Top 20
Carrier HCA333D Air Conditioner Questions & Answers
E7 problem in carrier ac 5 ton
Zamil 2 ton non inverter split type e7 error what is the problem !? ... There is a mode conflict. Some units are calling for heat and one is calling for cooling.
How to connect a six wire blower motor to a four wire blower motor.
It is not possible to directly connect a six wire blower motor to a four wire blower motor because they have different wiring configurations. However, you may be able to modify the wiring to make it work, but this would require a thorough understanding of electrical circuits and potentially void the warranty of the blower motor.
If you are not familiar with electrical systems and wiring, it is recommended to consult a professional electrician or HVAC technician to ensure safe and proper installation. They will have the necessary knowledge and expertise to assess the situation and provide suitable solutions.
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
Not finding what you are looking for?
