furnace blower not working after power outage
Your furnace needs a new circuit board we install lennox furnaces in Saskatchewan and the first versions of those boards had trouble with the blower relay whenever there is a power outage and they need to be reset. Remove the fuse for the furnace and inspect it for burns or breaks in the fuse.
How To Find And Reset Your Furnace Motor Blower Repairman App
Furnace problems from minor to severe generally stem from one of the following 10 issues.
. If your service panel uses fuses turn the main switch off to verify a blown fuse. I need your advice for dealing with furnace problems after power outageIf you have a heat pump the refrigerant in the compressor takes a while to warm up a. Find the circuit breaker marked condenser or outdoor air conditioner and see if it.
As a general rule on most furnaces I have seen the answer is NO. Check Your Furnace Air Filter. The main electrical system that will prevent a furnace from turning on if the power fails is the electrical igniter.
If this is the case your furnace will not work and youll need to call a repair professional. Air filter is clogged Pilot light is out Thermostat is incorrectly set Gas supply is turned off Air ducts are clogged Furnace needs servicingreplacement. If either one was blown the outdoor unit would not get a signal to run when called by the thermostat.
With so many complex mechanisms involved in a heating system any given number of issues could cause the furnace to malfunction. The air handler indoors is still powered so the blower fan pushes air through the ducts its just not cooled. How does the furnace know the difference between a power failure and someone just turning the switch off and on.
There was a storm and we lost power for a couple of seconds. A tripped circuit breaker A bad capacitor Compressor failure Sound confusing. These ignition systems have started to replace the old-fashioned pilot light as the method for starting the burners.
There are several reasons your furnace might be running but isnt blowing any air. This video provides information on how to troubleshoot a furnace blower that wont run and the most likely defective parts associ. Once you have done that open the furnace door and find the furnace blower motor to check if the belt is damaged or misaligned then take appropriate steps to replace it.
If so its possible a fuse has blown. You can also try resetting the thermostat before resetting the actual unit itself. If its the one with 2 blue wires coming out of it it sounds like your centrifical switch is getting stuck and isnt allowing power to get to the iginition control module or the main gas valve sounds like you have a standing pilot unit try giving the black motor a tap near the bottom half of it where those blue wires are it should fire up if.
Jut turn the furnace off at the switch on the furnace for 30 seconds and then back on. Check for Blown Fuses Was the power outage the result of a severe lightning strike. An electric furnace that is not blowing air could be the result of various problems.
The Temperature Is Incorrectly Set. The AC was working during this time but whenever the power came back in a couple of seconds the AC was not blowing. These reasons can include.
Dont worrywell explain each of these problems and how to solve them. The following are the most common causes and what to do. You should be changing your air filter.
They are safer and more reliable than pilot lights. Usually the 3 main reasons your AC wont blow cold air after a power outage include. Dust Dirt and Debris Problems The Three Ds.
Start by disconnecting the power from your unit for around 60 seconds. After that you can use the reset button located on the unit to get the unit to reset. Locate and turn off the main circuit breaker or safety switch for the furnace to ensure there is no power going to it.
Replace a broken fuse to restore. You should be able to find this relay or sequencer by tracing the blower motor wires back to the relay or sequencer. Jul 31 2011 0145 PM.
If your blower seems to run but the furnace isnt producing warm air at the supply vent you may have an issue with the fan the limit switch the thermostat or the control board. Blower in Lennox Unit is not Working after Power Outage. If your air conditioning system isnt blowing cool air following a power outage go to your home electrical panel and look for the circuits which power your cooling system components.
In many cases the control panel may be flashing with an error message alerting you to the need for a replacement or repair. Your filter could be so saturated with dust and debris. If the blower is not running now then there is a high voltage problem with the indoor blower motor and it will probably end up being either the circuit board on the indoor unit or the capacitor for the motor.
Need an air repair technician right away. Hi I have a Lennox AC unit that was working just fine until last night. The Furnace is Set ON Youre probably aware that the furnace takes instructions from the thermostat.
Furnace blower not running. If power is going into the sequencer or relay and not coming out when the 24 volts are applied then you have a relay or sequencer problem and the sequencer or relay will need to be replaced to get your blower running right again. In that case even though the furnace is actually blowing air your clogged filter is blocking it from making it into your ducts.
Next check your heaters air filter as this can cause a furnace to stop blowing air. Originally Posted by joemach.
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