Question about Dayton Gas Furnace Heater

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The furnace is not getting power to ingination board.

The blower will run, but nothing else is getting power. Looked for reset switch, but didn't find on. My furnace is a Model # 3E465A, Serial # L892511193. Can anyone help.

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  • Anonymous Dec 12, 2008

    intertherm heater will not work were is the read set butten

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Jump out psi switch if it starts clean or replaceit.

Posted on Dec 17, 2008

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  • Dayton Master
  • 2,398 Answers

Check the air filter is clean , see if the theromstat is turned up to high ,

does it have a hot surface ignitor i take it this a gas furnace ?

Posted on Dec 11, 2008

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2 Answers

How do i reset power to thermostat from amana furnace is there a reset for controls?


The manual says it should automatically reset. However to manual reset the unit it says to "interrupt" the power supply. --which I think means unplug/turn off electric to unit for 20 seconds. If you do not have the manual go the manuf website and download it. --Also, this is a Goodman unit. If it does not reset something else it wrong that is preventing the unit from starting for safety reasons.

Sep 01, 2014 | Amana GMH81405DN 140,000 BTU 80% Gas...

Tip

When the furnace blower runs all the time.


Usually when the furnace blower motor runs all the time
The limit switch or rollout switch is usually open or bad.
The furnace board is seeing that one of those switches is open, so it brings the blower on to try to get the heat out of the combustion chamber area, so the switch will close. But if the switch is bad and won’t close, the furnace board will keep the blower running continuously.
Make sure the fan switch on the thermostat is not in the "ON" position it should be in the "AUTO" position.

on Dec 30, 2009 | Heating & Cooling

2 Answers

Tappan furnace blower will not shut off and furnace does not heat and red light is blinking one flash constantly.


Usually when the furnace blower motor runs all the time
The limit switch or rollout switch is usually open or bad.
The furnace board is seeing that one of those switches is open, so it brings the blower on to try to get the heat out of the combustion chamber area, so the switch will close. But if the switch is bad and won’t close, the furnace board will keep the blower running continuously.

Mar 12, 2010 | Heating & Cooling

1 Answer

Why two 24 Vac on aprilaire 700's control unit?


Okay, I looked up the installation manual online to see exactly what you are working with.
Yes the R anc C need to be hooked to the transformer supplied with the unit. The primary 120v side needs to be hooked into the power coming into the furnace. this can easily be done were the L and N get hooked into your furnace or circuit board on the furnace. This will provide the contiuous power to the unit. Preferably you will hook this after the door switch of the furnace so that you will kill the power toit if you take the blower door off.
The ODT terminals are for the outdoor sensor if you want to hook that up it will vary the humidiy in your home according to the outdoor temperature then.
Now the W/G and Cf terminals. If you have 24v coming from the HUM terminals of your furnace you DO NOT need a second transformer. You must check your furnace manual or check the voltage to them with the furnace blower energized. The HUM terminals will only have power to them when the blower should be running.
If the HUM terminals are 120v then you need to get another transformer and hook up the primary side to the HUM terminals so it is powered only when the the blower is running. Hook the secondary side to the W/G and Cf terminals.
So bottom line is that you need to figure out what voltage your furnace is giving to the HUM terminals and then go from there. Some times the EAC terminals or the ACC terminals will be 24v on the furnace board. Either of them could be used also, as they are only energized when the blower is running also.

Heatman101

Jan 25, 2010 | Aprilaire 700 Humidifier

1 Answer

Furnace not firing up...thermostat said low battery ...installed new batteries. Green (LED) light indicating power to thermostat is off. Furnace still doesn't fire up.


1) Turn the fan to on and if it runs you know that you have line
voltage to furnace and 24volts to the thermostat.

2) You could turn the furnace off remove the doors and get to the
control board. If you can find the Thermostat wires on the board
mark and remove them. If you have a typical Furnace and you
have some electrical background put a jumper wire between
terminals R and W,put the doors back on-there is a door switch
that if the panel is not put back on-it will not run. Turn your power
back on.

3) The Blower motor may come on, the induced draft blower should
come on, the glow coil should glow, the gas valve open and the
burners should come on and the unit should run.

4) If all of this happens, then you have a thermostat problem or you
have bad thermostat wires.

5) If nothing happens then you don`t have power to the furnace or the
little fuse that protects the transformer is blown.

Good Luck

Jan 08, 2010 | Honeywell Electronic Programmable...

1 Answer

Furnace blower won't stop running


Usually when the furnace blower motor runs all the time
The limit switch or rollout switch is usually open or bad.
The furnace board is seeing that one of those switches is open, so it brings the blower on to try to get the heat out of the combustion chamber area, so the switch will close. But if the switch is bad and won’t close, the furnace board will keep the blower running continuously.

Jan 04, 2010 | Amana Comfort Zone 12M32PBEH Air...

2 Answers

Coleman furnace -- fan runs, ingniter won't light,


Hi,
The chances are that the furnace was running when the power went out. This will cause the high limit switch to cutout and needs to be manually reset.
You will find that switch in the blower compartment near the blower. Usually somewher near the highest point of the cabinet.
Push the little red button firmly till it clicks.
When the power goes out while the furnace is running the heat builds up because the blower shuts down immediately and causes this limit switch to cut out.
If you have a electric tester you can also follow the low voltage circuit till you find the open switch. Ther is usually a wiring schematic on the door cover of most furnaces.

I hope that this will help you to solve your problem!

Thanks for using Fixya!!

Heatman101

Dec 09, 2009 | Coleman Propane Forced Air Heater...

1 Answer

Rudd Furnace under-achiever 90 no lights nothing power going to unit and 3 amp fuse check out OK! I had the board, and blower replaced today ran for about two hours and now nothing again!Same problem!...


You say you have power but what is the voltage? You said that that you are using a 3 amp fuse so you are referring to a gas unit. Ok, have you checked the safty switch that is located on the blower cabinet, the one that the door sits against to make sure that you have power leaving the switch? Also, on some units, there is a limit switch that come directly off of the above mentioned blower cut off switch that when tripped, will cut main power to the board. Its located on the inducer or on the flu pipe, but mostly on the inducer houseing. Make sure that all your manual reset limits are reset. But check the switch first and then work your way to the limits. This is the only thing left and was probably the probablem before you replaced the board. If you have any more questions, please respond to the thread.

Mar 31, 2009 | Ruud UBHC Air Conditioner

1 Answer

Carrier Weathermaker SXI Model 58SX8100LG Code 12


Code 12 I believe is power up after power off and a call for heat from the the thermostat. If you have a weak door switch that may be vibrating and going on and off it would cause this as would any thing that causes the power to drop low or out then reapply its self. try holding the door switch in while watching the board and after 2 or 3 minutes the furnace should go on to lite and the blower cycle off. If it stays in this mode try turning the thermostat off (heat - OFF -cool) and then push in the door switch nothing should happen except the lite on the board come on and stay on. If it does this than have someone turn the thermostat to heat and see if it starts or put the door on and set the heat and see if *** goes through the normal cycle of heating. If however it goes right back into the blower mode and shows the 12 code your problem is still with you. So next remove the wire on the "W" terminal on the board. Retry power to the door switch and now nothing should be on except the red lite. If it tries to start the 12 code and blower up again Im pretty sure you have a bad ignition/blower control board.

Mar 08, 2009 | Carrier XHB123D X/Y Series Heat/Cool Air...

1 Answer

We have a coleman evcon furnace. The furnace runs constantly. It'll get to the temperature but then the fan doesn't quit and it only blows out cool air the the reset switch pops up and needs to be be...


It sounds as if your furnace is exceeding the limit tempperature of the manual reset switch. The coleman is designed for the fan to continually run when this limit switch is tripped in order to keep the heat exchanger cool.( it is a safety feature) afew things may be happening.
1. the manual limit switch( the one you have to push) may be defective.
2. The fan may be running at too low of a speed. Turn power off at circuit breaker. locate circuit board on the board there will be one terminal that says heat if the red wire from the blower is on it tthen you may need to up the speed. follow the wires from the blower to the board if it has multiple speeds then you can isolate the red and put the blue or orange on the heat terminal.
3. the board may have an adjustable fan on and fan off pin selector if it is set up to come on to long or go off to soon it may not be controlling the temp of the heat exchanger properly.
4. I would also suggest checking to see if the orifices and gas valve are set up for your sytem correctly.
these are just simple ideas let me know how things go.

Oct 15, 2008 | Heating & Cooling

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