Air Conditioning, Heating and Plumbing - Advice, Discussion and Tips from ARS®/Rescue Rooter®.
Welcome to the ARS/Rescue Rooter Home Connect, your online resource center for information, answers and interactive advice about air conditioning, heating, plumbing and drain maintenance. As part of our commitment to providing exceptional service, we created the ARS/Rescue Rooter Home Connect to be a useful tool with many helpful ways to find what you need.
My furnace is working properly, but the blower will only run in the on position. When I put it on auto the unit will light up and heat. The fan limit switch rotates and makes the first click which should start the fan, but after the click the fan will not come on. I can reach over and switch it to the on position and it will heat properly. Can you please help me figure out why it will not run in the auto position?
It sounds like you have the older fan/limit switch on your furnace that has three pointers on a round dial. The first pointer is the fan shut off. The second pointer is the fan on. The third pointer is the high limit. I would try lowering the second pointer to a lower setting. If this does not work, most likely the limit control, which tells the fan to turn on when the heat exchanger reaches a certain temperature, will have to be replaced. I suggest you contact a professional HVAC contractor to troubleshoot this issue.
Have a question you need answered by our experts? Click the above button, then type your question in the form provided. Watch for your question, along with an answer from one of our experts, to be posted to the blog. You can also click on the profiles below to learn more about our experts.
Joey Dooley I'm 39 years old and married to the most wonderful person in the world. I have a 13 year old son. I love to spend time at the shooting range.
Bruce Bates I've lived in 10 different states and worked in more than 30 different ARS/Rescue Rooter locations in my career.
To search the entire site for specific information, type in the key word, words or phrase you are looking for and click go.
To view topics and general information about specific categories, click
on a category below to view information relating to that subject.
© 2008 American Residential Services LLC. All rights reserved. Terms & Conditions