ROAMiQ 12V Motor Relay V2: wiring guide and FAQ

What this device does

The ROAMiQ 12V Motor Relay V2 is a small controller (the carbon-look box in your kit) that drives a 12V motor in both directions, like an RV bed lift or an awning. When you press a momentary switch, it ramps the motor up smoothly in the right direction and brings it to a gentle stop when you let go. It also watches the motor current so nothing gets pushed past its limits. One controller gives you full control of your motor.

Using the lever terminals

Every connection on the V2 is a push-lever terminal, so you don't need tools or crimps.

1. Strip about 11 mm (7/16") of insulation from the wire.
2. Lift the orange lever all the way up.
3. Push the bare wire fully into the opening.
4. Snap the lever back down, then give the wire a light tug to confirm it's held.

The terminals and where each one goes

Set the controller down with the ROAMiQ logo facing away from you, as in the diagram. The three terminal blocks then sit on the front, left and right edges.

Power (front edge, 2 positions)

• "12V" (left position) goes to a fused +12V source. Your RV house battery through a fuse block is perfect. This terminal powers both the controller and the motor.
• "GND" (right position) goes to chassis ground or the battery negative terminal.

The controller has built-in reverse-polarity protection. If you swap 12V and GND by mistake, it simply won't power up. Nothing is damaged, and it works once you correct the wiring.

Motor (left edge, 2 positions)

• "Motor +" (rear position) and "Motor -" (front position) go to the two terminals on your motor.
• If the motor runs the wrong direction the first time you test it, don't worry. Swap "Motor +" and "Motor -" to reverse it. Nothing is harmed.

Switch inputs (right edge, 3 positions)

The 3-position block is how you tell the motor which way to move. From rear to front:

The controller is active-low. That means you trigger a direction by briefly connecting one of the control inputs to "Switch Ground". No power runs through the switch; it only completes a small circuit to ground. That's why thin 18–22 AWG wire is fine here.

For a simple momentary rocker switch, (ON)-OFF-(ON):

Fail-safe behavior

The switch works by connecting to ground instead of sending power, so a disconnected or broken switch wire simply does nothing. A loose or damaged control wire won't make the motor move on its own. If a switch wire comes off, the worst case is that one direction stops responding until you reconnect it.

When the motor is stopped, the controller holds it in a braked state, which helps keep a bed lift from drifting under load.

Built-in protection

The controller watches the motor current and stops automatically to protect your equipment in three situations:

• Overcurrent (jam): if something blocks the motor and current spikes, the controller cuts power immediately.
• Stall: if the motor strains against a load for too long, the controller stops it.
• Runtime timeout: if the motor runs longer than the set time limit, the controller shuts it off.

There is also a hardware current limit inside the motor driver that works as a second layer of protection. All of these ship with sensible defaults, so most people never touch them. If you want to fine-tune the thresholds, ramp times or time limit for your specific motor, you can adjust them in the ROAMiQ app.

Troubleshooting

Nothing happens when I flip the switch.

Work through these checks in order.

1. Check your fuse on the 12V feed first. This is the most common cause. Replace a blown fuse only with one of the same rating.
2. Check the power polarity. Make sure 12V and GND are in the right front terminals. If they're swapped, the controller won't power up.
3. Check the ground. Make sure the GND wire is firmly connected to chassis ground or battery negative.
4. Check the switch wiring. Confirm the switch common goes to the middle "Switch Ground" terminal and each outer leg reaches its own control terminal. A wire that isn't fully seated under a lever is a frequent culprit, so give each one a tug.

The motor runs the wrong way.

Swap "Motor +" and "Motor -" on the left terminal block. That's all it takes to reverse direction.

The motor stops by itself.

That's the built-in protection doing its job. Check for a jam, an obstruction, or something binding the motor. Once the mechanical issue is cleared, the motor will respond normally again. If it keeps tripping without an obvious jam, the protection thresholds may need tuning in the ROAMiQ app.

Still stuck?

We are your installer on call. Reach ROAMiQ support and we will walk you through it.