Question about Ruud UBHC Air Conditioner

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I have a Ruud air-conditioner/heat pump and it blows 5 amp fuse.

I have a 3 year old 3 ton Ruud air-conditioner/heat pump. A couple of weeks ago I noticed the outside unit was not running and after checking found the compressor contactor points burned (I replaced them). The unit still would only run if I depressed the contacts with a screwdriver. I then checked the air handler in my attic and found that the control transformer was faulity (no low voltage), so I replaced it. I thought I had solved my problems until I turned the thermostat to the cool position and it blew the 5 amp fuse located in the air handler. The blower will still run in the "on" position, but only until I switich to the cool position,

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It sounds like the thermostat wire going to the condenser is ground, It either got pulled loose and is touching the housing or as in most cases the wire got cut or was chewed by an animal. You need to turn electric off to both devices and physically inspect the thermostat wire going from the air handler to the outside unit, also inspect where they connect inside the unit. When you find the break, cut and strip each individual wire and securely wire nut each conducter red to red white to white and so on. There you go all fixed. That's when I give you the bill for $75...except this time you write that check to yourself. Good Luck

Posted on Jul 14, 2009

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Posted on Jan 02, 2017

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