MRCOOL MST04 Smart Thermostat Owner’s Manual
| General | Details |
|---|---|
| Name | MRCOOL MST04 Smart Thermostat Owner’s Manual |
| Make | MrCOOL |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.48 MB |
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MrCool MST04 Manual: Questions and Answers
Can the MrCool MST04 work with line voltage or millivolt systems?
No. The MrCool MST04 only works with 24V AC systems. Owner's Manual, p. 7
What do the Wi-Fi and Bluetooth icons mean on MrCool MST04?
A stable Wi-Fi icon shows the device is connected to the internet. A Wi-Fi icon with a small triangle means the device is connected to the router but has no internet access. A blinking Bluetooth icon means the device is in broadcast (AP) mode and needs registration. Owner's Manual, p. 25
How do I change the mode and fan settings on MrCool MST04?
| Action | Steps |
|---|---|
| Change mode | Touch menu button once, use up or down button to select mode |
| Change fan settings | Touch menu button twice, use up or down button to select fan setting |
| Lock or unlock display | Hold Temperature Up and Down buttons simultaneously until lock icon turns solid or disappears |
What's the difference between a stable Wi-Fi icon and one with a small triangle?
A stable icon indicates internet connection with signal strength shown. An icon with a small triangle shows the router is connected but there's no internet access, requiring you to check your connection and restart the device. Owner's Manual, p. 25
Why won't my MrCool MST04 thermostat connect to the app?
Check that Bluetooth and Wi-Fi are on, your phone has internet access, your router has internet, and IP isolation is off on the router.
- Smartphone Bluetooth is turned on
- Smartphone Wi-Fi is turned on
- Smartphone has internet access
- Wi-Fi router has working internet connection
- No proxy server or authentication server configured
- No captive portal on Wi-Fi router Owner's Manual, p. 17
How do I know when my MrCool MST04 is ready to pair with the app?
Press and hold Temperature Up and Presets buttons until all buttons vanish and the Bluetooth icon starts blinking. Owner's Manual, p. 16
Setting up MrCool MST04 Smart Thermostat with the app, where do I start?
Install the MRCOOL Smart HVAC app, create or log into your account, then tap Add Device on the home screen.
- Install MRCOOL Smart HVAC app from Apple App Store or Google Play Store
- Log in or create a new account
- Tap Add Device on the home screen
- Select Smart Thermostat from the list
- Tap Continue and give necessary permissions
- Follow on-screen instructions to link your thermostat Owner's Manual, p. 21
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