The Leviton WiFi switch is turning off the product even though the 'My Leviton' app is not programmed to do so, how can I resolve this?

If the Hardwired WiFi Switch (GK16-30090-0003) is switching your towel warmer off unexpectedly, work through these steps in order: Check for hidden schedules or automations In the My Leviton app, review all scheduled events, Scenes, and Rules — not just the main schedule. An automation rule (e.g., "turn off at sunset") can trigger the switch even if no timed schedule is visible. Update the switch firmware Open My Leviton → Device Settings for the switch → check for a firmware update. Outdated firmware is a common cause of unscheduled switching behavior. Soft-reset the switch Turn off the circuit breaker controlling the WiFi switch, wait 10 seconds, then turn it back on. This resets the switch without clearing your app settings. Factory reset and re-pair If the issue persists: in My Leviton go to Device Settings → Remove Device, then re-add the switch from scratch. This clears all stored rules and schedules on the switch itself. If none of these steps resolve the issue, contact WarmlyYours technical support at 1-800-875-5285 (available 24/7).

The neutral on GFEP/GEFP/RCCB 240V breakers is not used, why do I need this then?

A 2 pole single-phase 240V circuit works by continuously monitoring the current flowing through both hot wires of the circuit. If it detects even a slight imbalance between the current on each hot wire (indicating a ground fault), it will quickly trip, cutting off power to the circuit. Essentially, it compares each leg of the 240V circuit and trips if they are not precisely equal.

What is the purpose of the Low Temperature Lockout Feature on certain snow melt controllers?

This feature prevents the snow melting system from running, by default, in temperatures below 17°F (–8.33°C), or as set by the user. At temperatures this low, it becomes difficult for the system to effectively melt the snow. It is, however, possible to turn off this feature should the system be required to keep running during these low temperatures.

I Can't Connect my Leviton Device to my Wi-Fi Network

Before you begin, please verify that you are attempting to enroll a Decora Smart Wi-Fi device. The first 2 characters of a Decora Smart Wi-Fi device is DW (e.g. DW 15S, DW 6HD, DW 15P, etc.). If the device begins with a DH or DZ (e.g. DH 15S, DZ 15S, etc.), it is not a Decora Smart Wi-Fi device and cannot be used with My Leviton.If you are having trouble connecting your Decora Smart Wi-Fi device to your Wi-Fi network, take note of where the failure is occurring during the process (as described below), and follow the troubleshooting procedures for that step in the process. Refer to this article for all of the steps in the process: Add a Decora Smart Wi-Fi Device to the My Leviton App Also, make sure that the mobile app that you are using is named My Leviton . Other Leviton mobile apps, such as Decora Smart Home or Decora Digital Dimmer & Timer cannot be used for Decora Smart Wi-Fi devices.

Unable to connect directly to the Decora Smart Wi-Fi device

In Step 2 of the process, where you attempt to connect directly to the Decora Smart Wi-Fi device that is listed in the Wi-Fi networks (it will be listed in the format of Leviton Device-xxxx ), instead of connecting you receive a message stating it is "unable to connect" or simple never connects (e.g. no check mark next to the device). If the device connects and you see this screen, skip to Decora Smart Wi-Fi device will not connect to the Wi-Fi Network or Leviton Cloud . If the mobile device does not connect to the Decora Smart Wi-Fi device at this step, please follow these troubleshooting step: Make sure you have the latest version of the My Leviton App. To ensure that you are running the latest version of the app, check for a My Leviton app update on the Apple App store or Google Play store. If available, try using a different mobile phone or tablet running the My Leviton app. Follow Steps 1 and 2 and see if you are able to connect to the device. If you are able to connect, see if you can complete the process. Contact our technical support team at dssupport@leviton.com . Please include the type and model of mobile devices you are using and the model number of the Decora Smart device.

What are the best home features for cold climates?

The best home features for cold climates include a simple gable roof to shed snow, covered entrances for protection, airtight triple-pane windows to prevent heat loss, and radiant heating systems. These features work together to maintain interior warmth, reduce energy bills by up to 25%, and ensure structural safety during harsh winters.

SCW-120 | Support | WarmlyYours Canada

Q: Does the 'My Leviton' app's schedule override the Leviton WiFi switch when I manually turn it on/off?

Yes — when the My Leviton app has a scheduled event programmed, that event will override any manual change at the time it fires. For example: if the app is set to turn the towel warmer off at 9:00 AM and you manually turn it on at 8:50 AM, the app will switch it back off at 9:00 AM as programmed. To keep your manual override in effect: Disable or delete the scheduled event in the My Leviton app before making your manual change, or Use the switch's physical button after the scheduled event fires — the switch will stay in the manually set state until the next scheduled event triggers. This behavior applies to the Hardwired WiFi Switch (GK16-30090-0003) used with the My Leviton app.

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Support Questions

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Why a GFEP (GEFP, RCCB, or heat trace circuit breaker) and not a GFCI breaker for WarmlyYours outdoor deicing and snow melting systems?

GFEP is the National Electric Code (NEC) required protection for fixed outdoor deicing and snow-melting equipment, which may be accomplished by using circuit breakers equipped with ground-fault equipment protection (GFEP) of 30 mA. It is important to understand that this required equipment protection is NOT the same as a 5 mA GFCI used for personal protection.

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When do I need a relay panel?

When the design requirement's amp draw exceeds the selected controller's capacity.

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Does the 'My Leviton' app's schedule override the Leviton WiFi switch when I manually turn it on/off?

Yes — when the My Leviton app has a scheduled event programmed, that event will override any manual change at the time it fires.

For example: if the app is set to turn the towel warmer off at 9:00 AM and you manually turn it on at 8:50 AM, the app will switch it back off at 9:00 AM as programmed.

To keep your manual override in effect:

Disable or delete the scheduled event in the My Leviton app before making your manual change, or
Use the switch's physical button after the scheduled event fires — the switch will stay in the manually set state until the next scheduled event triggers.

This behavior applies to the Hardwired WiFi Switch (GK16-30090-0003) used with the My Leviton app.

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What is the wire spacing for snow melt cables?

The most common spacing for snow melting systems is 3“ from wire to wire. However, we can design snow melting systems based on your local climate and weather expectations that might have different cable spacings to ensure the most efficient system possible. We also offer snow melting mats with 3" and 4" spacing.

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Where does the aerial sensor get placed?

In an area free of obstruction and able to detect rain or snow, yet low enough so that it is easily accessible if service is needed. Atop a fence post or on an 'L' bracket on the side of a building are common.

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How should the Cold Lead be installed for patios/walkways/driveways?

The electrician must route the cold lead(s) through rigid metal conduit(s) or other approved means, to get back to an accessible weatherproof junction box(s). Care must be taken by the electrician so that none of the heated section of Cable enters the conduit(s).

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Why isn't a temperature sensor required for all installations?

It depends on how the system is intended to operate. If the expectation is manual operation (ex. WiFi or Timer Control), then no sensors are required. If the expectation is automatic operation, then the system will require at least one snow sensor.

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At what depth do the snow melt cables need to be?

Minimum is 1.5“ and Maximum is 2.5“

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What is GFEP?

Ground fault equipment protection (GFEP) is intended to provide protection for equipment against damaging line-to-ground currents by disconnecting all ungrounded conductors of the faulted circuit.

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Does the mat require a sensor to go with it?

No, a sensor is not required with the snow melt system. However, certain automatic controllers require a temperature/moisture sensor to sense atmospheric conditions and may also require an in-slab, high temperature limit sensor to be installed (notably, asphalt installations).

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Decora Smart Wi-Fi device will not connect to the Wi-Fi Network or Leviton Cloud

If you are able to connect the mobile device to the Decora Smart Wi-Fi device (Step 2), but are getting a message that the device is unable to enroll please follow these troubleshooting step:

Factory Reset the Decora Smart Wi-Fi device by pressing and holding the top paddle for 15 seconds (until the LED begins to flash red and amber), then release the paddle. After a few seconds, the LED will flash green.
Pay attention to the Status LED during the remainder of the enrollment process. When you get to the step where the device joins your Wi-Fi network (right after you select your Wi-Fi network and enter the password):
What is the color and state on the LED?
- If the LED is solid green (or turns completely off if the light it is controlling is on), then please follow the steps in the following article: Device Does not Connect to Cloud
- If the LED flashes amber, please make sure that you are entering the correct password for the Wi-Fi network that you are connecting to. The password is case specific. You can press the eye icon to see the text to make sure you entered it correctly.
If your router has 2.4GHz and 5GHz Wi-Fi signals on the same Network Name (SSID), try splitting these out into different Wi-Fi network names.
- For example, if you router uses the same Network Name (SSID) for both the 2.4GHz and 5GHz band. The modification is to change the name of the 5GHz SSID, so that it has a different name from the name of the 2.4GHz SSID. The recommendation is to add the number 5 to then end of the existing name. For example, if the name of your SSID is Jones, then change the name of the 5GHz SSID to Jones5.
Attempt to enroll the device again after following all of these steps to see if you are successful. If not, please contact our technical support team at dssupport@leviton.com. Please include the type model number of the Decora Smart device and the brand and model of your wireless router.
For additional help, you can call our support department.