Question about Intertherm P3RA-048K Air Conditioner

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No heat My air conditioner on my unit went out via power surge back in the summer. A/C man came out and rewired the circuit board so we could have A/C but the heat would not work. He had to order in a new pc board. Since all of that happened, A/C man has gone out of business. Now no one wants to come out and fix what he messed up without charging the **** out of me. I already paid once and don't want to pay again, at least not yet. Can some one tell me how to rewire that pc board to get heat, otherwise redo what he messed up. Man it is cold in hear.

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  • luckydollarj Dec 22, 2008

    It is 11 P.M. here in Texas and 14 degrees outside. I will do that in the morning and get back with you. Thank You for responding. Randy

  • Ken Bledsoe May 11, 2010

    Can you go to PC board and look at the thermostat wires what connection are they hooked to. I need to know what color goes to what letter on the board. okay? ken

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Posted on Jan 07, 2009

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Hello , I think I can help , all you really can do is order a new control board and install it unless you want to keep rewiring it from heat to cool. They are fairly easy to install , you can order it on line with the model number off the unit spec sticker/tag. Hope that helps , good luck

Posted on Dec 30, 2008

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INSTRUCTION MANUAL /INTERTHERM FURNUES


usually a power surge will fry the transformer unless sometimes if your lucky the manuf. installed a fuse either in line or on the circuit board. 5 amp or 3 amp....any thing bigger wont protect your equipment.

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