Fuse Keeps Blowing On Furnace Control Board
Fuse Keeps Blowing On Furnace Control Board. I replaced the fuse and turned my furnace back on, when i turned my thermostat to cool the fuse burnt again. I've removed low voltage wires coming from thermostat and ac unit and i've removed the 9 pin connector for the 24 volt circuit within the furnace.
Using a jumper, jump the furnace on at the control board without the thermostat connected. The 5 amp fuse on my control board blows as soon as you ask for heat. If playback doesn't begin shortly, try restarting your device.
So I Went And Checked The Fuse.
As soon as you request heat the fuse blows and when i try to run the fan to on nothing happens. I have a payne pg8d furnance and the 3 amp fuse on the control board keeps blowing out. Consequently, this will blow the fuse on the control board, preventing the draft inducer from starting, which then.
Consequently, If The Fuse Has Blown, It Means You Have A Problem On Hand For Which You May Require Professional Assistance.
The fan control board, to which the thermostat wires attach, on my comfortmaker electric hvac has a 5 amp blade fuse which blows the second a new one is installed. If playback doesn't begin shortly, try restarting your device. Furthermore, when the fuse blows you will know which wire is causing the problem.
Main Fuse Box Is Not Tripping, But Replaced Circuit Breaker And 30 Amp Cartridge Fuses In Outside.
5 amp control board fuse keeps blowing help! If you haven’t been diligent about maintaining your furnace, all its parts will have been silently and steadily collecting debris and dust. If the fuse does blow, then the control board has a short and will have to be replaced.
What Is My Next Step?
If you fix the fuse once and it immediately blows again, you have a much larger problem on your hands that seriously needs to be addressed. So i replaced the fuse, put the panel back on, and it didn't turn on. A/c is okay, but no heat.
In Your Case, You Likely Have A Dead Short Somewhere In The Wiring Or A Bad Load That Is Going Short To Ground Causing The Fuse To Blow.
Last guy replaced board already. 3 amp fuse keeps blowing on my furnace (fixed) part 1. For example, if the yellow and common thermostat wires are touching each other then the short would not occur (fuse blows) until the air conditioner is turned on and the yellow wire becomes the power wire.
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