Troubleshooting Error Code E7 on Gree Units
When I position the unit to heat I'm getting an E7 symbol where is shows temperature but it's not heating. Do I need to call my technician?
Carrier TB-NAC01-A Thermostat Modes
Does the Carrier TB-NAC01-A thermostat have a auto option?
Honeywell TH3210D1004 VS TH3110D1008
Is a Honeywell TH3210D1004 compatible with Honeywell TH3110D1008? Any differences?
Wiring Nest Thermostat to Replace Emerson 1F78-144
I have an Emerson 70 Blue thermostat (1F78-144) that I need to replace with a Nest. Can I get the wiring diagram for this?
Setting up Heat on Carrier TB-NAC01-A Thermostat
I have Carrier TB-NAC01-A thermostat. How can I turn on heat for the system?
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.
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.
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?
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?
Venstar T8900 Working with Skyport App
Does Venstar T8900 come with Skyport App? Also, is it a free app?
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?
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
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
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
How to recover Mitsubishi Electric MHK2 Wireless Thermostat Kit PIN
I have a Mitsubishi Electric Kumo Cloud MHK2 Thermostat Kit (https://shop.rfwel.com/mitsubishi-kumo-touch-mhk2-redlink-wireless-thermostat-receiver-kit/). However, my MRCH2 Remote Controller is locked and I am unable to access it. I forgot the pin. How
How to Unlock Honeywell TH6220U2000 T6 Pro Programmable Thermostat
Hoping you guys can help me out here. I cannot operate my thermostat since it is locked. How can I get to unlock it? It is a Honeywell TH6220U2000 Programmable Thermostat.
Retrofitting PAC-USWHS002-WF-2 into existing MHK1 system
Hi. This is a great forum as you guys here are way more familiar with Mitsubishi VRF controls than any of my HVAC contractors! We have 9 zones of Mitsubishi City Multi S-Series units equipped with the MHK1 thermostats and MIFH1 receivers. These are pretty