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Does the thermostat run off battery power or does the transformer supply power to the thermostat. You can check this by removing the thermostat face and checking for a wire connected to the C terminal. If there is no wire there then it is battery only. Replace the batteries. If you have the brand and model # of the thermostat, you can do a Google search for the owner's manual. Of course there is always the possibility that the thermostat has gone bad.
Hi, If you are talking about an led light at the furnace, and it is blank, it should have a 3 to 5 amp fuse that plugs into the board. Pull it and check to see if the metal element is blown or burnt. If so, replace it. If you are talking about some other red light, please let me know. It sounds as though you have lost the 24 volt control voltage, so see if it has a fuse on the board. Keep me posted. Shastalaker7
This generally indicates a fault with the unit. Have you tried cleaning the air filters inside the indoor unit. This may help. Otherwise call Kelvinator or LG as they have similar unit and ask for their help and if it can't be rectified call for service. I take the time to answer your question, so please rate me.
Sounds like the flame sensor is failing you. The sensor is located on the last burner looks like a thick piece of wire. Take some steel wool and gently clean the carbon off the surface of sensor. Should only take 5 or 6 strokes. Now if that does it let me know. ken
Can you find the manual and see what it reads? It would help allot, sometimes theyare on the furnace door somewhere, even inside the cabinent. Let me know, if not then we can go step by step to try to figure out your problem, and save you money for a tech to fix it.
Take the buttons off of your unit and remove the board cover by taking out the 2 screws on each side holding it in. You will See on the right hand side of the board 4 post specifically , 2 for your indoor thermistor and 2 for your outdoor. unplug your inddor from the board ( make sure power is off) and there should be a plate you can remove on the front of the unit on the right hand side of your evaporator coil , remove this and disconnect your thermistor from the coil (should snap right off ) pick up a new thermistor and just slide it right back in.