* APPEARS NEXT TO TEMPERATURE

There is a 3 amp fuse in the main circuit board. If this fuse is bad ,nothing will work but because of the batteries in the thermostat it will lead you to believe that the unit is working properly,however, it is only showing you what is supposed to be. Replace the fuse and everything will work.

Hi. This is Aaron Moratalla from White Rodgers. For 1F78-151, "WE" means Wednesday. If left side temperature is stuck at 67F and there's no Hot air coming out then try ressting your thermostat by:
1. set system to Heat mode
2. press simultaneously the Up, Down arrows and Time button for 2sec.
3. the screen should blank out momentarily then show 62F in the right side.
4. set a higher temperature in the right side than the left side of LCD to have a call for heat.

If you are still having problems please don't hesitate to call our Tech Support line at 800-284-2925. Thank you for choosing White Rodgers!

Thank you for your interest with Emerson White Rodgers. My Name is Joselito Laxamana from technical department. 156-5299 is a invalid model number To better assist you with this contact White - Rodger's technical department at 18002842925.

Electronic Digital Multi-Stage Thermostat 1F83-261

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• Hi, This is a good stat and I have used it alot in the past as it is a older model. If you have 24 volt control voltage at the stat, and the battires are good, then you have a malfuntion in the ciruitry and will need to replace it. I have sent you a ton of manuals on there products I thiught they may be helpful. Please dont forget to rate this post as I know you will be kind. I hope I have been of help to you.
• Sincerely,
• Shastalaker7
• A/C, Heating Contractor

Set System Switch to Cool and lower setpoint below room temperature.
Verify thermostat and system wires are securely attached.
Diagonistic: Set System Switch to Cool and lower the setpoint below the 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 ( . 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.

Reset the thermostat by pressing , UP,DOWN and TIME at the same time.

Steps that you need to do.
First is to reset the unit by pressing the reset button for two seconds right below the fan switch.
Second is to re- program the thermostat correctly, make sure that the unit work fine when the thermostat has been bypass.
Then monitor the thermostat operation, I think this will resolved the problem. If you need further assistance call this number 18002842925.
I have attached the link of the MANUAL

follow this guide:
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. 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.

MANUAL OPERATION
• HOLD TEMPERATURE — With the SYSTEM switch set to
HEAT or COOL, momentarily press HOLD button. HOLD
will be displayed. Use UP or DOWN to adjust the temperature.
The thermostat will hold the room temperature at the
selected setting until you press RUN button to return to
program operation.
This is on page 6 of the manual
Link: Installation Instruction

You need to manually operate the thermostat by using the hold button. You did not specify the model number but try this procedure:
MANUAL OPERATION
• HOLD TEMPERATURE — With the SYSTEM switch set toHEAT or COOL, momentarily press HOLD button. HOLD will be displayed. Use UP or DOWN to adjust the temperature.The thermostat will hold the room temperature at theselected setting until you press RUN button to return to program operation.
If you need further clarification please cal hometechline 18002842925. I hope this will help you a lot...

if it has batteries try replacing them, you can also go to white rodgers website and download the book for your stat to see what the star annotates