Furnace Circuit Board Fuse

Is your furnace running but blowing cold air.

Furnace circuit board fuse.

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. You need to find the root cause of the blown fuse on the furnace circuit board before you cause damage to the unit. Your furnace s control board has a separate fuse that protects it from getting too hot. These fuses are sold in a package of 5 fuses.

The fuse protects the low voltage transformer in the case of a short circuit or overload in the low voltage components thermostat or wiring. This fuse is used on the circuit board of many rheem ruud and weatherking models. Just enter your carrier model number in our parts finder choose your shipping options and purchase the. If your furnace or heater won t turn on there are a couple of things you should check first before calling the pros.

This fuse replaces rheem ruud weatherking part numbers 44 atc3 and 44 24351 01. If the smoke is escaping you have to get it replaced. First the bad. This is one of the most common reasons why the furnace fuse is blown.

I d be more concerned about smoke coming out of the furnace. The good news and bad news about electric furnace troubleshooting. Fortunately you re in the right place for diy furnace circuit board replacement. Furnace blowing cold air.

This can be the sign of an electrical problem putting you at risk of a serious fire. If the fuse blows when you have no low voltage wires hooked to the furnace then you have an internal problem like a bad limit gas valve connection or control board. It isn t the hsi inducer or blower motor as these are all high voltage parts not low voltage. Here are a few of the most common problems.

Let s say you determine your carrier furnace circuit board has gone bad. Fuse in furnace circuit board keep blowing i did a recent service call and the 5 amp fuse in the circuit board on the furnace was blown. Secondary voltage fuse is open check for short circuit in secoundary voltage wiring 24 vac wiring. Thermostat setting and batteries clean air filter and closed access panel pilot light and gas valve furnace switch and electrical panel circuit breaker fuse box even though your furnace runs on fuel such as natural.

The guy has a new condensing unit installed last year. Noticed the 3a fuse was blown replaced it and taped down the switch thats on the front of the unit. Check out this post.