CARTA Classic — Error Codes

The CARTA Classic uses LED flash sequences to communicate device errors. Below are all four error codes with causes and troubleshooting steps.

2x Yellow — Short Circuit

Two yellow flashes mean the CARTA Classic detected an atomizer short circuit. The measured resistance was below the minimum threshold — a safety check that prevents heating to protect the battery and internal components.

• Water from the glass attachment got into the atomizer port
• Atomizer cup is flooded with excess concentrate
• Everlast atomizer coil is damaged or bridged
• Residue buildup creating a conductive path between coil contacts
• Atomizer not fully seated — incorrect contact

1. 1
   Power off and remove the atomizer

   Press the power button 5 times to power off. Let the device cool at least 2 minutes. Unscrew the atomizer counterclockwise. Inspect for visible flooding, cracks in ceramic, or coil damage.

2. 2
   Drain and dry if flooded

   Place the atomizer upside down on a paper towel for 10 minutes to drain pooled liquid. Pat dry with a clean cloth.

3. 3
   Clean the atomizer port

   Dip a cotton swab in 90%+ isopropyl and gently clean inside the port on the device base. Allow at least 60 seconds to dry.

4. 4
   Reseat and test

   Screw the atomizer back in clockwise until snug. Power on and run a session. If 2x yellow is gone, you're done.

5. 5
   Test with a known-good atomizer

   If the error persists, try a different atomizer. If it clears, the original coil is damaged and needs replacement.

6. 6
   Check the glass water level

   Ensure water in the glass is filled only to the minimum level — overfilling is a common cause of water entering the atomizer port.

5x Yellow — Open Circuit

Five yellow flashes indicate an open circuit — the device tried to send current through the atomizer but found no path. The atomizer coil is either disconnected, burned out, or not seated properly. This is the opposite of the 2x yellow short circuit error.

• Everlast or Intelli-Core atomizer coil has burned out
• Atomizer is not fully seated in the base (contact pins not touching)
• Oxidized or corroded contact pins on the atomizer or device base
• Atomizer screwed in too loosely
• Thick reclaim buildup on the contact pin acting as an insulator

1. 1
   Power off and inspect the atomizer

   Press the power button 5 times to power off. Unscrew the atomizer counterclockwise. Inspect the bottom contact pin — it should be centered and slightly raised. If flat, corroded (dark/green tinge), or blocked, that's likely the cause.

2. 2
   Clean the contact points

   Use a cotton swab with 90%+ isopropyl to clean the atomizer contact pin and inside the port on the device base. Allow 60 seconds to dry fully.

3. 3
   Reseat firmly

   Screw the atomizer back in clockwise, firmer than usual (but do not force it). Contact pins need good pressure for proper electrical contact. Power on and test.

4. 4
   Try a replacement atomizer

   If the error persists after cleaning, install a new Everlast or Intelli-Core atomizer. If the error clears, the original coil has burned out. Atomizer replacement is normal maintenance.

7x Red — Thermal Protection (Overheat)

Seven red flashes mean the CARTA Classic's thermal protection circuit has activated. The internal temperature sensor detected unsafe heat levels and shut down to prevent damage to the battery or internal components.

• Running multiple back-to-back sessions without a cool-down period
• Using the highest heat setting for extended sessions or repeat cycles
• Charging while using the device simultaneously
• Operating in a very warm environment (direct sunlight, hot surface)
• Ventilation restricted by placing the device on a soft surface during sessions

1. 1
   Power off immediately

   Press the power button 5 times to power off. Do not attempt to restart while the device is still warm.

2. 2
   Let it cool completely

   Place the device on a flat, hard, non-insulating surface (wood or tile). Allow 5–10 minutes at room temperature. Do not refrigerate or blow cold air — thermal shock can damage internal components.

3. 3
   Check the environment

   Make sure the device is not in direct sunlight or on a heat source. Good ventilation during and between sessions is important.

4. 4
   Power on after cooling

   Press the power button 5 times to power on. The 7x red flash should no longer appear. Run a session at a lower temperature to verify normal operation.

5. 5
   Adjust session habits

   If this error recurs frequently, build in a 2–3 minute cooling period between sessions. Reserve the highest temperature settings for occasional use.

6. 6
   Check for firmware updates

   Thermal management is sometimes improved in firmware updates. Connect to the V Browser app (www.focusv.app) and install any pending updates.

8x White — Battery / Power Issue

Eight white flashes indicate a battery or power delivery issue. This can be caused by insufficient battery charge, misaligned firing pins, interrupted connections, or an atomizer short circuit.

• Battery level too low to fire
• Firing pins not aligned or connections interrupted
• Atomizer short circuit preventing power delivery
• Excess concentrate shorting the atomizer connections

1. 1
   Check battery level

   Click the power button 3 times to check battery. If you see 1–2 LEDs, plug in and charge until the batteries are full, then test again.

2. 2
   Clean the connections

   Remove the atomizer and use an isopropyl wipe to clean the base and atomizer connection points. If the atomizer is stuck and won't turn, pour isopropyl into the base airflow port and atomizer chamber, wait 30–45 seconds for debris to loosen, then remove.

3. 3
   Reinstall the atomizer correctly

   Thread the atomizer back in carefully, ensuring threads connect properly and the atomizer sits flush — not crooked.

4. 4
   Soak atomizer if still showing error

   If the error continues, the atomizer may have been shorted by excess wax. Submerge the atomizer in isopropyl to clear the connections, then reinstall.

5. 5
   Replace the atomizer

   If none of the above resolves the issue, a new atomizer is needed. If within the 6-month warranty, register at focusv.com/apps/product-registration and submit a request at portal.focusv.com.