Carrier Furnace Circuit Board Fuse

Twice in less than a 12 hour period my carrier 58cva furnace blew the 3 amp fuse in the control board.

Carrier furnace circuit board fuse. I have replacd the circuit board and nothing. Condensate collector box rotted out and leaked water onto circuit control board shorting it out and tripping circuit breaker. Electric furnace thermostat control wire. I have a carrier furnace the furnace will not kick on.

Fortunately you re in the right place for diy furnace circuit board replacement. What else could it be. Current high efficiency furnaces can be rated up to 98 5 afue which can reduce utility costs over the life of the furnace. 30 and 40 year old furnaces we see still out in the field have these relays and switches.

Some people call it a control board but whatever you call it you need a new one. He then determined it blew my carrier thermidistat. Model number is xxxxx or o for last letter. Let s say you determine your carrier furnace circuit board has gone bad.

The first time it blew the technician replaced the fuse and the system still wouldn t start. If you pull the 3amp fuse out then the fan will kick on. Your furnace s control board has a separate fuse that protects it from getting too hot. Just enter your carrier model number in our parts finder choose your shipping options and purchase the.

Inspect the fuse or fuses to determine which fuse has failed. If someone is poking around your furnace and is not too careful they could more wires so that they come into contact with the furnace s wire frame causing them to short and blow the fuse on the furnace board. There may be a number of fuses depending on the furnace system. Printed circuit boards these days are composed of shrunk down relays and switches mounted on a rigid green board to orchestrate the sequence of operations that start up the furnace and gives us heat.

After putting my old honeywell ct3600 t stat back on the system ran fine for a few hours then blew the fuse again upon the start of a cycle. Carrier model 58sx100 cc 1 series 150 serial 5186a10020. Replaced box 311 read more.