Honeywell hz311 zone 3 red light

While in heat mode zone 1 and zone 2 display red light on hz322 panel ... I have a Honeywell HZ311 multi zone system. The 3amp fuse blew, so I replaced it with an ATC fuse. The power was restored and the purge light was solid Yellow. I adjusted thermostat so it would call f ...

The Honeywell HZ311 zone control panel receives signal from all 3 t-stats, you need to verify if t-stats are sending signal (voltage 24vac) to HZ311. then verify if HZ311 is sending 24v to the Zone dampers.We have hz311 honeywell true zone and air is not turning on - blinking we have 2 zones panel was just replaced! 2 weeks - Answered by a verified HVAC Technician ... it is on a Honeywell Zoning system and HZ311 and the zone 1 is red Zone 2 and Zone 3 are green and heat is red ... I am reading this thread and have the same issue of a red light on ...How to wire hz311 honeywell zone board to goodman furnace Replace honeywell w8835a with hz311 Heat pump, installation guide, connect power ... My hz311 honeywell unit had a zone 3 red light. what does this meanWiring diagram honeywell alarm ac plug manually how to Nest with honeywell hz311 : nestI have honeywell hz311 and trying to install nest ...Got a Honeywell HZ311 Truezone, starting unit (no call on thermostats, OFF), fire up purge steady yellow all 3 Zones green, then pruge light off Zone 1 red, Zone 2 green, Zone 3 red, Head LED steady r … read moreHZ311 blinking red light on heat indicator. Carrier about 2 years. Turned breaker on and off and then thermostatsts. ... Getting a blinking red light on my HZ311 zone panel. *is not turning on ... Hi. The red heat light is on for my Honeywell HZ311 panel. Heat is putting out cold air. ...I Have one furnace with a divider that allows me to control the upstairs and downstairs separately. The upstairs stoppe cooling out of nowhere. I checked my Honeywell Hz311 and noticed a solid red light on Zone 3 … read moreMy Honeywell HZ221 has a red light on zone 1, zone 2 is as well as the fan light, however the purge light is. In the - Answered by a verified HVAC Technician. We use cookies to give you the best possible experience on our website. ... Red light on my Honeywell HZ311 system (zone 3). What does that mean?Jun 17, 2022 · I have a Honeywell 3 zone system. The purge led is a solid yellow. Zones 1 and 3 are red and won't turn on. Zone 3 is the basement and very cold so rarely does AC turn on. Upstairs is not cooling down. I installed new ecobee thermostats on main floor and upstairs last winter. I have a honeywell thermostat in the basement.

If COLD, this means your thermostat is cooling correctly, but the heating isn't working properly. Contact Support at 1-855-733-5465 to find a pro-installer in your area. If WARM/HOT, this means your reversing valve may not be configured or wired properly. Continue to the Thermostat Wiring section.Got a Honeywell HZ311 Truezone, starting unit (no call on thermostats, OFF), fire up purge steady yellow all 3 Zones green, then pruge light off Zone 1 red, Zone 2 green, Zone 3 red, Head LED steady r … read moreHoneywell HZ322 - Heat 1 is lit up red, aux heat is on, OT Sensor is not connected, it has just gotten to 34 degrees outside ... The house is still not warming up quickly. My honeywell internal board shows green in Zone 1 and Zone 2 but my Heat 1 is red. I know that the light is supposed to be on, but is supposed to be red? I have searched ...Hvac service: troubleshooting honeywell zone boardI have the honeywell hz322 2 zone system. the first floor (zone1) is The red light in honeywell hz322 control board in attice for secondHoneywell zone panel, truezone® 3-zone panel, 11-1/2 height (in.), 8.Forced Zone Panels. Home Temperature Zoning is dividing your home into different zones, or areas, and then heating or cooling them as needed. It's an ideal way to eliminate hot and cold spots. Plus, zoning systems save energy by heating and cooling only the areas of your home that you're using. Home.I got the unit to reset, I had a yellow light solid, with three green lights solid, witnessed light off. Thought I had it, but when I adjusted the thermostats to take the chill off the house (62 degrees in the house and getting colder) I had the same indication as before, 1 flashing red light, 2 solid green lights and zone 3 dark.zone 3 shows red light. Ac works on 1st floor but not on the 2nd ... Hi, here is the history... built house in 2018, so entire system is only two years old. Honeywell HZ311 True Zone Panel, two story house, 1 thermostat upstairs, 1 down stairs, 1 outside unit, ...The heat LED on the Honeywell hz311 is red what does that mean. One and a half years old. Since - Answered by a verified HVAC Technician. ... OFF), fire up purge steady yellow all 3 Zones green, then pruge light off Zone 1 red, Zone 2 green, Zone 3 red, Head LED steady r ...

No power to Honeywell HZ311 Zone board. 120V on line side/primary of 24volt step down transformer, 0 volts on secondary, 0 volts at HZ311. Replaced transformer and HZ311. ... OFF), fire up purge steady yellow all 3 Zones green, then pruge light off Zone 1 red, Zone 2 green, Zone 3 red, Head LED steady r ...The strange thing is that at the HZ311 zone panel, zone 1 light stays green when the HVAC is in ANY mode (heat, cool, fan OR idle) but the zones 2 & 3 lights switch to Red when the system call for heat, cool OR fan. The damper actuators are currently connected to zone 1 so they are constantly fed 24VAC when in cool, heat, fan OR idle… SO!Split zone system red light. I have a Honeywell Z322 panel that has a solid red light on the Zone 1 light. One zone is blowing cold air fine; the other has no air flow. The two thermostats appear to have the same readings with the swirling fan symbol and "fan auto" and "system cool".Lights on the control zone board 1 and 2 zones are green and 3 zone upstairs is red. I can cut the thermostat off on 3 zone and blower stops running on the …I had one of these units in a two story house, and the red LED means that zone is closed, a green light means that it is open. So, for the panel on the left, the system is calling for heat, and only the Zone 3 damper is open (so the Zone 3 thermostat is the one calling for stage 1 heat.

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Nov 4, 2019 · Honeywell HZ311 LED. We have a 2 zones, Trane AC and Gas heat single stage (2018), Honeywell HZ311 True Zone and 2 Honeywell 7 day programable thermostats. The system is working OK, i.e. we got heat. What is a mystery to me is the LED of the HZ311 showing RED for heat, dampers when I thought they should be green. Got a Honeywell HZ311 Truezone, starting unit (no call on thermostats, OFF), fire up purge steady yellow all 3 Zones green, then pruge light off Zone 1 red, Zone 2 green, Zone 3 red, Head LED steady r … read moreGot a Honeywell HZ311 Truezone, starting unit (no call on thermostats, OFF), fire up purge steady yellow all 3 Zones green, then pruge light off Zone 1 red, Zone 2 green, Zone 3 red, Head LED steady r … read moreWe have a Honeywell HZ311 3 zone system and Zone 3 is red and not cooling. The rest of the house (and zones) are up and running and cooling. :/ ... OFF), fire up purge steady yellow all 3 Zones green, then pruge light off Zone 1 red, Zone 2 green, Zone 3 red, Head LED steady r ...

Intelligent Temperature Zoning. The TrueZONE® HZ432 is a 4 zone panel that can be used to control conventional, heat pump, or dual fuel applications up to 3H/2C. It features robust push terminals, common-sense LEDs, variable-speed fan control, and has a small footprint for mounting flexibility. SELECT A MODEL: TrueZONE® HZ432 Panel Kit.Zoning is a method of determining how people can use land and buildings within a certain area. Zoning is a method of determining how people can use land and buildings within a cert...The power was restored and the purge light was solid Yellow. ... The control board is flashing red 2 then 4 flashs. ... I have a Honeywell HZ311 zone controller. T-stats call for AC and equipment outputs do not do anything. If I wire direct, no problem. Seems like HZ311 ignores t-stat calls.My HZ311 has the zone 3 light red and the heating isnt working in that part of the house we had a power outage last night if that helps ... I have a honeywell hz311, i have a red light on zones 1 and 2 and a green light on zone 3. We just bought the house so i am unfamiliar with a 3 zone system. Air filter is fine.My Honeywell HZ221 has a red light on zone 1, ... I have a honeywell hz311 3 zone system in a upstairs an. I have a honeywell hz311 3 zone system in a upstairs an downstairs home. i have both thermostats set at 71 degs up and 71 degs down but the thermostate down stares maintains the 71 deg and the upstair ...Got a Honeywell HZ311 Truezone, starting unit (no call on thermostats, OFF), fire up purge steady yellow all 3 Zones green, then pruge light off Zone 1 red, Zone 2 green, Zone 3 red, Head LED steady r … read moreGot a Honeywell HZ311 Truezone, starting unit (no call on thermostats, OFF), fire up purge steady yellow all 3 Zones green, then pruge light off Zone 1 red, Zone 2 green, Zone 3 red, Head LED steady r … read moreHoneywell thermostat truezone zone zoning Hz311 honeywell zone system. zone 2 and 3 work fine. when i turn on Honeywell hz311 hz322 hz432 users manual 70 2321 03 zoning system design ... My hz311 honeywell unit had a zone 3 red light. what does this meanHow to wire my honeywell hz311 zone panel and transformer to my furnace Trol a temp wiring ...Got a Honeywell HZ311 Truezone, starting unit (no call on thermostats, OFF), fire up purge steady yellow all 3 Zones green, then pruge light off Zone 1 red, Zone 2 green, Zone 3 red, Head LED steady r … read moreYou can rule out the thermostat by yourself and even the wiring but you'll need a multimeter and knowledge of measuring resistance to check the wiring. To check the thermostat: Turn off the upstairs thermostat. power off the furnace/air handler with the switch on the side of the furnace. pull the downstairs thermostat off the wall and take a ...Related Manuals for Honeywell TrueZONE HZ311 . Controller Honeywell TrueZONE HZ311, HZ322, HZ432 Manual 13 pages. Zoning system design manual. Control Panel ... Zone panel professional.

I have a honeywell HZ311 - zone 1 is a solid red light and hi - I have a honeywell HZ311 - zone 1 is a solid red light and not heating, zone 2 is solid green and heating - zone 3 is red but not used - any idea what the issue is …

• Individual zone circuit breakers for easier troubleshooting and more dampers per zone • Purge light blinks for only two minutes if no DATS is present TrueZONE HZ311 How does the HZ311 differ from the EMM-3? The TrueCOMFORT HZ311 replaces the EMM-3 panel. The HZ311 is designed to install faster and reduce the number of callbacks with:The Honeywell Home TrueZONE® HZ311 Panel Kit works with a four zone panel for conventional applications and is expandable up to 3 zones (3H/2C). The intuitive setup will help you install in a snap. Features: Heat pump or dual fuel applications; RedLINK™ enabled for wireless operations when used with THM4000R1000 Wireless AdapterThermostat. HZ311 TrueZONE. Honeywell Home HZ311 TrueZONE Manuals. Manuals and User Guides for Honeywell Home HZ311 TrueZONE. We have 2 Honeywell Home …Dec 27, 2022 · Got a Honeywell HZ311 Truezone, starting unit (no call on thermostats, OFF), fire up purge steady yellow all 3 Zones green, then pruge light off Zone 1 red, Zone 2 green, Zone 3 red, Head LED steady r … read more When you are raised in a narcissistic family it can feel like there is no help. Parents who are narcissistic a When you are raised in a narcissistic family it can feel like there i...Got a Honeywell HZ311 Truezone, starting unit (no call on thermostats, OFF), fire up purge steady yellow all 3 Zones green, then pruge light off Zone 1 red, Zone 2 green, Zone 3 red, Head LED steady r … read moreGot a Honeywell HZ311 Truezone, starting unit (no call on thermostats, OFF), fire up purge steady yellow all 3 Zones green, then pruge light off Zone 1 red, Zone 2 green, Zone 3 red, Head LED steady r … read moreWarning 4. Time/date not set. (RTC not set) / RTC reset abnormally. Set the time in the detector using the app. If this warning occurs again, contact the manufacturer. Warning 5. Log memory corrupted (CRC not matched) Power-cycle the unit. The event log may be lost if corruption has occurred.Customer: Zone 2 on my HZ311 control has a red light. How do I fix it? JA: Is there anything else the Computer Expert should know before I connect you? Rest assured that they'll be able to help you. Customer: no. Answered by Kim Kimmel in 26 mins 1 year ago. Kim Kimmel. Pet Specialist.

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I Have one furnace with a divider that allows me to control the upstairs and downstairs separately. The upstairs stoppe cooling out of nowhere. I checked my Honeywell Hz311 and noticed a solid red light on Zone 3 … read moreI have a three zone ac Honeywell zone system and the purge light is on. One of the three zones clicks over but no air - Answered by a verified HVAC Technician ... zone 3 shows red light. Ac works on 1st floor but not on the 2nd ... We have an HZ311 system and an Ecobee thermostat on the main. Hi there, we have an HZ311 system and an Ecobee ...Honeywell hz311 truezone control panel for sale online Honeywell hvac 6e03 bc31 My hz311 honeywell unit had a zone 3 red light. what does this mean. Honeywell panel zoning resideo control ecomfort. Honeywell truezone thermostatHoneywell zone red hvac light Honeywell truezoneHoneywell truezone. The best 5 honeywell multi-zone thermostat ...There was more news out of the euro zone that things are finally stabilizing: some 24,000 fewer people were out of work in June, compared with May, according to Eurostat (pdf). The...Zone one has a solid red light ... I have Honeywell Hz311 with dual zone one for upstairs and downstairs and trying to install Nest 3rd Gen Thermostats. With old thermostat noticed that only have 4 wires (Y, R, W & G) and C wire is ava ...First I would split the system into portions. On the furnace will be a view port to a led light on a circuit board. Verify that led light is solid and not flashing. ... I have a Honeywell Hz311 zone controller and two Honeywell TH6210U2001 thermostats. None of which have power. ... The HZ311 has red lights for zones 1 and 3 and a green light ...I included a pic of my Honeywell HZ311 zone control panel. If I turn the thermostat off all zone lights go green. As soon as I turn on the heat, zone 1 and zone 3 goes red and the purge light comes on … read moreJust came home to a cold house. The Honeywell zone unit Hz311 is flashing purge. Then the heat tried kicking on. Purge not flashing, heat light is red, zone one green and zone 2 & 3 red. Igniter sound … read more ….

Page 3: Accessories HZ432 TrueZONE aCCEssOriEs Table 1. Recommended Thermostats. Table 3. Maximum Dampers.* System Non- Programmable Ambient Temp. Maximum Damper VA per Zone Programmable 100°F (38°C) 28.8 Single- TH5110D, TH3110D, TH8110U, TH6110D, 160°F (71°C) 16.8 Stage T87N TH4110D * Use an SDCR (Slave Damper Control Relay) for addi-...My Honeywell HZ221 has a red light on zone 1, zone 2 is as My Honeywell HZ221 has a red light on zone 1, zone 2 is green as well as the fan light, however the purge light is white … read moreMy hz311 honeywell unit had a zone 3 red light. what does this meanHoneywell home hz311 truezone installation manual pdf download Honeywell hz311 truezone control panel for sale onlineHoneywell hz311 truezone control panel for sale online. Check Details.Reviews (1) TrueZONE™ HZ322 Panel for conventional and heat pump applications up to 3 zones (2H/2C). Features. Intuitive Installer setup. Easy-to-follow, digital display. uses real language to guide installer through four easy steps. Standard Checkout Procedure. Robust Push Terminals. Common-Sense LEDs.The red light in honeywell hz322 control board in attice for secondI need help troubleshooting my ac i have a honeywell hz322 zone control Honeywell truezone hz322 3-zone control panel, 2h/2cHoneywell hz322 truezone zone control panel. controls three zones of up. Honeywell hz322 zone control panelTrouble shooting new installation of honeywell ...Red light next to zone 1 on unit display - Answered by a verified HVAC Technician. We use cookies to give you the best possible experience on our website. ... I have a honeywell hz311, i have a red light on zones 1 and 2 and a green light on zone 3. We just bought the house so i am unfamiliar with a 3 zone system. Air filter is fine.Got a Honeywell HZ311 Truezone, starting unit (no call on thermostats, OFF), fire up purge steady yellow all 3 Zones green, then pruge light off Zone 1 red, Zone 2 green, Zone 3 red, Head LED steady r … read moreWelcome to my YouTube channel!For all your business management needs, I highly recommend using Jobber. Whether you're an HVAC professional or any other servi...Replaces a Honeywell total zone system. (18 years old and one zone had failed) Everything hooked up very straight forward. Would have given it 5 stars for installation, but the push connectors are a little tricky. Use of needle nose pliers to push in and hold the wire in place while pushing in the connection button helped a lot.The Honeywell zone unit Hz311 is flashing purge. Then the heat tried kicking on. Purge - Answered by a verified HVAC Technician. ... My HZ311 has the zone 3 light red and the heating isnt working in that part of the house we had a power outage last night if that helps ... Honeywell hz311 zone 3 red light, Panels Panels from Honeywell Home All Honeywell Home Products. TrueZONE® HZ311 Panel. Description: 3 Zone, 1H/1C Panel Used for Conventional Equipment; Order #: L43-883. Internal Product ID: Catalog Pg.: 325. Mfg. #: HZ311. Brand: Honeywell Home. Box Qty: Sign In to view pricing and availability., 24 Hagerty Boulevard Suite 6 West Chester, PA 19382-7595. Phone: 610-344-9156 Fax: 610-344-0754 Email: [email protected], Honeywell hz311 zone 1 red light. Other 2 zones cooling. so far, I've reset thermostat and turned off power to hz311 via switch for 5 minutes ... OFF), fire up purge steady yellow all 3 Zones green, then pruge light off Zone 1 red, Zone 2 green, Zone 3 red, Head LED steady r ..., The Honeywell TrueZONE HZ311 is compatible with a range of HVAC systems, including heat pumps, conventional air conditioning systems, and geothermal systems. It also supports various air handlers, including variable speed and two-stage models, adding to its versatility. Overall, the Honeywell TrueZONE HZ311 is an efficient and reliable means of ..., I have a Honeywell hz311 which has got a red zone 3 light and the cool light is blinking. The air handler is running but no air in house. ... Hi, here is the history... built house in 2018, so entire system is only two years old. Honeywell HZ311 True Zone Panel, two story house, 1 thermostat upstairs, 1 down stairs, ..., The system was installed in 2012. Thanks in advance. Ok, so I turned off the zone 1 thermostat before I went to bed, and thankfully zone 2 (my bedroom) continued to work fine. First thing this morning I turned zone 1 back on and it worked normally, blowing cold air. The once-red light is now green., I recently installed 2 nest thermostats replacing my Honeywell builder grade thermostats. Heating and cooling works as expected, but when I try to run just the fan, with either of the thermostats, nothing happens 😕 The zone control calls for the Fan (light for fan turns green) but the air handler does not run at all., This TrueZONE® HZ311 Panel is for use with conventional, single stage applications, up to 3 zones. It is compatible with the Discharge Air Temperature Sensor and operates at a maximum voltage of 24 volts. This panel also comes with auto changeover and a resettable fuse. Other features include: Robust Push Terminals; Common-Sense LEDs, Got a Honeywell HZ311 Truezone, starting unit (no call on thermostats, OFF), fire up purge steady yellow all 3 Zones green, then pruge light off Zone 1 red, Zone 2 green, Zone 3 red, Head LED steady r … read more, zone 3 damper thermost at r c l1 l2 rh m38701 hz322 zone panel controlling a hydro-air application. ard or zd damper wire zones 2-3 the same as zone 1. zone panel needs to be configured to energize fan in heat. transformer aquastat fan relay center zone 3 thermostat rc w g y c7735a1000 1 remove the rh/rc jumper on the equipment terminals of the ..., Honeywell zoneHoneywell hz311 truezone control panel for sale online Honeywell hz311 zone 1 red light. other 2 zones cooling fine. one outside unit. 1 day. so far, iHoneywell truezone syst zoning singl. Check Details ... Amazon.com: 2 pack honeywell hz311 zone panel 3-zone: health & personal careHoneywell truezone hz311 3-zone control panel, 1h ..., The power was restored and the purge light was solid Yellow. ... The control board is flashing red 2 then 4 flashs. ... I have a Honeywell HZ311 zone controller. T-stats call for AC and equipment outputs do not do anything. If I wire direct, no problem. Seems like HZ311 ignores t-stat calls., Applying the Zone of Proximal Development in the Classroom - Applying the zone of proximal development can be done in and out of the classroom. Learn more about applying the zone o..., Flashing red heat light, honeywell hz311, the heater is. I cleaned off the heater elements sensors from any carbon build up ... Getting a blinking red light on my HZ311 zone panel. *is not turning on ..., This TrueZONE® HZ311 Panel is for use with conventional, single stage applications, up to 3 zones. It is compatible with the Discharge Air Temperature Sensor and operates at a maximum voltage of 24 volts. This panel also comes with auto changeover and a resettable fuse. Other features include: Robust Push Terminals; Common-Sense LEDs, I have zone 2 and 3 red light on my hz311. Carrier and it is 3.5 years old. I have turned off the system and letting it - Answered by a verified HVAC Technician. We use cookies to give you the best possible experience on our website. ... I have a Honeywell HZ311 multi zone system. The 3amp fuse blew, so I replaced it with an ATC fuse., We have a Honeywell HZ311 3 zone system and Zone 3 is red and not cooling. The rest of the house (and zones) are up and - Answered by a verified HVAC Technician. ... My Honeywell HZ311 zone controller is showing a,red light for zone 3 and the AC is not working on the second and third floors. This is a new house in 2016 and everything has been ..., My Honeywell HZ311 has a red light on. One 3 Sorry zone 3 ... I have a Honeywell 3 zone system. The purge led is a solid yellow. Zones 1 and 3 are red and won't turn on. Zone 3 is the basement and very cold so rarely does AC turn on. Upstairs is not cooling down ..., Note: Wall Thermostat wiring: Green - G, Yellow - Y, White - W/Aux, and Red-R. The spare Blue and Brown wire can be traced back to the HZ311 controller. There are two sets of wires (one for each thermostat) back to the HZ311 controller. Note: Controller Thermostat Section wiring: Green - G, Yellow - Y, White - W, and Red - R., Got a Honeywell HZ311 Truezone, starting unit (no call on thermostats, OFF), fire up purge steady yellow all 3 Zones green, then pruge light off Zone 1 red, Zone 2 green, Zone 3 red, Head LED steady r … read more, Got a Honeywell HZ311 Truezone, starting unit (no call on thermostats, OFF), fire up purge steady yellow all 3 Zones green, then pruge light off Zone 1 red, Zone 2 green, Zone 3 red, Head LED steady r … read more, Panel For Conventional, Single Stage Applications Up To Three Zones (1 Heat/1 Cool). Robust Push Terminals. Common-Sense Leds. Clean, Professional Installation. Smaller Footprint. Variable-Speed Fan Control. Not Compatible with Heat Pumps. Individual Zone., Could someone please assist in troubleshooting my AC System. My honeywell hz311 has a zone 3 red light. Zones 1 & 2 are green and cool & fan are green. Outdoor unit is on …, ed or open. Will blink for 3 minutes at power-up if DATS is not present. ZONE 1, 2 Solid green when open or opening. Solid red when closed or closing. Blinking amber when there is a damper or ther-mostat short circuit (circuit breaker trip). EM HEAT Solid when in Em Heat mode. HZ221 2 Zones, 2H/1C LED Status Heat LED Heating Mode, Shop for 1-43/50 in. 3 Zoning Control Panel from Honeywell Home At Ferguson. Ferguson is the #1 US plumbing supply company and a top distributor of HVAC parts, waterworks supplies, and MRO products. ... TrueZone® 1-43/50 in. 3 Zoning Control Panel Fast # Part # HHZ311; Item # 3406155; ... HZ311 Order # Order Date Job Name My PO# --Decrease ..., This TrueZONE® HZ322 Panel is for use with conventional and heat pump applications. It can be used with up to 3 zones. Complete with Intuitive Installer setup, the easy-to-follow, digital display uses real language to guide users through four easy steps. Other features include: Standard Checkout Procedure. Robust Push Terminals. Common-Sense LEDs., Zone 2 & Zone 3 are red on my HZ 311. It is a 4 year old we recently replaced the three thermostats with a Nest Learning e thermostat, first floor is fine, but AC seems to be constantly running on second and third floor …, Locate the zone damper in question, measure voltage across its 2 or 3 wire connections, if you have 24vac between those, and the damper remains closed, remove two of the wires... if nothing happens its mechanically stuck, unstick it or replace the damper motor., Faulty wiring, a dead battery, or a malfunctioning thermostat can lead to communication problems and result in the red light indicator. Troubleshooting Steps. Now, let’s delve into the steps to troubleshoot and resolve the red light issue on Zone 2 and Zone 3 of the Honeywell HZ311 zoning control panel: Check Thermostat Wiring, Common Causes of a Red Light on the Honeywell HZ311. The Honeywell HZ311 zoning control panel helps control the temperature and airflow in various parts of a building. But if you see a red light on the panel, it means there's a problem that needs fixing. Let's look at why the red light might be on and what it could mean for your heating and ..., Dust, moisture, or physical damage can affect sensor performance. Inspect sensors for cleanliness and damage. Replace any malfunctioning sensors as necessary. 3. Communication Issues. If the purge light is connected to a control system or network, communication problems can cause blinking., Fan in, cool light flashing, zone 1 and 3 red lights, zone 2 green. Zine 2 is main floor and is cooling. - Answered by a verified HVAC Technician ... I have a honeywell hz311, i have a red light on zones 1 and 2 and a green light on zone 3. We just bought the house so i am unfamiliar with a 3 zone system. Air filter is fine., So no heat pumps, unless someone McGuyvere'd something to work. When HZ311 is calling for heat, if you check AC voltage between R & W on the equipment section, you should read 0VAC. That is when the heat light is on. If you get this reading, it's something in the furnace. 1.