Question about Ruud Matching Split Air Conditioner
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Posted on Jan 02, 2017
You say you have power but what is the voltage? You said that that you are using a 3 amp fuse so you are referring to a gas unit. Ok, have you checked the safty switch that is located on the blower cabinet, the one that the door sits against to make sure that you have power leaving the switch? Also, on some units, there is a limit switch that come directly off of the above mentioned blower cut off switch that when tripped, will cut main power to the board. Its located on the inducer or on the flu pipe, but mostly on the inducer houseing. Make sure that all your manual reset limits are reset. But check the switch first and then work your way to the limits. This is the only thing left and was probably the probablem before you replaced the board. If you have any more questions, please respond to the thread.
Posted on Mar 31, 2009
You should check the terminals where the other end is connected, there is no guarantee that the installer followed a wire color code. There should be a diagram in the HVAC unit. Normally, you have the power wire from the XFMR, a wire for the heat, a wire for the AC, and a wire for the fan.
Posted on May 05, 2009
The two wires from condensing unit go yellow or y from Tstat and theother wire goes brown if it is a Rudd or Rheem. Red from Air HAndler goes to Tstat R Green to Tstat G white to w. If it is digital tstat brown goes to C.
Posted on Jun 05, 2009
Take the front panel off the air handler and look for a heat element. You should notice controls and relays with larger wiring to it. It may not have any heat but you can add it.
Posted on Jan 06, 2010
Have you checked to make sure that all of the supply registers are open, the air filter is clean and nothing is blocking the return air grill?
It almost sounds like you could be cycling on a limit switch.
Usually on gas furnaces, the blower is controled by the onboard controls, in the cooling mode the thermostat will control the blower.
I would be looking past the thermostat, at the furnace it self.
I hope you find this helpful. If you continue to experience problems, please let us know and we will dig deeper. :)
Posted on Apr 04, 2010
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