My Rheem Furnace is Not Heating

There is nothing worse than having your furnace conk out on you in the middle of winter. There could be several reasons behind your Rheem furnace not heating, but three of the most common reasons have to do with the timer on the blower, the flame sensor, and some are just electrical and require the attention of a technician to remedy.

The first two problems listed you can probably take care of yourself with the help of your manual, and customer support. If, however, the problem exists elsewhere you may need to get the help of a professional to get your furnace back up and running.

If you find that your Rheem furnace is not heating when the blower comes on, but a few minutes after it starts, that is most likely a problem with the timer on the blower. This is happening because the blower is coming on before the unit has properly heated up.

If this is a problem you are having, you need to adjust the timer on the blower to where it only comes on after the furnace has warmed up. You can usually find the dials for this in the control box located on the front of the furnace.

You just need to adjust it to come on when the heat is available in order to avoid several minutes of your furnace blowing cold air.

The flame sensor is a very sensitive piece of equipment located in your furnace. Sometimes the reason your Rheem furnace is not heating is because the flame sensor is dirty. Furnaces have the tendency to get dusty, and dirty especially is they use gas or heating oil.

If you find that your furnace is not heating, it is a good idea to look in your owner’s manual and follow the procedure listed to clean your flame sensor. Keeping this device clean, will not take you a long time to do, and it is an important factor in keeping your furnace running smoothly.

If you have determined that your Rheem furnace is not heating, and you have checked the timer on the blower and the flame sensor, you can do several things. You might want to first call Rheem customer support and describe what is going on, or call a technician out to look at your furnace.

Sometimes customer support can walk you through how to fix the issue you are having over the phone, which will save you time and money. If, however, the issue is more serious it is always a good idea to get a professional out to your house to protect both yourself, your home, and your furnace.

Sitting in a cold house in the middle of winter can be a miserable experience, so if your furnace is not heating, first check and see if it is a problem you can take care of yourself, and if not it is better to be safe than sorry, so call a technician.

Remember to look at your warranty and make sure you do not end up paying for replacement parts that are still covered, and also make sure you know what caused the initial problem with your furnace and what you can do to prevent it from happening again. Once your furnace is back up and running, take the time to maintain it, and you shouldn’t have any more problems with it.

Originally posted 2010-12-08 08:18:49.

One thought on “My Rheem Furnace is Not Heating

  1. maria wrubel

    My furnace -(Rheem) is lighting but does not run long enough to get up to temperature. Waht could be the problem. It has an electronic starter. Thanks!

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