Furnace is at a rental. was there to experience the problem, turn up tstat, clicker came on to light pilot. pilot lights, burners light, then the blower seemed like it came on at a slow speed, seemed very slow. i am sure this isn't a variable speed blower. i have never known it to run at any other speed. i shut it off, restarted it and it came up to the right speed. now tenant calls and says no click noise to light the pilot, no nothing. i am not positive she is able to check for a blown breaker. could this be a bad blower motor? could there be another component that could affect blower speed? i would sure appreciate some ideas, i'm going to go over monday and start doing some checking. this is an older +80 unit i don't think there's a circuit board anywhere.
An expert who has achieved level 3 by getting 1000 points
An expert that got 10 achievements.
An expert that got 5 achievements.
An expert whose answer got voted for 500 times.
Re: 36e93 bryant furnace inop
CHECK THE PRIMARY CONTROL TO SEE IF IT IS LOCKED OUT. IF THE RED BUTTON HAS POPPED UP THEN PRESS IT ONCE TO START, IF IT DOESN'T RUN THEN CALL A TECHNICIAN. ALSO CHECK THE SIDE OF THE MOTOR TO SEE IF IT HAS GONE ON THERMAL OVERLOAD(LITTLE RED BUTTON). RESET IT AND THEN PRESS PRIMARY CONTROL BUTTON. IF MOTOR BUTTON HAS POPPED OUT THEN REPLACE MOTOR. COULD ALSO BE A BREAKER. GOOD LUCK THANKS FOR AN HONEST RATING AND FOR USING FIX-YA.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Code 41= blower out of valid speed range. you will more than likely need a new motor module. they are not cheap 300$ to 400$. If you call a carrier or bryant tech out they should have a test module they carry on their truck that lets you know if its the furnace circuit board or motor module.
If its a high or mid efficiency furnace most of the time the sequence of operation goes as follows: tstat calls for heat (R&W at tstat ) ventor motor starts, pressure switch closes, spark or hsi lights pilot or main burners. main blower motor comes on. From your description of a humming noise it sounds like maybe the ventor motor is seized.
I understand that your pilot light is coming on for a minute then going out. ALthough, I do not know the make or model number that you have it can be the thermocouple or flame sensor causing the problem. The way to tell which one you have is a thermocouple looks like a small copper tube running down to the pilot and the pilot flame engulfs the end of it. Here is an image
A Flame sensor has a white ceramic at the end whit a wire sticking out of the end. It also has a sheathed wire running back to the gas valve. Here is an image of a flame sensor
One of these are bad and making your pilot light go out.
The pilot is iside the burner compartment of the furnace. Remove the cover and follow the 1/8" tubing to an orifice. This is where you light the pilot. the gas valve must also be turned off for a couple of minutes before trying to light the pilot. After a few minutes, turn the valve to pilot and light the pilot. Hold it for 30 seconds and then turn the valve to "ON"
The first thing I would do is to verify that you have power to furnace. Check breakers and there may be a swith with a fuse in it mounted to side of your furnace or close by check fuse. You can use volt meter or test light to check for power. After you're sure you have power and thermostat is calling for heat if draft motor does not start you need to replace it. Draft motor is the first step in furnace start up.It should run for 30-45 seconds.then spark igniter or hot surface igniter should light pilot. It should stay on for about 20 seconds then burner should light. After burner lights the main blower should come on in about 2 mins. If you can get draft motor to run then procede to next step. Hope this helps you. Thanks
Turn the gas valve to pilot. Push knob down & hold. While holding, light pilot & keep knob held down for one minute. Let go of knob & see if pilot stays lit. then turn knob to on position. Boiler should then turn on.
HI; I need more info. How old is the equipment. name brand of equipment. Also to answer Your question ...Yes the tstat wire goes into the furnace to make several connections then a seperate cable(brown) will follow Your freon lines out to the condensor.Also try removing the cover and have a good light. Get someone to turn on heat at tstat and watch for clicking sound.Sounds like You have a spark assist pilot system. When the sparking starts the pilot light should come on. Then once the pilot sensor feels the heat comming from pilot light it will allow the gas valve to come on...BE CAREFULL...I ASSUME NO RESPONSABILITY FOR YOUR ACTIONS...alpharome416 PS.usually there is nothing to worry about just keep Your space to begin with ok.
try checking the pressure sensing switch,it has a tube that should run somewhere close to the inducer fan.sometimes this hose fills with liquids,and makes the units act funny.I don't know if you have a condensing unit or what.the furnace wont try to light if it cant tell the inducer motor is running.any induced draft unit will work this way.you can also do a temp. bypass of the pressure switch to make sure the contacts on it are closing just be sure your inducer fan is running,and you cant leave it like that its just a test.that is a safety feature you really need.
If your unit has a thermo-coupling this is most likely the issue This little sensor sends a milli-voltage to the gas valve telling it to keep sending gas for the pilot since its lit and all is good. They wear out and the gas valve thinks the flame has gone out (whick is hasnt) and kills the gas flow.