Eb20b/ electric furnance/ blower wont shut-off after heat kicks out, got to kill breaker , runs all the time, installed new thermostat, no change?????? Its cold??????

BOB BROWER

• 267 Answers
• Posted on Jan 16, 2009

SOURCE: Electric Furnace Trips Breakers

it is normal for a breaker that is run right on the edge (50 amp and your furnance to use 45) to get weak after a while . the first thing you should do is change the breaker with the same type and amp rateing . it should take care if it

SOURCE: Continuos running blower

hi! there,
blower auto shutting off and on is dependent to thermostat setting,if the thermostat acquired the temperature set it will shut of your blower,checking thermostat performance switch off unit, set this to a lower setting 1 or 0 switch on this should not runof course,if you set up this to 200 this will run until temperature reached to 200 it will stop.when you set up to 1 or 0 and the blower run thermostat is defective.
fan blower relay, if the 3 contactor is short or permanently engage while themostat reached acquired temperature your blower will still running,defenitely relay is defective.relay is dependent to thermostat switching,it supply holding coil terminal is to lock the 3 contactor to supply source to your blower.
so two common option while your blower run continously
1. shut off breaker, disconnect thermostat on two leads,its like a switch.then switch on breaker and run unit.
observe if run, your relay is defective,it was shorted on 3 contactor.
thermostat is the key to run your blower.
2. if the blower not run when you switchn onunit,then switch off again and try to short or connect the two lead using alligator clip on both side,or have it clip the terminals,then switch on again if the blower run,your themostat is defective,the high volatile of filler bulb was leak it always switch on,no play at all to off and on.
have a nice day,don't forget to rate me,thank's
ideas came from actual and theoritical analysis base on experienced and my study of industrial intrumentation.this will guide you and help you,if you understant flow of current in circuit.
have a nice day

SOURCE: Honeywell T8112 Air Conditioner Will Not Cool, But Blower Works

make sure the system switch is in the cool position, then press run program button and allow a couple of minutes for system to cycle on, if it doesn't come on press the button for lowering the set point, set it to 72 degrees and then press the hold temperature key.

SOURCE: furnance not heating

Make sure that the thermostat is set for the proper medium that you are using being gas or electric. Inside the cover of the thermostat should be a setting for either eletrical heat or gas heat. Set this switch for what your system is G for gas or E for eletric. This may solve your problem. Good Luck hope this helped you some

Dave

Testimonial: "Thanks Dave! That actually was one of the problems initially; however it is set to HE now and still isn't working; any other ideas?"

SOURCE: heat pump kicks breaker outside in main breaker panel

the start capacitor is bad. Motors develop what is known as lock rotor amperage. requires alot of torque to turn the motor until it reaches iits rated or run load amperage. the motor is not able to overcome the lock rotor amps which is usually 5x the rated amperage and always more amps than the breaker. this is usually not a problem because the start capacitor helps overcome the LRA so quickly that it doesnt trip the breaker. If the capacitor is round and bad it will be bulged at the top, if it is oval shaped then the rupture disc on top will be blown letting all the dielectric fluid out which cools the capacitor