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I can't seem to get my pressures up on a new 3 ton 13 seer goodman? High side 200psi low 50psi not cooling the house

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You might have a bad valve on compressor.Close valve on high side and see if the low side pumps down. Of course you should have your gages hooked up.If your low side doesn't pump down you have a bad valve.

Posted on Jul 11, 2008

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Difference in seer


i would check fan speed. it's probably on high. you might be moving more air with new system. a dirty evaporater on old unit woud have gave you a larger temperture drop.

Jun 16, 2014 | Goodman Heating & Cooling

1 Answer

WHERE IS THE Goodman GSZ130301 RESET BUTTON ON CONDENSOR


No reset button. As for low/high pressure switches they reset on their own when the problem is corrected. Usually low refrigerant.

May 03, 2014 | Goodman Manufacturing Goodman GSZ130301...

1 Answer

What are GSC130481AC low and high pressure readings


65to 78 psig on low side 210 to 270 on high side. higher values when house is warm.

May 01, 2014 | Goodman Heating & Cooling

1 Answer

I just had a new Goodman 13 seer installed on 6/5/10 and the unit wont turn off and doesnt seem to cool down the house had new duct installed also they changed out the fan but it runs all day without...


CALL AN EXPERT......THE WIRES AT THE CONDENSER ARE NOT CONNECTED PROPERLY.THE UNIT SHOULD HAVE BEEN VACUUMED/PUMP DOWN BEFORE STARTING UP .POSSIBLE LOW ON REFRIGERANT ALSO.

Jul 13, 2010 | Goodman CLQ36AR49 Air Conditioner

1 Answer

Air condition jsut 10 month old ... not keeping up whith cooling


If it's only 92° outside and the unit won't cool the house, then the unit is either to small or it's low on refrigerant. They are designed to cool a house with outdoor temperatures up to 115° to 120°.Usually you need one ton a/c for every 400 square feet of house, but, you have to take into account for average outdoor temperature and humidity, windows, doors, especially sliding glass or patio doors and which side of the house they are on, insulation in walls and attic.
The air leaving your duct work going into the rooms should be about 20° lower than the room temperature, if you have a 80° room then the air leaving the duct should be around 60°. if it is then the unit is probably to small if, everything is working properly.

Jun 07, 2010 | Goodman CLQ36AR49 Air Conditioner

1 Answer

AC not cooling


first off you should have a four ton unit. what is your super heat? is it pulling attic or outside air?

May 27, 2010 | Goodman CLQ36AR49 Air Conditioner

1 Answer

3 ton condensor and 2.5 air handler


I hate to use rules of thumb but 500sqft per ton depending on your windows and insulation. you are probably ok with a 2.5 ton however it will not work with a 3 ton outdoor unit as you have figured out. depending on how long that ac has been in you may want to replace it with a 2.5 ton due to the damage to the compressor valves because of the mis match. or if the indoor is newer and the original system may have been a 3 ton then i would replace the A/H. and be prepared to replace the outdoor if the valves are to far gone. If the trane is a new high effiency 2 and the goodman is just a 10 SEER you may be able to have a txv installed on the trane unit and a kickstart device outside. but only if its a high effiency but their again if the A/C fails you couldnt have a high effiency 3 ton you would have to drop down to 2.5,

Sep 22, 2009 | Heating & Cooling

1 Answer

My low side is 90psig and high side 250 psig what is going on


If it is very hot in the house the suction will be high but not that high. If you have a 13 seer inside and a 10 seer outside your suction can be that high if you don't lower fan speed. Does your unit coll ok. Another reason if it is not cooling well is bad valve in compressor but the compressor would going out on internal overload because of getting to hot. If you have TXV metering device it could be stuck open. Check sub cooling. Put a thermometer on the 3/8 line and measure the difference between that temp and the guage temp. Look at your pressure and the temp reading is nest to the pressure. The difference should be between 12 and 16 degrees. Measure Large line temp for superheat difference should be between. 12 and 16 degrees. Feed back please

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