Furnace is not working, digital thermostat does not register
I have a Bryant 2002 furnace with an electronic filter. My problem is that the furnace is not coming on and the digital thermostat does not register anything...it is completely blank. I have checked the furnace circuit breaker as well as examining the micro filter system. I did not check the air conditioner breaker though. Would checking this also be needed? Thanks.
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You need to have/ know the "fault code" chart for that specific furnace. Count the number of flashes and refer to chart. Look on the inside of the furnace blower door or other panel. Also look up on internet and print it off. If the furnace was allowed to run during the remodel it voids the warranty automatically. Read the installation manual. Try resetting the electronic board by turning the power off then back on.
Does the display seem a little dim? If so replace the batteries. Anything else may be a furnace issue not the thermostat. Look at the furnace and see if you can view any error codes on the circuit board
Should reset by shutting off power to furnace and then back on
With a Bryant if you turn power off and then on, if the thermostat
is calling for heat when power is restored blower will run for couple
minutes before trying to fire furnace. This is normal
Turn the power off to the Air handler unit.
Remove the thermostat from the wall, (Just the face part).
Look on the back side of the thermostat and verify that the jumpers are set to electric and not gas, otherwise the fan will not run during heat mode, they come from the factory usually set for gas.
If this is a electric heater this will solve your problem, If it is gas then it will be more detailed. Once you put it back on keep in mind that most thermostats have a 3-5 minute delay so just give it a little time and the fan should then work once you have the jumpers in the correct position.
first off buy yourself a honeywell stat, in my personal opinion lux stats are garbage, I have run into so many that are bad stats !!! but as far as your fan not shuting down, sounds to me like your fan center on your circuit board is bad and will not shut down the fan when needed, you will have to replace the circuit board, as the fan center is a part of the whole of the circuit board, hope that helps
the hot serface igniter may nead to be replaced again . if the is a lack of air
[ have this checked} getting to and frome the furnace it may be causing the furnace to cycle off the burner duing call for heat. it recycles back on and off untill the thermostat is saticfied. this means you are reusing the igniter more often the once a call for heat . therefore shorening it life expectancy.. make shure you are not blocking the air flows with over filtering ..whitch i have found to be the most common mistake . this and not changing or cleaning air filters often enough.