Central Air Conditioning Fuse Box

Before you take your air conditioning unit apart it is imperative that you know what kind of fuse you will be replacing.

Central air conditioning fuse box. To examine your fuses look for a switch near the compressor of your unit. The most logical cause of your air conditioner tripping a breaker or blowing a fuse when it comes on stems from a problem with the electrical connection the power supply or the circuit that powers the system. Step 1 know your air conditioner. 5 amp fuse in air handler blows the 5 watt fuse blows in the air handler.

The ac disconnect box is like the central nervous system of the air conditioner it protects the breakers and the fuses. Electrical panel check your main electrical panel to see if there s a circuit breaker tripped older homes use a fuse box. If the circuit breaker has tripped simply turn it off and then back on. Before you open the compartment turn off the electricity source of your entire air conditioning unit.

Cut enough conduit to reach from the disconnect box to the wiring panel on the air conditioning condensing unit. Within the shut off box there are typically fuses. If it is too weathered water and other environmental elements can destroy the breakers or fuses which in turn affects the performance of the air conditioner. If this is for an air conditioner compressor use class rk5 fuse has time delay.

Size with these class of fuse. Changed stat wires and it still blows the fuse. Disconnect box sometimes an ac unit will have a shut off box nearby. This box has space for a fuse 3 in.

This only happens when the outside unit kicks on. See name plate on your a c unit for proper sizing. The air handler will run if there is no power to the outside unit. Pull the wire through the conduit while leaving enough on each end to make the connections.

Sounds like you have a short between the outdoor unit and the control board on the air handler. Strip about 1 2 inch of insulation from the ends of the wires inside the disconnect box. When central air conditioning service fails during a heat spell you may have to wait days for an hvac repair technician or an ac contractor to show up and you ll probably pay at least several hundred for the repair. H k1 k5 not avail k9 rk1 or rk5.

Install the wires to the condensing unit.