
3. Heating System requires service orthermostat requires replacement.

Set System Switch to Heat and raise setpoint above room temperature.

Verify thermostat and system wires are securely attached. Diagnostic: Set System Switch to Heat and raise the setpoint above room temperature. Within a fi ve minutes the thermostat should make a soft slick 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.

No Cool

1. System Switch not set to Cool.
2. Loose connection to thermostat orsystem.
3. Cooling System requires service orthermostat requires replacement

Set System Switch to Cool and lower setpoint below room temperature.

Verify thermostat and system wires are securely attached. Same procedures 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 fi ve minute delay before the thermostat clicks in Cooling if the compressor lock-out option is selected in the confi guration menu (Item 6).

Heat, Cool or Fan Runs

Constantly

1. Possible short in wiring.
2. Possible short in thermostat.
3. Possible short in Heat/Cool/Fansystem.
4. Fan Switch set to Fan On.

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 below. 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

Cooling Cycles Too Fast or Too Slow

(narrow or wide temperature swing)

1. The location of the thermostat and/     or the size of the Heating or Cooling     System may be infl uencing the     cycle rate.

Item 4 (CR Heat) or 5 (CR Cool) in the Confi guration 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.

Thermostat Setting and

Thermometer Disagree

1. Thermostat thermometer setting     requires adjustment.

The thermometer can be adjusted +/- degrees as listed in item 8 of the Confi guration Menu. No other adjustment is possible.

Clock Loses or Gains Time

1. Loss of power to thermostat.

The thermostat will maintain its program in memory even with no power but the clock time will be incorrect when power is restored. See No Heat/No Cool /No Fan (common problems) above for items to check in the system.

Heat or Cool Starts Early

1. EMR activated.

See Confi guration Menu (Item 3)

Thermostat Does Not Follow

Program

1. AM or PM set incorrectly in program.
2. AM or PM set incorrectly on the clock.
3. Voltage spike or static discharge.
4. See “Heat or Cool Starts Early” above.

Check current clock and program settings including the AM or PM designations for each time period. If a voltage spike or static discharge occurs use the Reset Operation listed above.

Blank Display and/or Keypad Not

Responding

1. Voltage Spike or Static Discharge.

If a voltage spike or static discharge occurs use the Reset Operation listed above.