Question about Heating & Cooling
Been awhile since I worked on one, but here goes. Should be 2 rollout switches on burner assembly and another in blower housing. Most are resettableand have a red button to reset.
Posted on Nov 20, 2014
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
There may be as many as 6 limit switches on the furnace. The first thing to do is turn off the power to the furnace. Look around the burner box. You will see possibly 3 small maybe brown plastic swithes with two wires to each and a button between the wires. Press the button on each one. If it clicks that's the one tripped. There may also be the same kind of switch(s) in the blower compartment. There's a self resetting limit on the middle of the furnace it also has two wires but looks like a black or dark brown plate about 2 1/2 X 3 1/2 inches. You have to check that one with an ohm meter. If any of these switches are tripped there is a reason. Check your filter and overall air flow. with low airflow the furnace may overheat. The switches around the burner box are roll out switches. Watch to see if flames are coming out of the burner area. especially when the blower comes on. DO NOT bypass any of these switches. Call a certified tech. to check it out.
Posted on Mar 02, 2009
There should be a small set of screw lugs on the electronic board in the furnace. Look for a red wire that comes out of the transformer and follow it to find where the 24V connections are.
Posted on Sep 26, 2009
Try adjusting gas pressure. There might be an inline rollout switch that looks like an inline fuse. If that is the case several techs might over look it. The best thing to check is the schematics for the furnace in the owners manual. If you follow the low voltage, you will definately see if there is a rollout switch. If it is a new unit it has one somewhere. If you paid a company to change the burners, call them to get your money back. I have only changed burners on old janitrols where there was a factory problem with the design. They are a stationary device that has no moving parts and therefore very rare if they break. The tech probably did not know and got nervous. Call the comapny and talk to the manager about the problem. You should not have to pay for parts that were not broken.
Posted on Dec 12, 2009
to carmelmontgo; do you have a smart gas valve sometimes the wire connections get loose. remove wire connector then reinstall. also cleaning a flame sensor will work if the flame sensor is good. I would check the ground connection sometimes contaminated with rust. also I would check the gas pressure with a gas manometer...my email is firstname.lastname@example.org
Posted on Jan 21, 2010
Tips for a great answer:
Nov 19, 2014 | Heating & Cooling
Oct 24, 2013 | Ruud Corsaire 170 Limit Switch 47-25349-02...
Jan 01, 2013 | Dayton Gas Furnace Heater
Mar 05, 2010 | York Furnace Draft Inducer Blower Fasco #...
Dec 12, 2009 | Heating & Cooling
Dec 12, 2009 | Heating & Cooling
Sep 21, 2009 | Ruud UBHC Air Conditioner
Apr 03, 2009 | Carrier Heating & Cooling
Mar 31, 2009 | Ruud UBHC Air Conditioner
Jan 02, 2009 | Ruud UBHC Air Conditioner
Oct 18, 2017 | Heating & Cooling
56 people viewed this question
Usually answered in minutes!