How to Get Fault Code on DELLA Remote: A Comprehensive DIY Guide

Troubleshooting your DELLA mini-split system can be a daunting task, but understanding how to retrieve and interpret fault codes can be the key to resolving various issues. This comprehensive guide will walk you through the step-by-step process of getting the fault code on your DELLA remote, enabling you to diagnose and address common problems with your HVAC system effectively.

Resetting the Unit

The first step in retrieving the fault code on your DELLA remote is to reset the unit. This process involves turning off the power to the system and then restoring it, which can help clear any temporary glitches or errors.

  1. Locate the Breaker: Identify the circuit breaker in your main electrical panel that controls the power to your DELLA mini-split system. This is typically labeled as “Heat Pump” or “AC.”
  2. Trip the Breaker: Firmly switch the breaker to the “Off” position, effectively cutting power to the HVAC unit.
  3. Wait for 30 Seconds: Allow the system to fully power down and reset before moving on to the next step.
  4. Restore Power: Flip the breaker back to the “On” position, restoring power to the DELLA mini-split system.

Checking for Error Codes

how to get fault code on DELLA remote

After resetting the unit, you’ll need to check the remote display for any error codes that may have appeared. DELLA mini-split systems use a range of error codes, typically from E0 to EF, P0 to P9, and F0 to FF, to indicate various issues.

  1. Observe the Remote Display: Turn on the DELLA mini-split system and closely monitor the remote display for any error codes that may appear.
  2. Identify the Error Code: If an error code is present, make a note of the specific code displayed, as this will be crucial for the next step.
  3. Common Error Codes: Some of the most common error codes for DELLA mini-split systems include:
  4. E0 to EF: Communication failure, sensor malfunction, or other system errors
  5. P0 to P9: Pressure-related issues, such as refrigerant leaks or compressor problems
  6. F0 to FF: Temperature sensor malfunctions, coil freeze-ups, or other temperature-related problems

Interpreting the Fault Code

Once you have identified the error code displayed on the DELLA remote, you’ll need to refer to the manufacturer’s error code guide to understand the specific issue and potential solutions.

  1. Consult the Error Code Guide: DELLA provides a comprehensive error code guide that explains the meaning of each code and the corresponding troubleshooting steps. You can find this guide in the user manual or by contacting DELLA’s customer support.
  2. Understand the Issue: The error code guide will help you identify the underlying problem, such as a sensor malfunction, communication failure, or pressure-related issue.
  3. Determine the Appropriate Solution: Based on the error code and the information provided in the guide, you can then decide on the best course of action to resolve the issue, whether it’s a simple DIY fix or the need for professional HVAC technician assistance.

Troubleshooting the F1 Error Code

One common error code that DELLA mini-split owners may encounter is the F1 code, which indicates a temperature sensor malfunction. Here’s how you can troubleshoot and resolve this issue:

  1. Locate the Temperature Sensor: The temperature sensor is typically located near the indoor unit’s coil, often in close proximity to the air intake.
  2. Clean the Temperature Sensor: Carefully open the front cover of the indoor unit and gently wipe the temperature sensor with a clean, dry cloth to remove any dust or debris that may have accumulated.
  3. Ensure Proper Airflow: Check the indoor unit’s air filters and clean them if necessary to maintain optimal airflow and prevent the temperature sensor from becoming obstructed.
  4. Restart the Unit: After cleaning the temperature sensor and ensuring proper airflow, close the front cover and restart the DELLA mini-split system.
  5. Monitor the System: Observe the unit’s operation for a few hours to ensure the F1 error code does not reappear. If the issue persists, you may need to contact a licensed HVAC technician for further assistance.


By following the steps outlined in this comprehensive guide, you can effectively retrieve and interpret the fault code on your DELLA remote, enabling you to diagnose and address common issues with your mini-split system. Remember, while some basic troubleshooting can be done as a DIY project, it’s always best to consult a licensed HVAC technician for more complex problems or if you’re unsure about the appropriate course of action.


  1. Troubleshooting the P1 Error Code on a DELLA Mini-Split Unit
  2. Clearing the E5 Error Code on a DELLA Mini-Split
  3. Complete Guide to Common Mini-Split Error Codes
  4. DELLA Mini-Split Troubleshooting: Resetting the Unit
  5. DELLA Mini-Split Troubleshooting: Cleaning the Temperature Sensor