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Carrier 52FE312-3 Air Conditioner Questions & Answers
Carrier window unit model# 52FEA312321EC, 1PH 230/208V
YOU WILL NEED TO CHECK THE PLATE ON THE EQUIPMENT TO SEE WHAT VOLTAGE IT IS MOST LIKELY 220 VAC THEN YOU WILL NEED TO SEE WHAT YOUR PLUG IN YOUR WALL LOOKS LIKE - . - OR [ . - BRING THIS INFO TO YOUR LOCAL HOME DEPOT AND THEY WILL GIVE YOU A CORD
5/22/2016 9:56:31 PM •
Carrier...
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Answered
on May 22, 2016
Unit does not cool
It may stem from the fact that your AC may be in need of a refrigerant recharge, or, alternatively, you may need to make sure it is free of debris and obstructions, as noted in this handy, diagnostic article that addresses your issue:
http://yourhandymanzone.com/Your_Handyman_Zone_How_To_Pages_Home_Improvement_Zone_Cooling_Ventilation_Systems_Portable_Room_Air_Conditioners_Window_Air_Condit_No_Cool_Air.htm
This should help.
Good luck!
Brad
6/14/2009 8:59:10 PM •
Carrier...
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Answered
on Jun 14, 2009
Fan circuit board on a/c is blowing
You have a short somewhere in your system. It could be anything from a thermostat, thermostat wire or any component in your system. Honestly, you are better off calling a tech.
2/23/2008 3:41:41 PM •
Carrier...
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Answered
on Feb 23, 2008
Horizontal louvers
Get yourself up to the machine on a safe platform. Remove any covers that will come off easy, or tie them up out of the way. Remov e the filters. Often the whole front can be removed by just taking out a couple of screws.
Once exposed, look for something out of place. Put the louver back where it belongs to see how the hinge works. It may have jumped out of it's proper position. Ease it back in position and check it for freedom of movement. If it looks good, put it all back together.
Carrier package unit has constant 24 volts going to fan relay, even when the thermostat is off. Is this a bad control board?
I would suggest first removing all thermostat wires from their terminals on the control board. Does fan relay coil de-energize?
If not, likely control board problem. Look for stray metal small pieces of wire or screws lodged on or beneath control board before totally condemning it. If the fan relay coil does de-energize, start narrowing issue down by connecting thermostat wires one at a time starting with 24v Red, then 24v Common if present (Brn? ), then Cooling Yellow, Then Fan Green and then Heat White. It could possibly be a short in the thermostat wire.
I have a carrier gas furnace and Ac. It's has 4 wires in the system and I labeled correctly and put them in my Honeywell home rth2300 thermostat but now fan runs continuously
The Honeywell RTH2300 doesn't need a C-wire. See the documentation in the Installation & Setup section on the support page:
https://www.honeywellhome.com/us/en/support/air/thermostats/programmable-thermostats/5-2-day-programmable-thermostat-w-change-reminder-rth2300b1038-e1/ . If your old thermostat had a C-wire, check the system board at the furnace. Make sure that the G-wire (usually green) at the thermostat is also connected to the system board's G-wire connection.
First check the obvious: what is the current position of the fan switch? It should be on auto. (That's the switch on the right.)
Is the temperature that the thermostat is reading match the real temperature in the room? Check with a thermometer. If the area near the thermostat is still above (cooling) or below (heating) the set temperature, the room circulation could be a factor. I know my home's thermostat keeps the A/C running for a while after a thermometer on the other side of the living room reaches the desired temperature in the evening when parts of the house are closed off.
If the thermostat temperature reading is correct, the signal may not be reaching the system board. You can check that all of the individual wires between the thermostat and the system control board are undamaged. I've seen those thin wires break when you take them off one thermostat and connect them to another.
Another possibility is that a relay isn't working. Contact Honeywell if the temperature sensor isn't giving the correct reading. Contact a heating and cooling repair person if the problem is with a relay or the system board.
I hope this helps.
Cindy Wells
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