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We just replaced the batteries in our thermostat and the low…

Customer Question
We just replaced the...

We just replaced the batteries in our thermostat and the low battery icon still flashes. What can we do about that?

Contractor's Assistant: I'll do all I can to help. How long have you been dealing with this?

A couple of months. This morning the furnace did not start and we thought it was caused by the low batteries but we got it to start.

Contractor's Assistant: Did you check the furnace's filters?

We have just replaced them

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

Not necessarily. Just want to know how we can address the low battery icon

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

Not at the moment

Submitted: 3 months ago.Category: HVAC
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Answered in 2 minutes by:
1/1/2018
HVAC Technician: airheatman, HVAC Technician replied 3 months ago
airheatman
airheatman, HVAC Technician
Category: HVAC
Satisfied Customers: 8,975
Experience: Furnace, A/C and heat pump specialist.
Verified

Make sure the batteries are new, alkalines and inserted proper as far as the +/_ goes.

Then give me model from inside thermostat if so

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Customer reply replied 3 months ago
the batteries are installed properly. The model number is ***** 511
HVAC Technician: airheatman, HVAC Technician replied 3 months ago

Have you tried doing a hardware reset? If not lets try this.The reset button is located inside on the rear of the unit’s circuit board. It is a small square component with a white button at it’s center

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Customer reply replied 3 months ago
We have the batteries properly installed. The low battery icon is still flashing
HVAC Technician: airheatman, HVAC Technician replied 3 months ago

Have you tried doing a hardware reset? If not lets try this.The reset button is located inside on the rear of the unit’s circuit board. It is a small square component with a white button at it’s center

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Customer reply replied 3 months ago
Ok the reset button corrected the low battery icon issue.
Next question; why does the thermostat occassionally not trigger the furnace to start after the temperature has dropped?
Customer reply replied 3 months ago
Next question, why does the thermostat occasionally not trigger the furnace to start after the temperature has dropped?
Can you please cancel our request for a live phone call and not charge us for this?
Thank you very much for your on line assistance.
HVAC Technician: airheatman, HVAC Technician replied 3 months ago

Just ignore the phone call offer.I will let admins know.

AS for the furnace not coming on when it should, these LUX thermostats are the cheapest on market and not very accurate or dependable. I recommend when you can, get rid of it and replace with a Honeywell. You can get a reliable Honeywell for about 40 bucks at Lowes or Home Depot.

If you have further questions, please let me know.
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Category: HVAC
Satisfied Customers: 8,975
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