Replace the filter first, it maybe the filter is dirty.
-messageinbottle(Raccon);
2010-1-2(#5776745@0)
It's electronical filter, very clear. This problem happened when I tried to use a normal filter that is 4.5 inches. I only used it one night. I changed it back to electronical filter, but the problem is kept.
-funnnn(Navy);
2010-1-2(#5776788@0)
Did you check the LED flashes code on the CPU? can you tell what kind CPU is?
-mpoon(MP);
2010-1-2{292}(#5776766@0)
过一会,火焰又着了,大约20秒又灭了(风机要45秒后才启动,所以这次它没有启动),如此几次,FURNACE就停了。
base on your word, it sounds the "flame rod" not pick up the "gas burning comfirmation" (火焰又着了,大约20秒又灭了,这次 风机没有启动) check the owner manual for the code defination.
I don't know what kind CPU is? My furace is LENNOX. It looks LED flashes OK. Two LEDs keep slow flash. It changed to fast flash togather when heating demand initiated at thermostat. They'll be back to slow flash when furnace stops.
-funnnn(Navy);
2010-1-2(#5776812@0)
the two LED on the thermostat. or at the furnace unit? the fault code LED is on the CPU,. (the Furnace's controller, the thermostat. just a heating dmans caller.
-mpoon(MP);
2010-1-2{53}(#5776828@0)
What is the furna modle number and style? LENNOX ????
The two LED are on the furnace unit. Furnace is LENNOX 90UGF series units.
-funnnn(Navy);
2010-1-2(#5776881@0)
They are back to slow flash. It's alternating slow flash that indicates 1.watchguard--burners failed to ignite, 2. improper main ground or line voltage below 75 volts. Do you think what kinds problem, how to fix it? Thanks a lot.
-funnnn(Navy);
2010-1-2(#5776909@0)
I made a mistake. Alternating slow flash only means watchguard--burners failed to ignite.
-funnnn(Navy);
2010-1-2(#5776919@0)
1 现象:炉子只能工作10~15分钟,Two LEDs change to alternating slow flash: means in watchguard mode. 2 可能问题:flame sensor, burners failed to ignite, combustion air inducer, combustion air blower motor. 我也不太懂,第一次遇到炉子问题,这些都是网友告诉的或网上查的,不一定对,望专家指正。3 解决的方法:将各个air, water hose 拔下清洁一下。注意清洁water hose时,里面有水,垫块抹布,千万不要弄湿了电路板。4 问题:我认为是combustion air inducer or combustion air blower motor, 先前噪音大,工作10多分钟后很热。我在水管里弄出许多脏东西。