Pink or Purple Tint on Kuna Camera Video? Here's How to Fix It
If your Kuna camera displays a pink or purple tint in live view or recorded footage, it’s likely due to a malfunctioning IR cut filter, sensor misalignment, or environmental interference. This guide covers immediate fixes and in-depth solutions tailored to Kuna devices. Begin with quick checks, then proceed to advanced diagnostics if needed.
Quick Fixes to Resolve Pink/Purple Tint
Power Cycle Your Camera
Unplug your Kuna camera’s power adapter (or remove batteries if wireless) for 30 seconds, then reconnect. This resets the camera’s internal state and may resolve temporary sensor glitches. For wired models, ensure the transformer at the junction box is securely connected.
Restart the Kuna App
Close the Kuna App completely, then reopen it. This clears any caching issues that might interfere with video processing. If the tint persists, log out of your account and back in to refresh the connection.
Check LED Indicators
Look for unusual LED behavior on your Kuna camera. A steady red light may indicate a hardware fault, while flashing blue suggests Wi-Fi reconnection attempts. If the LED is unresponsive, proceed to the advanced troubleshooting section.
Step-by-Step Troubleshooting
Use the Kuna App's Device Health Tool
Open the Kuna App and navigate to Device Health → Network Connection Check. This tool scans for signal stability and IR filter status. If the app reports a stuck IR filter, follow the on-screen instructions to manually reset it. For wired models, ensure the camera is connected to the 2.4GHz Wi-Fi band (not 5GHz) via the Wi-Fi Settings menu.
Verify Wi-Fi Band and Signal Strength
Kuna cameras require 2.4GHz Wi-Fi (802.11b/g/n) for optimal performance. In the Kuna App, go to Device Settings → Wi-Fi Band and confirm the camera is connected to the correct network. If signal strength is weak (RSSI below -70dBm), move the router closer or use a Wi-Fi extender. For UK homes with dense construction (e.g. solid brick walls), consider a hardwired connection for reliability.
Update Firmware via the Kuna App
Outdated firmware can cause sensor misbehavior. In the Kuna App, go to Device Settings → Firmware Update. If an update is available, follow the prompts to install it. Ensure the camera remains connected to power during the update process to avoid corruption.
Reset the Camera Using Model-Specific Instructions
If the tint persists, perform a factory reset:
- Kuna DualCam Video Doorbell: Press and hold the reset button on the back of the device (accessible after removing it from the mount) for 15 seconds until the LED flashes rapidly.
- Kuna Camera Floodlight: Press and hold the reset button on the underside of the floodlight housing for 15 seconds until the LED flashes to confirm the reset. After resetting, re-pair the camera via the Kuna App and ensure it reconnects to 2.4GHz Wi-Fi.
Run the Kuna Diagnostic Tool
If the issue remains unresolved, use the Kuna Diagnostic Tool in the App to generate logs. Navigate to Device Health → Diagnostic Logs and send the file to Kuna support. This data helps identify hardware faults or software conflicts.
Advanced Diagnostics and Support
Factory Reset and Re-Pairing
If the tint persists after a reset, unpair the camera from the Kuna App by going to Device Settings → Unpair Camera. Remove the camera from its mounting location and re-pair it using the App. Ensure the camera is within 10 metres of the router during re-pairing to avoid connectivity issues.
Contact Kuna Support
If all steps fail, visit https://help.getkuna.com and submit a support ticket. Include the diagnostic logs and a detailed description of the tint issue. Kuna’s support team will guide you on hardware replacement or repair options under the Consumer Rights Act 2015.
Understanding the Root Cause
A pink or purple tint typically stems from a stuck IR cut filter, which fails to switch between day and night modes. This can occur due to sensor degradation, exposure to extreme weather, or firmware bugs. In the UK, dense construction (e.g. solid brick walls) and low-E windows can exacerbate signal issues, indirectly affecting sensor performance. Ensure your camera is installed in a location with minimal obstructions for optimal operation.
Prevention and Long-Term Care
Regular Maintenance Checks
Periodically check the Device Health section in the Kuna App to monitor signal strength and IR filter status. For wired models, inspect the transformer at the junction box to ensure it supplies 16-24V AC. Replace the transformer if voltage is outside this range.
Avoid Extreme Environments
Install your Kuna camera in a location protected from extreme heat, cold, or moisture. Prolonged exposure to harsh weather can degrade sensors and cause tinting. For UK homes with high humidity (70%+), consider using a weatherproof enclosure.
Full Disclosure: we built scOS to address exactly this
The frustration of cameras displaying distorted footage due to stuck IR filters or sensor misalignment. scOS uses permanently powered cameras connected via ethernet, eliminating reliance on wireless signals and reducing the risk of tinting.
When to Replace Your Kuna Camera
Most Kuna cameras last 5-8 years with proper care. If the tint persists after all troubleshooting steps, it may indicate hardware failure. Under the Consumer Rights Act 2015, UK consumers have up to 6 years to claim a repair or replacement for faulty goods. For battery-powered models, replace the device if the battery holds less than 20% charge after 300-500 cycles.