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I have a model 8366 programable thermostate I am unable to…

Customer Question
I have a model...

I have a model 8366 programable thermostate I am unable to change the the temp and our furnace will not run can you please help me, thanks

Contractor's Assistant: Just to clarify, do you think this is a larger HVAC problem, or something specific to the thermostat?

I think it is the therostat

Contractor's Assistant: Do you plan on doing the work yourself?

If you can walk me thrue the programing

Contractor's Assistant: Anything else we should know to help you best?

Im not sure

Submitted: 8 months ago.Category: HVAC
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Answered in 6 minutes by:
1/5/2018
HVAC Technician: airheatman, HVAC Technician replied 8 months ago
airheatman
airheatman, HVAC Technician
Category: HVAC
Satisfied Customers: 9,541
Experience: Furnace, A/C and heat pump specialist.
Verified

Do you have system switch set to HEAT and try pressing UP arrow while system is set for HEAT?

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Customer reply replied 8 months ago
i have done that I also checked the batteries and they are good
HVAC Technician: airheatman, HVAC Technician replied 8 months ago

If you are set to heat but the numbers will not change when pressing up arrow, the thermostat may have taken a power spike.There is one trick I have seen work to reset these digital thermostats that works sometimes. That is to remove batteries and install them backwards for 5 seconds, Then remove and install properly,If this does not reset the little computer board in the thermostat you will need to replace the thermostat.

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Customer reply replied 8 months ago
i can now raise the temp number but furnace still will not start
HVAC Technician: airheatman, HVAC Technician replied 8 months ago

OK your issue is not with thermostat. If you have a meter and want to troubleshoot the furnace Can you look inside the burner compartment on label on side panel and get me the model on your furnace? Then look in blower compartment and see if there is an error light blinking that will guide us in determining what is failing with the furnace.)Not if no peep hole and you have to remove blower panel to see control board, it will be necessary to hold door switch in to have power to board)

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Customer reply replied 8 months ago
the only model# ***** found is dgaa077bdtb
Customer reply replied 8 months ago
i do not see and error light
HVAC Technician: airheatman, HVAC Technician replied 8 months ago

OK this is a mobile home furnace. There will not be an error light.Unless well versed in troubleshooting these furnaces you will need to call in a local service tech.The thermostat question is a pretty DIY issue but troubleshooting this will go well beyond a simple question.

The website does offer phone calls for an additional fee to guide you in troubleshooting.Hoevery I am not currently set up to take phone calls.If you want to speak with another tech by phone for the additional troubleshooting fee you can request it and if a tech is available they can guide you..

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