I am unable to select “Emergency Mode” using Home Assistant Thermostat Card or Node-Red for my Honeywell T6 Pro Thermostat.
I have two Honeywell T6 Pro zWave Thermostats. My HVAC system is a heat-pump system with a gas furnace as secondary heating source. When I first installed the Honeywell T6 thermostat in Home Assistant I could select “emergency heat” to allow the gas furnace to heat when the outside temperature dropped below about 25F.
I had Node -Red routines set up to automatically switch the HVAC system over to gas furnace by selecting “Emergency Heat”. However, that quit working and I also discovered that the Thermostat Card no longer has an “Emergency Heat” option.
The Honeywell T6 has the following modes: [“auto”, “off”, “heat”, “emergency heat”, “cool”]
The Thermostat Card now has the following modes: Auto, Heat/Cool, Heat, Cool and Off. “Emergency Heat” is no longer one of the options.
Did you find a solution for this? I am curious since I want to switch to a T6 Pro Z-Wave, and require the ability to set the emergency heat from HA through automations.
I currently use an Ecobee, which theoretically has this option but only with a cloud-based setup, and it causes plenty of problems.
I have a hybrid setup - some of my zwave devices are on the raspberry pi (zwave stick) and part of them are on a Hubitat C8 device, My thermostat is connected to the Hubitat.
So - I have not been able to select the “emergency heat” mode through Home Assistant using any of the Thermostat Cards or by using “Node-Red”.
I ended up “building” a thermostat in Home Assistant and set up “virtual switches” and connector variables in Hubitat. Using Rule Maker in Hubitat I can “contol” the thermostat using conditional arguments based on switches being on and can pass information (thermostat state, settings, etc) back to Home Assistant to keep my dashboard cards updated.
I do have a solution for you now … my son was helping me try to figure out out to pass a variable value from Home Assistant to Hubitat. He did some research and found that there is a HUBITAT “module” for Node Red, So it is possible to control a Honeywell T6 Pro that is installed on a Hubitat using Node Red,
In my case - because the outside temperatures can drop well below the Heat Pump’s capabilities - I don’t want my Heat Pump running and letting the “system” engage the Emergency Heat (gas furnace) when the Heat Pump cannot keep up. So I have my “logic” set up to switch my two HVAC units to Emergency Heat when the temperature falls below 30F.
FYI - I have Home Assistant running on a Raspberry Pi with a z-stick. I have a remote building that I want to control lights, doors, etc - so I installed a Hubitat in that building (via wifi network) and it works great. I decided to install a Hubitat in my House to control the lower floor and let the z-stick control the upper floor. HOWEVER, I have found that the Hubitat seems to be more reliable than the z-stick. So I have slowly migrated several of the z-wave devices away from the z-stick to the Hubitat. I MOVED the Honeywell T6 Pro thermostats to. the HUBITAT.
In short that is how I am able to select the Emergency Heat setting - using Home Assistant and HUBITAT.
Thanks for the update. I’ve since installed a T6 ZWave, and I can directly control the EM/AUX directly from HA automations or manually (I’ve created a network using ZWaveJS, the entity is exposed). No Hubitat needed.
On my entity, climate.t6_pro_z_wave_programmable_thermostat_with_smartstart , there is an attribute called preset_mode. By changing that, I can control whether the thermostat is calling for standard heat (a heat pump, in my case), or “Aux/EM” heat.
The preset modes are even available on the default climate lovelace card.
