it is a lenox whisper air. I got it to turn on after scraping the heat sensor with a screw driver but i think it might be a fluke. am i on the right track?
2006-11-04 13:38:12 · 9 answers · asked by digital tech 2 in Home & Garden ➔ Maintenance & Repairs
just want to clearify that there is a pilot flame at all times, and the screw driver was used to be able to reach in far enough without disasembling. I am very technicaly enclined but am not familiar with this system. Shoukld there always be a pilot light flame and if so why is there an ignighter? seems silly to be lighting a lit flame but it may be there incase the pilot ever blew out! How does the heat sencor work is like an old thermocouple.
2006-11-04 14:49:11 · update #1
You maybe on the right track. Your clicking you hear is probably your spark ignition still trying to light your pilot that is already burning. If the sensor does not sense pilot it will not light main burner for safety. Your sensor maybe going bad or the wire that leads to the ignition module is loose or the probe or the module itself is going bad.
On some systems the pilot does stay lit. On others it will be only be on when unit calls for it. This is to keep you from having to keep lighting the pilot. It works by the flame creating a complete circuit to the ignition module. Its a DC circuit the flame is creating a negative current to flow to the ignition module. If it is still operating since you last worked on it, it was probably loose wiring, but if you are still having problems change the sensor first, its the cheapest way to start. If it doesn't work change the module, and if it was the module don't worry about that having to change the sensor cause i would recommend you change the sensor anyway with a new module.
2006-11-04 13:47:12 · answer #1 · answered by Techman 2 · 0⤊ 0⤋
The flame sensor may not be defective. It may well be that the pilot flame sensor is not getting enough of the flame to contact it. This could be due to dirt in the pilot assembly or the pilot orifice. Try rapping (lightly but rapidly) with a plastic screwdriver handle on the silver-looking pilot gas line (which runs from the gas valve to the pilot assembly by the burner). Sometimes this will dislodge enough of the dirt to cause the ignition system to start working again. Good luck.
2006-11-05 05:10:16 · answer #2 · answered by Huero 5 · 0⤊ 0⤋
Sounds like the pilot isn't lighting. The clicking you hear is the electric ignitor cycling. If it produces a strong spark (peer inside and check this) but the pilot flame doesn't light, there may be an obstruction in the pilot orifice deflecting the pilot gas away from the spark ignitor. If there is NO spark or a weak spark when it cycles, the ignitor circuitry is defective and must be replaced. If there is a strong spark and the pilot ignites, the flame sensor or its electronic interface is probably defective and needs to be replaced. Scraping it with a screwdriver is probably not a good repair technique.
2006-11-04 14:03:20 · answer #3 · answered by hevans1944 5 · 0⤊ 0⤋
This problem is indicating that the computer/electronics that control the burner gas valve is not functioning properly. The fact that you power off and back on to make it work leads me to believe that is component is the problem. If you have some experience with electronic circuit board replacement, you can most likely find and purchase the circuit board online and install it yourself. However, this is a bit risky if you don't have the experience necessary to test, troubleshoot and resolve these types of electo-mechanical issues. I would suggest you call a trusted AC/Heat service company. If you feel that are two high, get another company to come out and give a second opinion. You can expect to pay about $75 for the diagnostic call-out, $75 for repair trip and anywhere from $100 to $500 for the circuit board if it needs replacing. Good luck and I hope this helps.
2016-03-17 06:25:25 · answer #4 · answered by ? 4 · 0⤊ 0⤋
I have worked on this Lennox Model for years. apparently the damper door has opened and the ignition initialized, the flame has lit but does not stop trying to lite, right? This means that it is not proving flame, till it proves you will have no heat. Solution? possible flame sensor failure or need to replace the ignition module. These are not the only possible solutions, just the most likely
2006-11-04 20:03:01 · answer #5 · answered by Leo C 2 · 0⤊ 0⤋
sounds like to me that the sensor that senses the flame is not working properly and the elctronic starter is trying to restart the pilot. once the sensor senses heat then it would stop the starter and then the burners would then be put in the postion to actually fire up. if you can take out the heat sensor and replace it and then see what happens. or else take it out and clean off the crap build up and reinstall it and see what happens but look into properly replacing it. if that does't work look at getting a pro to look at it. but just sounds like the sensor is the problem
2006-11-04 16:01:12 · answer #6 · answered by Anonymous · 0⤊ 0⤋
How do I get to heat sensor in lenox whisper heat furnace
2015-05-12 17:05:12 · answer #7 · answered by Bud 1 · 0⤊ 0⤋
...seems to ME....that its TRYING to start,and it isnt...possibly because it already sees a flame....because the sensor may be bad...really need a bit more info tho...
2006-11-04 14:09:26 · answer #8 · answered by Anonymous · 0⤊ 0⤋
I'm not usualy one to suggest calling on a proffesional, but in this case you're asking for an explosion that could hurt, or kill someone.
CALL SOMEONE!!
2006-11-04 14:28:33 · answer #9 · answered by Mr. KnowItAll 7 · 0⤊ 0⤋