This has happened both years. I can turn the following on and off in each zone: Heat, AC, and set the fan from "auto" to "on". Of course, there’s still a problem—a failed air handler! My guess its the hz322 but I do not know how to troubleshoot it. Note: the other fans in that zone are working. My central AC air conditioner system works very well. One of my heating zones is not working The problem is that the 3rd zone (upstairs) only kicks in when the 1 zone (basement) is working. 01 - Dual Shaft Fan Motor. Check the remote. If you have a home with two or more levels or lots of square footage, you may benefit from a zoned air conditioning system. The dual shaft fan motor (or circulation fan motor) might be defective. A house or commercial building doesn’t have to lose all its heating or cooling; only one zone is affected. For example, all the bedrooms could be in one zone, the kitchen could be in another, and your living spaces could be in a third zone. First, check if the display on the remote is working by seeing if you can read the information on it. One room is hot and the rest of the house is cool. I have two zones upstairs and one of my zones no air is blowing at all. If your air conditioning unit is not responding to the remote, we recommend you follow these steps before you book a diagnostic callout. Thermal Zone Air conditioner fan not working. The … Air Conditioning Not Coming Through One Vent In My House Read More » If you have an air handler that isn’t sending out heated/cooled air or isn’t turning on at all, you’ll definitely want that fixed. I changed the thermostat in the 3rd zone but to no avail. It seems like the damper is staying open in the master bedroom and not opening in the downstairs. There is one room that the air comes through the vent but it is very weak and not cooling the room. The air comes through the vents in the rest of my home. And what about the filters? It turns out, if I hook 12 volts to the fans, they run fine. Zone 1 has air blowing and set temp and actual temp work Hi all, I just purchased my first home which is about 3000 sq ft and has a 3 zone central forced air HVAC. When it gets REALLY cold outside, my zone 1 (Living Room, Dining Room, and Kitchen) stops heating. If not, a … If it's a zoned system (2 thermostats, 1 upper & 1 lower) it's probably the same problem but it could be one of some different problems also & may need a service man to investigate it more, (thermostat, zone valve, zone pump, zone relay/switch, etc.) Contractor's Assistant: Did you double-check the thermostat's settings? There are two zones on the 1st floor and one on the 2nd floor. The fans are not getting current. The circulation fan motor has two fan blades: one on either side of the motor. The first floor zones work great! Most of the season both zones work correctly, only when it get bitterly cold out that zone 1 stops working. Home HVAC zoning allows you to individually control the rooms in your home. Both thermostats workings says cool is on. Filter switched out. Both thermostats working. One zone in my two zone home is currently not heating Background: I have lived in this home for two winters. Woody O 2006 Dynasty Common solutions for: Thermal Zone Air conditioner fan not working. What is my next step in determining why the fans are not getting current. The second floor zone has me a bit confused. Out of the three zones to have a red LED and one is green. I do not have a manual to program or troubleshoot that unit. So, its not the fans. Please help
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