Furnace Control Board 3a Fuse Blowing

Assuming this is a fuse on the low voltage side coming off the 24 volt transformer it s possible the contactor in your condensing unit has shorted out causing it to blow the fuse. I know there is a short somewhere and i ve read on multiple posts to remove the wires from the 24 volt terminal block w r g c y and start putting them back one by one until the fuse blows again and then you ll find your problem. The most probable of these are 1.

gaf 50 year roofing shingles fussballschuhe mДdchen kunstrasen front wheel electric bike conversion kit garage door flashing home depot frosted glass arched french doors interior fusion sliding doors fruit fly light trap galvanized corrugated metal roofing panels

Blowing Low Voltage Fuse Breaker Trip Control Wiring Troubleshooting

3 Amp Fuse Keeps Blowing On Control Board Doityourself Com Community Forums

How Can I Figure Out Why The Low Voltage Furnace Fuse Blows On Heat But Not Cool Home Improvement Stack Exchange

Full Cycle Until Furnace 3a Fuse Blows Youtube

Blown 3 Amp Fuse In Ac Quick Fix Save 300 500 Youtube

The Gas Furnace Circuit Board Mounted Fuse Fuses Part 2 Youtube

Go to outdoor unit.

Furnace control board 3a fuse blowing.

This will blow the fuse on the control board causing the draft inducer to not start which then stops the rest of the furnace functions from working properly. When a thermostat wire touches the metal frame of the furnace it can deliver more voltage than the wires are designed to handle. Loose electrical cables there could be loose electrical cables inside the circuit box or somewhere in your ac which could be causing a short circuit. There could be several reasons why air conditioner keeps blowing fuse in circuit board.

The 3a fuse had blown again. 2 reconnect all wires previously disconnect at control board. 1 disconnect all thermostat and outdoor unit control wires from the terminals on indoor unit control board turn thermostat to call cool and see if fuse blows if it blows the control board in unit is shorted and will need to be replaced if not move to step 2.

Circuit Board Fuse Blows On Ac Switch Home Improvement Stack Exchange

Heat Pump System 3 Amp Fuse Blown Doityourself Com Community Forums

This Little Purple Thing I M Pointing At Is Your 3 Amp Fuse If You Are Somebody Has Replace Your Thermostat An Afterwards Furnace Gas Furnace How High Are You

3a Fuse On Circuit Board Keeps Blowing Carrier Weathermaker 8000 Ridgid Forum Plumbing Woodworking And Power Tools

Source : pinterest.com