Lennox mini split systems are a great way to provide compact, yet effective temperature control for your home. Some models are built for air conditioning only, while heat pump models can deliver both heating and cooling.
But no home comfort system is flawless. There’s always a chance your mini split will malfunction. To find out what is malfunctioning, you should locate where the mini split error codes are displayed. Knowing what these codes refer to can help you kickstart mini split repair, especially if professional help is necessary.
What any code means will ultimately rely on the specific model of your mini split system. You can consult your manual for a guide for what each code means. You can also contact the HVAC pros at Solar Air Inc. . Our technicians are trained to recognize these codes in order to provide prompt mini split repair in Fort Lauderdale. Give us a call at 954-320-7398 to schedule an appointment.
Common Lennox Mini Split Error Codes
While error codes may differ from model to model, there are some codes you’ll be more likely to see. To learn what your error code may mean, consider the following:
- Is your model a mini split air conditioner or a mini split heat pump?
- Are there clear signs of what malfunctioned? A loud noise coming from an important component, for example.
Here are a few of the more common error codes for Lennox mini splits.
E1 – Indoor / Outdoor Unit Communication
In general, an E1 error code means that communication between the mini split system’s indoor and outdoor units has been impeded. It might be experiencing intermittent connection issues or have failed entirely. When the indoor and outdoor units can’t communicate with one another, it will be unable to effectively balance indoor temperatures.
E5 – Voltage Protection or Temperature Sensor Error
If you own a mini split heat pump, an E5 error can stand for a problem with the system’s voltage. A repair technician from Solar Air Inc. may refer to it as overcurrent protection. Both unusually high or low voltage can create this error code.
For mini split air conditioners, this code can also indicate voltage issues. In other cases, it’s alerting you to a circuit problem with the outdoor temperature sensor.
E6 – Indoor / Outdoor Unit Communication
An E6 error code can also refer to a communication problem between the two units, similar to an E1 code. It might also be an issue with one of the temperature sensors.
P4 – Compressor Drive Error / High Temperature
A P4 error code will most times be concerned with your mini splits compressor system, found within the outdoor unit. When the compressor drive is malfunctioning, the most likely culprit is excessively high temperatures. A high temperature at the discharge line can also trigger a P4 code.
P6 – Compressor Switch Open or Drive Board Failure
Your mini split system will have computer boards that ensure the indoor and outdoor units can communicate with one another. If the drive board is damaged, a P6 error code is common.
When temperatures rise above safe levels, a safety switch will protect the electrical components of your mini split system, including any components that control the outdoor compressor. If this switch is open, the P6 code may appear. You may also find the P6 code if the compressor is struggling with high or low pressure issues.
Consult the Manual for Your Specific Model
Keep in mind that in general, error codes are specific to each model of a Lennox mini split system. Your manual will have a guide for these error codes and what they can mean. But because many of these codes start with electrical problems, professional experience is often necessary.
Call Solar Air Inc. for Mini Split Repair
Solar Air Inc. can deliver fast and affordable ductless mini split repair. Whether you own a mini split AC system or a mini split heat pump, our technicians can quickly diagnose your specific problem.
For some problems, repairs might not be worth it. But that doesn’t mean the mini split replacement process has to be stressful. We can provide equally effective mini split installation in Fort Lauderdale, bringing your new system online with little to no comfort disruption.
To schedule an appointment, give us a call at 954-320-7398 today.