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how to troubleshoot control board 302075-302 for Carrier heating and cooling furnace, fan do not shots off
Optional Information: Make : carrier Already Tried: reset thermostat reset contacts on the board clean and tied up the bolts and the terminals on the board it has screw terminals on the bottom of the board from left to right C Y Gc Gh R W when i disconnect wires i marked them , but one terminal C or Y or Gc had 2 wires together ,not sure green or yellow) the tag came off and i am not sure were to connect this wire to all the wires coming from thermostat
<p>Hello, with all thermostat wires off the board, R,G,Y,C,W, and blower running nonstop even with thermostat off it is a stuck relay on the circuit board. And just so you know, that was a common problem with that board. The odds are you have a relay on the board welded shut.</p>
Billy , did you read my list of remedies and problem with the wire that wrote in
Sorry I am looking at it again. Y will have 2 wires, the yellow from the stat and one that runs outside to the outdoor unit. Then the other wire from th eoutdoor unit goes on CBilly40055.109438044
today i installed this board againwith unhooked wires from the thermostat , turn on main breaker, fan starts immediatly for couple seconds and stoppedhooked up wires from the thermostat and yellow tio the Y as you suggested and look like its working and only what is little bit confusing that when i bring temp. down for cooling to start working it get delay for fan to start for about 3-4 minutes , is it correct?and i also see mosture bild up inside the cooling relay , now i looked and found replacement HH84AA020 and ICM 271 in case if i want to swap which should i get??On the old board terminals GAS1 and GAS3 jumpered , should i do the same on the new boardthanks
<p>I would get the HH84AA020. Here is a description and install manual - <a href="http://www.xpedio.carrier.com/idc/groups/public/documents/techlit/58d-1si~1.pdf">http://www.xpedio.carrier.com/idc/groups/public/documents/techlit/58d-1si~1.pdf</a></p><p>The gas1 and gas 2 are determined by the Furnace schematic. If you need assistance with the schematic just get me the model number of the furnace.</p>
i have to get thr model is the delay that i mention in a previos reply normal?and another ?? i have a jumper between GAS1 and GAS3 not 1 and 2thanks
The delay is normal to let the coil get cold and then the blower kicks on. That gave me some grief in the field when I was installing those. Thought I had a bad board. But that is normal use. And the jumper from Gas1 and Gas 3 are depending on the schematic of your unit.
as i can see model # XXXXX does it make any sence to youyou got a great dog
<p>Ok, the jumper should not be on there from gas1 and gas3. Here is the exact manual for your furnace. The diagram is in this manual for the furnaces up to 155,000. There are 3-4 different pages of diagrams and yours is on the page lited up to 155</p><p> </p><p>That is my dog Sherman. He is by my side as soon as I get home every day. Best friend I ever had.</p>
Billy, so why its there , and the wire attached to it, should i take it out . You forgot attach the manual.Dog is the best thing happend to man and they never scream or control youthanks
<p>Sorry, get to talking about my dog and I forget my job. -</p><p><a href="http://www.docs.hvacpartners.com/idc/groups/public/documents/techlit/58gp,gs-2si.pdf">http://www.docs.hvacpartners.com/idc/groups/public/documents/techlit/58gp,gs-2si.pdf</a></p><p> </p>
thanks, Billyi got a lot of great info from you, you are goodi will leave very positive feedbackin case if i will have any problems in your field, how can i ask for you
Just log in and mention "Billy" in your opening statement and I will get it. I really appreciate your patince through this process. I thank you.
Experience: Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics