Common Support Questions


After the OJ Microline UWG5 app has been installed on each user's device, utilize the same login credentials to operate the nJoy thermostat(s).

There is no need to set up secondary accounts to operate the nJoy thermostat.

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Download the nJoy UWG5 app and ensure Bluetooth is enabled on your phone. Open the app, tap "Get Connected," and follow the on-screen instructions to complete the setup.

Note: The thermostat will not appear in your phone’s Bluetooth device list. Use the nJoy UWG5 app to complete the connection.

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A GFCI/GFEP (Ground Fault Circuit Interrupter / Ground Fault Equipment Protection) works differently than a circuit breaker by specifically detecting a small imbalance in electrical current between the hot and neutral wires, which indicates a potential ground fault (like a person touching a live wire), and instantly shutting off the power to prevent shock, while a circuit breaker only trips when there's a significant overload in current flow on the circuit, like a short circuit or too many appliances plugged in.

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It is highly recommended to use a smartphone for the initial thermostat setup. Download the nJoy UWG5 app and ensure Bluetooth is enabled on your phone. Open the app, tap "Get Connected," and follow the on-screen instructions to complete the setup.

Note: The thermostat will not appear in your phone’s Bluetooth device list. Use the nJoy UWG5 app to complete the connection.

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Relays can fail due to excessive current or voltage. When a relay is exposed to too much current, the contacts can burn out. High voltage can also damage the coil. Other reasons include mechanical wear and tear, dust or dirt buildup, and moisture. These factors can cause the relay to malfunction or stop working entirely. Regular maintenance and using the relay within its specified limits can help prevent failures.

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GFCI can fail for various reasons, such as wear and tear, moisture, corrosion, power surges, faulty wiring, or improper installation. Some of these causes can be prevented by regular inspection and maintenance, while others may require professional assistance. It is important to note that GFCI devices (ex. thermostat, breakers, outlets) should be tested regularly as these do wear out over time.

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No, a circuit breaker will NOT protect against a power surge; a circuit breakers primary function is to protect against excessive current flow (overload), while a surge protector is specifically designed to handle voltage spikes, which are what power surges are considered to be.

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Publications and Manuals



Specifications


Controls

App Languages English, French, Spanish

Warranty / Certifications

Approvals cULus listed
FCC ID XPYNINAW106
Hardware Version Identification Number (HVIN) NINA-W156
IC Certification Number 8595A-NINAW106
Ingress Protection (IPxx) Rating IP20
Proposition 65 Compliant Yes
SDOC Contact Email Address kne@ojelectronics.com
SDOC Contact Name OJ Electronics
SDOC Contact US Mailing Address PO Box 565. Elm Grove, WI 53125
SDOC Contact US Phone Number 262-439-8112
Warranty Limited 3-year warranty and lifetime technical support

Electrical

Battery 5 year battery backup of clock and calendar
Connection 4 wires, double pole
Connection Method Hardwired
Ground Fault Protection GFCI, Class A, 5 mA
Maximum Current 15 A
Maximum Power 1800 W @ 120 V, 3120 W @ 208 V, 3600 W @ 240 V
Supply 120 VAC, 208 VAC, 240 VAC (50/60Hz)

Connectivity

Bluetooth® Version 4.2 (BDR/EDR/BLE)
Security TLS 1.3
Wi-Fi IEEE Standards 802.11 b/g/n
Wi-Fi Radio Frequency Bands 2.4 GHz
WiFi Encryption WPA, WPA2, WPA3
Works with Hey Google or Amazon Alexa

Appearance

Color White Acrylic
Display LED Light Through

Logistics

Country of Origin (COO) Malaysia

Product Dimensions

Depth 1.73″
Installed Depth 0.46″
Length 4.98″
Weight 0.4 lbs
Width 3.09″

Thermostat

Floor Sensor Compatibility 10k ohms, 12k ohms and custom
Includes Floor Sensor 10k ohms, 15′ lead
Maximum Ambient Temperature Setting 77 °F
Maximum Floor Temperature Setting 104 °F
Minimum Ambient Temperature Setting 32 °F
Minimum Floor Temperature Setting 41 °F

Identifiers

SKU UWG5-4999-WY
UPC (GTIN-12) 881308076771

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