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Daytime outside temps are about 30 and night time temps about 10. I have the thermostat set on 69 during the day and the thermostat never gets above 68 and drops to 64 or colder at night. The blower will only shut off when I set thermostat below whatever the current reading on thermostat is.

2007-01-29 01:59:36 · 5 answers · asked by Mary 1 in Home & Garden Maintenance & Repairs

5 answers

There is a thing in the furnace called a "sequencer" That is a slow acting switch that brings in elements one at a time. The contacts in these will sometimes deteroriate and a whole bank of heaters will not come on. Then your furnace will act like what you are describing.

Usually when you blow out a heater coil itself it smells like badly in the whole house for quite a while, you havent noticed that so Id sort of rule that out and go to the sequencer.

2007-01-29 03:30:02 · answer #1 · answered by James M 6 · 0 0

We are going through a similar thing right now. Only first off we found one of our ducts to a register had rusted out and fallen in the basement. The cold air was coming right up through. Also, if it's a newer furnace or something that you've recently been using for the first time, it sounds like maybe not enough BTU's. We purchased a new furnace and found out the hard way that it wasn't enough for the below 0 temps for a January in Maine. This is exactly what happens in our house.

2007-01-29 02:33:22 · answer #2 · answered by Christina C 3 · 0 0

If you are in a mobile home I would check to see if any varmint has gotten under you trailer and knocked the flex duct loose. Check your circuit breakers in the furnace and the circuit panel for the main house. It is more than likely a problem with your heating elements or the sequencer which turns your heating elements on. If you let your filter get too dirty you may have burnt out your fusible links which are safeties for the elements. You really need to have a service tech look at your problem unless you know someone very handy.

2007-01-29 02:18:05 · answer #3 · answered by Anonymous · 0 1

One possibility is where the furnace gets its air from. Does it get it from outside or inside the house? There is usually a switch or lever that allows the user to choose. If it is drawing in air from the outside, it has a much harder time heating 20 degree air than 68 degree air.

You want to check the filters too and make sure that they are not clogged.

It could be other, more serious things too that I wouldn't know too much about. You may want to look for a reset button or other switch somewhere on the furnace.

2007-01-29 02:07:24 · answer #4 · answered by ? 6 · 0 0

Maybe some of the resistive heating elements have burned out so you don't get the original capacity. I think you will need a service person.

2007-01-29 02:14:58 · answer #5 · answered by paulbyr 3 · 0 0

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