> ## Documentation Index > Fetch the complete documentation index at: https://help.vori.com/llms.txt > Use this file to discover all available pages before exploring further. # Troubleshoot Cash Drawer Issues on the POS > Follow steps to resolve connection or mechanical issues preventing the drawer from opening This article guides you through fixing a cash drawer that will not open when triggered by the POS. **✏️ Note:** The cash drawer connects to the POS through the receipt printer. If the receipt printer is off or disconnected, the drawer cannot open. ### Test for a Click Sound When you trigger the **Open Cash Drawer** command, the drawer should make a distinct "click" sound. This sound confirms the POS is communicating with the drawer. **Firmly push the drawer back into its enclosure** before starting. 1. On the main cashier screen, tap the **\$** icon in the bottom right corner to open the **Till Details** window. 2. Tap **Open Cash Drawer**. 3. Listen closely for a click sound. You can repeat this step if you are unsure. Proceed to the section below that matches your result. *** ### No Click Sound: Troubleshoot Connection Issues If the drawer is silent, the POS is not communicating with the hardware. Follow these steps to restore the connection. #### 1. Check Power and UPS Status The cash drawer relies on the receipt printer, which is powered by a UPS (Uninterruptible Power Supply). You must confirm both devices have power. **Check the Receipt Printer** * Verify the status LED on the top left of the printer is lit. * If unlit, flip the power switch on the front left to the **On** position. * If the switch is **On** but the LED is unlit, ensure the power cable is securely inserted on both ends. **Check the UPS (Battery Backup)** * **Confirm the UPS is on.** Ensure the LED indicator on the UPS unit is lit. * **Check the UPS LED behavior:** * **Solid Light:** The UPS functions normally. * **Flashing Light:** The power source is offline, and the UPS is in battery backup mode. Troubleshoot the store's electricity (e.g., check the wall outlet or circuit breaker). **Test the Drawer** * Attempt to open the cash drawer through the POS again. **✏️ Note:** If the printer and UPS are powered on but the drawer won't open, proceed to the next step. #### 2. Restart the POS App 1. On the main cashier screen, tap the **gear icon** in the bottom right corner. 2. Select **Restart App** in the System Status window. 3. Log back into the POS app. 4. Attempt to open the cash drawer to test if the issue is resolved. **✏️ Note:** If restarting does not fix the issue, proceed to the next step. #### 3. Verify Cable Connections Check the back of the receipt printer to ensure the cables are plugged into the correct ports. **Important:** The cash drawer cable is small enough to insert into the larger Ethernet (LAN) port, but this is the wrong connection. * **Cash Drawer Port (RJ12):** This is the **smaller, 6-pin port** (often black). The cash drawer cable **must** be plugged in here. * **LAN Port (Ethernet):** This is the **larger, 8-pin port**. This should remain **empty** for this setup. Moving from left to right on the back of the printer, confirm the connections: * **USB:** Empty. * **Serial Port:** Plugged in (Connects to the POS). * **LAN Port:** Empty. * **Cash Drawer:** Plugged in (Connects to the Cash Drawer). * **Power:** Plugged in. \_ \_ Reinsert any loose or incorrectly placed cables. Attempt to open the drawer again. #### 4. Verify Peripheral Settings On the main cashier screen, locate the **Date & Time** display at the bottom. 1. Quickly tap the Date 3 times to open the peripheral settings. (A hidden peripheral settings pop up window should appear.) 2. Tap the **Receipt Printer Port** dropdown menu. 3. Select the port path that follows this format: /dev/cu.usbserial-######## 1. The alphanumeric string ######## is unique to every POS lane (e.g., usbserial-AB1234). Select the one available in your list. 4. **Tap **X** to exit, then **Restart the POS App** (see instructions above).** 5. Log back in and test the drawer. **✏️ Note:** If the drawer still does not open, the hardware or cable may be damaged. Contact Vori Support for further assistance. *** ### Click Sound: Troubleshoot Mechanical Issues If the drawer clicks, it is receiving a signal but is physically stuck. #### 1. Check the Lock Position Inspect the lock on the front of the drawer. * **Locked (Vertical):** The drawer is locked and requires the key to open. * **Unlocked (Horizontal):** The drawer is ready to open electronically. *(Insert Example diagram of lock positions)* ** If the lock is **Vertical**, insert the key and turn it counterclockwise to the **Horizontal** position. Test the drawer via the POS. #### 2. Manually Open and Reset 1. Insert the key into the front lock. 2. Rotate the key counterclockwise to the **Manual Open** position until the drawer pops open. 3. Push the drawer back in and return the lock to the **Horizontal** position. 4. Attempt to open the drawer via the POS to test the resolution. #### 3. Check for Obstructions Remove the till and check for bills, coins, or debris inside the enclosure that may be jamming the mechanism. **✏️ Note:** If the drawer is unlocked and free of obstructions but still fails to open, contact Vori support for next steps. ## Related topics - [Troubleshoot Network Connectivity Issues with the POS](/hardware-and-peripherals/cashier-screen-and-shopper-display/troubleshoot-network-connectivity-issues-with-the-pos.md) - [Troubleshoot Shopper Display Communication Issues](/hardware-and-integrations/cashier-screen-and-shopper-display/troubleshoot-shopper-display-communication-issues.md) - [Vori Onboarding Guide](/getting-started-with-vori/meet-vori/vori-onboarding-guide.md)