Micro-Air EasyTouch 355 Touch Screen Thermostat User Manual
Appendix A: Installation Troubleshooting
The most common problem is not knowing the thermostat operation. If the system is running a
heating or cooling cycle, the set point will turn red for heating and blue for cooling. When the
thermostat turns white, the heat pump, heat strip and furnace should all be off. The fan may continue to
run for a while after the cycle completes. If a fan is left in a manual mode, it will not shut off.
WIFI Troubleshooting
No WIFI Icon
•
•
•
•
•
•
•
•
SSID (Network name) and password are both case sensitive.
Be sure you are connecting to a 2.4 GHz network and not a 5GHz or 6GHz network.
Set the security to WPA2 and TKIP+AES if you are having trouble.
The thermostat has a limit of 31 characters for the SSID and 50 for the password.
The number of devices limit for the network is not full.
The WIFI source is not out of range or metal partitions blocking the signal
Reset the router to renew the DHCP lease.
If you are in a metal enclosure, try moving the router or thermostat a few inches (even if
temporary) and trying again.
•
If using MAC filtering, add the thermostat to the allowed devices list.
Red WIFI Icon
•
•
•
The router must have an internet connection
Server may be down, check back at a later time
Be sure there is no firewall in the router blocking the incoming messages (port 443, HTTPS).
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©2023 Micro-Air LLC
June 13, 2023, revision 1.12
Appendix B: Connecting remotely
First connection steps
1. This thermostat uses BLE which is a special implementation of Bluetooth. It is not necessary to
“Pair” the thermostat with the phone but an account must be created for operation.
2. Start the app on your smart device. The app will open and if you have not entered your account
information, it will ask you to create an account. Enter your name, email and a password at the
prompts. The system will send a confirmation email to your inbox. Enter the number in the
confirmation email when asked.
3. Once the account is created, the application may ask to add a device. If your device is powered
it will show in the list to be added to your account. Select the control and enter a name or
location for the control.
4. If you added a control, the app will ask if you want to connect to WIFI now. Enter your SSID
(network name) and password in the boxes.
Adding a control
Follow the next steps if the account process does not add a control or a second thermostat is to
be added.
1. Press “Add” on the top of the selection screen (Apple) or press the settings gear and “Add
Device” (Android).
2. The second thermostat should be listed in the new selection window. Select the device and
enter a name for the device.
3. Press OK and the screen will return to the settings menu (Android) or the selection screen
(Apple). Android users should press the back button to get to the selection screen.
4. Select the device name to open the thermostat screen.
Connecting to a new WIFI network
1. Connect to the thermostat in Bluetooth (Apple) and press the settings gear.
2. Select WIFI Setup from the settings window.
3. Enter the SSID (network name) and password (Both case sensitive).
4. Press OK and the screen will return to the selection screen. The thermostat will reset and a
green WIFI symbol will appear on the thermostat screen if the connection was successful.
Updating the thermostat
Ensuring you have the latest thermostat software is key to having all the latest features.
1. Ensure the thermostat is connected to WIFI with a green WIFI symbol.
2. Connect to the thermostat and press the settings gear, then tap Check for Updates.
3. Follow the prompts to update the thermostat or ensure that you already have the latest
software.
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©2023 Micro-Air LLC
June 13, 2023, revision 1.12
Appendix C: 9430-334 wiring
Table 5
Original
thermostat
harness color
wire color
Factory harness color (Provided to write
in your color)
Micro-Air
Function
Purple
Black
Green
White
Blue
Purple
Black
Green
White
Blue
Signal 1
Signal 2
Zone 2 On
Zone 1 High
Ground in
+12 VDC out
+ 12 VDC in
Ground out
Zone 2 High
Zone 1 On
None
Red/White
stripe
Red/White
stripe
Red
Red
Blue/White
stripe
Blue/White
stripe
Orange
Yellow
---------
Orange
Yellow
Purple
Do Not Connect
Table 5 shows the wiring functions used for this model thermostat. Option B must be selected in
the settings’ switches menu. Only two heating zones are possible in this configuration. Yellow and green
are used to turn on single stage furnaces for zones 1 and two respectively. This can be used in Aqua hot
systems as well to turn on each of the two zones for heating.
Two stage furnaces like certain suburban models use the orange and white wires to turn on the
high furnace fan and high gas valve. This feature activates high furnace if the ambient temperature is
more than four degrees below the set point.
19
©2023 Micro-Air LLC
June 13, 2023, revision 1.12
| General | Details |
|---|---|
| Name | Micro-Air EasyTouch 355 Touch Screen Thermostat User Manual |
| Make | Micro-Air |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.33 MB |
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