We had a leak with our hot water heater. Some water may have squirted into the furnace. Now, when we turn the heat on, the furnace burners turn on then quickly turn off again. We used a heat gun to dry the electronics in the back of the furnace, but we still have this problem. Does anybody know what is wrong? Thanks
2007-12-26 09:27:43 · 10 answers · asked by DeltaJuliet 2 in Home & Garden ➔ Maintenance & Repairs
sounds like a job, for a qualified licensed contractor. Call one.
2007-12-26 09:30:49 · answer #1 · answered by That one 7 · 0⤊ 0⤋
If it is a furnace with a draft inducter motor, you probably have water in the tube that goes between the vacuum sensor and the draft inducer housing. When the furnace is not running, just pull the hose off and see if water comes out. This is the most common problem and easiest to fix when the burners are cycling.
At any rate, there are a few things that need to be okay in order for the burners to stay lit. One other thing is the bonnet high temperature limit could be stuck or mis-adjusted.
The other thing is you may not have enough air flowing through the furnace. Make sure your filters are clean, the return air registers are not blocked off, and you have plenty of forced air registers open.
Finally, and least likely is the furnace blower motor could be running too slow too. It could be hooked to the wrong speed windings (which can happen but unlikely if the problem just showed up) However, there are sometimes when the bearings need to be lubed. The motor will slow down a bit and just draw a little higher current. Might not even be enough to notice for a long time, or cause any problems. BUT, eventually, the extra drag gets to be enough that it will overheat the blower motor and it will slow way down or even stop running due to an internal overtemp sensor which is inside the motor. When it opens up, power will not get to the motor and it won't run again until it is cooled off. It's called an internal thermal O/L protection device.
Just a few things to check.
Tom
2007-12-26 09:57:21 · answer #2 · answered by tml1x 2 · 0⤊ 0⤋
May be a flame detector problem. There is usually a gadget which verifies that ignition has occurred, and shuts things off if it hasn't. This sounds like a job for a serviceman. I once had a similar problem with my gas furnace; it uses a hot surface igniter which had broken. I replaced it.
2007-12-26 09:32:41 · answer #3 · answered by Anonymous · 0⤊ 0⤋
It sounds like a flame sensor problemor furnace control board. You can narrow it down with the step by step troubleshooting guide on the furnace page at my source.
2007-12-26 09:56:16 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Some furnaces have a secondary heat exchanger located just above the blower. They have very tight fins, resembling the outside of a air conditioning condenser. Remove the blower and crawl in with a flash light, clean the fins with a hard bristled brush and shop vac.
2016-05-26 10:16:52 · answer #5 · answered by Anonymous · 0⤊ 0⤋
i would call a qualified technician but i would look at the eletronics of the furnace.... if its been under water or water has gotten to it...but the other things that tom mentioned too are things to look at also..
2007-12-26 15:30:52 · answer #6 · answered by flashmp1 3 · 0⤊ 0⤋
You didn't melt any wires did you? But, mine does that sometimes, it means that the heating element is dirty. You just rub it with some sandpaper. Is there a blinking LED on it? If there is, figure out what the code is saying.
2007-12-26 09:32:12 · answer #7 · answered by Moral Orel 6 · 0⤊ 0⤋
You need real help, get a repair man before you burn your house down or worst
2007-12-26 09:31:42 · answer #8 · answered by Anonymous · 0⤊ 0⤋
sounds like you need a new thermostat
2007-12-26 09:30:52 · answer #9 · answered by essentiallysolo 7 · 0⤊ 0⤋
virus
2007-12-26 09:29:30 · answer #10 · answered by Wenly Beliard 2 · 0⤊ 0⤋