Emerson Clicks Turning ON & OFF
My 1F85RF-275 thermostat was flashing. It stopped flashing and is now clicking as if it's trying to turn on but is unable to. Please help.
TC-24B-J vs TT-24B-J Centralized Controllers
I am looking at the TC-24B-J and TT-24B-J central controllers. What is their difference?
Fixing Incorrect Temperature and Stage 1 Showing on T721 Thermostat
I have put stage 1 showing on my T721 thermostat and want to clear it off plus it's say my room temperature is 82 which is not correct. How can I rectify this? I thought that I could program it to my phone and didn't know what I was doing. Thank you.
Fixing Honeywell's TH4210D1005 Blank Display
Hello all! I want to check what the problem is with my Honeywell TH4210D1005 thermostat. The display is suddenly blank.
Controlling Mitsubishi Unit with Dual Fuel Capable Thermostat
I have MSA-GS24NA working with PAC-USWHS002-WF-2 Kumo cloud adapter. What thermostat that has dual fuel capabilities can I use together with the interface? I have a third-party furnace.
Aidoo Wi-Fi to Daikin Sky Air or VRV
Hello, I need assistance with some guidance on how to integrate my Aidoo Wi-Fi to my VRV Daikin unit.
Airzone connection/assembly for Fujitsu 3 wire cases
How do I do connection for Aidoo Wi-Fi adapter for a Fujitsu unit with 3 wire protocol? Do I need to maintain the the thermostat controller?
Honeywell TH6320WF2003/U Backlight Disabled
I have Honeywell TH6320WF2003/U. All of a sudden, my thermostat's backlight is not working. What may be the problem?
Trane Home App for iPad
Can I download or install the app for the XR724 thermostat on my apple iPad. Is it compatible with apple?
Honeywell RCH9300WF Thermostat Screen Gone Black
There was a message on my RCH9300WF thermostat, "has no power to run system". Now the screen has gone black and there is no response.
Saving American Standard ACONT824AS52DB Thermostat Logs
Is there a way to save log files for my American Standard #ACONT824AS52DB thermostat?
Connecting my Comfortzone II system to a wireless Tsat/sytem
Can I hook a wireless thermostat to my current Comfort II 2-zone system? I want to have a smart thermostat to control my system more efficiently.
Carrier infinity compatibility with a Bryant Evolution system
Can a carrier infinity thermostat SYSTXCCWIC01-B be used with a Bryant evolution heat pump and a gas furnace?
Difference Between Trane XL824 and XL850 Programmable Wi-Fi Thermostats
Can anyone tell me the difference between Trane XL850 and XL824 Wi-Fi thermostats? According to me, they look similar?
AZAI6WSPDKC Interface adapter
For AZAI6WSPDKC Interface adapter, is the Modbus protocol accessible via Wi-Fi or only via wire?
Mitsubishi Electric PAC-USCMS-MN-1 Maintenance Tool Software
Does the PAC-USCMS-MN-1 Maintenance Tool come with the software needed?
Venstar T8900 Working with Skyport App
Does Venstar T8900 come with Skyport App? Also, is it a free app?
PAR-SA9FA-E Vs PAR-SE9FA-E Corner Panel Receiver
I have seen the PAR-SA9FA-E (https://shop.rfwel.com/mitsubishi-par-sa9fa-e-p-series-signal-receiver/) which looks somehow like the PAR-SE9FA-E Corner Panel Receiver which I need for my units. My unit is PLFY-P50VEM-E. Should it be able to work?
Mitsubishi Electric MRCH1 Thermostat Replacement
Hello all! I have a Mitsubishi Electric MRCH1 that is now obsolete. Can you tell me if the Mitsubishi MRCH2 is a direct replacement for this thermostat or I need to get the entire MHK2?
Honeywell T6 Pro Thermostat Flashing "Cool On"
Why is my Honeywell TH6320WF2003/U Lyric T6 Pro thermosat flashing "Cool on" on the display just above the schedule?
FJ-RC-WIFI-1NA Communication Error with Fujitsu System
I have set up Fujitsu FJ-RC-WIFI-1NA Wi-Fi Module for use with my #AUU12RLF unit. However, I am getting an error; Error IH1: Error in the communication of IntesisHome device with the AC unit. I have already checked the compatibility table, so compatibility
Airzone Webservers
I believe there are two modules/types of Airzone webservers to connect Airzone gateway to the cloud. Is there any difference or I can use any of them?
Wi-Fi Thermostat connection for TWE040E13FA1 Trane Electric Air Handler and Heat Pump
I want to set up a wifi thermostat (TH6320WF2003-U) that needs a C wire for its 24v power supply to my Air handler. I cannot find the C terminal on the Air handler unit so not sure which wire to use, Anyone with a way to wire these two units? Thanks!
Venstar T7850 Display Adjustment
Hi y'all. Not sure if the display on Venstar T7850 always remains on? I want to be able to read the temperature from anywhere in the room without having to touch the screen or press a button. This is crucial to me.
Removing Temperature Hold on American Standard ACONT302AS42DA Thermostat
Hi all. I am having trouble removing the temperature hold on my American Standard ACONT302AS42DA programmable thermostat similar to the one here, https://shop.rfwel.com/american-standard-acont302as42da-7-day-programmable-thermostat/. Any help?
Replacing Bryant Evolution Connex with Google Home Assistant Compatible Controller Option
I have a Bryant system that uses a communicating thermostat. It has 4 wires, A, B,C and D on the thermostat that connect to a terminal block on the furnace board. Can I use this with my furnace and retain all of the 2 way communication? I have a Bryant
Mitsubishi Electric MHK2 Set Point Scheduling
Hi all! I’m looking for a thermostat control for Mitsubishi mini split. I don’t like the supplied remote control. I’m hoping if I change to a thermostat, the mini split will not have to run continuously but will be triggered by the set points for either
Honeywell C7189R2002-2 Integration with Kumo Cloud Control and MHK2
We are having our new Mitsubishi PUZ/PVA heatpump system installed that has the MHK2 thermostat and the Kumo Cloud unit as well. Wondering if/how I can add additional sensors to the system. Can the Honeywell C7189R2002-2, https://shop.rfwel.com/honeywell-indoor-wireless-air-sensor-2-pack/
Samsung MWR-WE13U AJ007JNADCHAA connection
I got the MWR-WE13U. I am trying to connect it to the AJ007JNADCHAA unit, is there any other accessory I need to get?
Issues Connecting FJ-IR-WIFI-1NA to Starlink Router
I own model FJ-IR-WIFI-1NA and am having an issue connecting to my Starlink router's Wi-Fi. I get the yellow and green blinking lights, unknown error, also green and red flashing LEDs. It is working fine with my Netgear Extender. Any suggestions?
Ion Zoning System
Is the Ion zoning system components compatible with the comfort Zone II system? For example, can I use the Ion smart sensor with a comfort zone II system?
Trane XL1050 Humidity Display Flashing "-"
My thermostat is a Trane XL1050. In the humidity indicator, I started noticing "-" flashes instead of values. What should I do to fix this problem?
Room Temperature Varies from Thermostat Settings
My room temperature is different from what I have set on my Trane XL824 thermostat. I have measured the room temperature with a thermometer and the variance is 7 degrees. Any insights?
Enforcing Setpoints on Venstar T2050
I have my Vestar T2050 thermostat on Heat/Off/Cool mode (Not Auto). Is there a way I can overlap the schedule temperatures for heat and cool? For example if I have Away set at 62 for heat, I can't set Cool to 74. I'd Have to set cool at 60 or Heat at
Mitsubishi PAC-USWHS002-WF-2 Wireless Interface 2 Alexa/ GoogleHome Compatibility
Is it possible for me to substitute the PAR-SA9CA-E receivers currently installed in my home with newer options that offer cloud connectivity and compatibility with Alexa/Google Home? I have already connected all the other split units using their embedded
Replacing Braeburn 5200 with Totaline Thermostat
I bought a Totaline RF remote thermostat. My old Braeburn 5200 programmable the black wire was landed on the "E" terminal and the orange wire on the "O" terminal. The new Totaline has one terminal that states O/B. What do I do with the orange wire and
Application for Airzone AZAI6WSPMEL Cloud Wi-Fi Adapter for Mitsubishi Electric Units.
We have MHK2 remotes for our mini-split. If we installed this, would we still be able to use them to control it? Or if we wanted to switch to a smart thermostat like an Ecobee, would this be compatible with that?
Mitsubishi Wireless Interface 2 (PAC-USWHS002-WF-2) Wi-Fi Communication Issue
Hi all, my Mitsubishi Kumo Cloud Interface does not communicate with the Wi-Fi router. I have tried out troubleshooting including installing a new router but I still get the error message that Kumo Cloud does not connect to the router. Can any specialists
American Standard Sensor Temperature Averaging
Hi y'all. I am looking to buy the American Standard TH100NX Z-Wave Temperature and Humidity Sensor. Can I use several of these to average temperatures in rooms to control my Trane XL850 Comfort Thermostat? If that is not the case, what other options do
Fixing Mitsubishi Wireless Interface 2 (PAC-USWHS002-WF-2) Connection Problem
Hello Pro HVAC'ers! My Kumo Cloud Wireless Interface PAC-USWHS002-WF-2 like the one in the link here (https://shop.rfwel.com/mitsubishi-electric-pac-uswhs002-wf-2-wireless-wi-fi-interface-control-2/) has a problem. LEDs don't light on anymore. They were
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