When a mini split unit displays an E0 or F4 Error code, it indicates there is an EEPROM error. The main chip of the indoor or outdoor PCB cannot receive feedback from the EEPROM chip. This includes Pioneer, Ductless Aire units and more but be sure to check the error codes for your specific unit.… Read More »
If an E8 error code displays on a mini split there are a few things a DIY type person can do before calling an HVAC tech. Of course, if in doubt, always call a professional. Below are the things to check and reset an E8 error code. There can be a difference in errors depending… Read More »
An E2 error code on a mini split is a Zero Crossing Signal Detection Error. This includes Pioneer, Ductless Aire units and more but be sure to check the error codes for your unit. Possible problems include an erratic power supply or the main indoor PCB computer board. The most common way to fix an… Read More »
An E3 or F5 error code on a mini split indicates a malfunction of the fan motor speed. This can be the indoor blower motor or outside condensing fan motor. When the LED displays an E3 or F5 error code, there is a malfunction of indoor or outdoor fan motor speed. This includes Pioneer, Ductless… Read More »
Mini split units are nice to have for heating or cooling and are low-cost to operate. While they work very well, periodic maintenance is necessary to keep them operating correctly. Cleaning the inside wall unit evaporator coil is one of those requirements to keep the unit working properly. How Often Should a Mini Split Be… Read More »
If you have a Daikin mini split that is not working, the fault codes can be pulled using the remote control. A flashing green light often appears on a Daikin unit when there is a problem. The remote control Cancel button is used to pull the code from the unit. Once the code is known,… Read More »
If you have installed a mini split and it stops working after a few days it likely has a refrigerant leak. The factory flares that come with mini split units are notoriously bad and often leak. This recently happened to me that after installing a Pioneer mini split it stopped working after a week. I… Read More »
Using a vacuum pump to pump down a mini split line set is possibly the most troublesome part of DIY mini split installations. Many new installers have issues with using a vacuum pump and HVAC gauges to set the system in a vacuum. While the process is not difficult and the method I recommend using… Read More »
Pumping down an HVAC system is routinely done for many reasons, such as moving a unit, replacing the line-set, or general repairs. The Pumping down of a unit should no be confused with vacuuming a unit down which are separate. Some basic tools will be needed such as HVAC gauges, Allen key, and crescent wrench.… Read More »
Doing a DIY Mini Split install is a great way to save money for the DIY handy type of person. Even though you will save on labor-cost installing a mini split unit yourself, some tools will need to be bought. The good news is that expensive HVAC equipment is not required for small mini split… Read More »