HVAC Quick Guide

Quick solutions for commonly asked questions

VIDEO

How to use your TOSOT mini split remote

Learn how to effortlessly operate your TOSOT mini split system with this handy remote control. This video guides you through the essential features and functions, ensuring you get the most out of your heating and cooling experience.

VIDEO

How to connect your TOSOT mini split to your phone

Learn how to effortlessly connect your TOSOT mini split air conditioner to your smartphone. This video guides you through the setup process, ensuring you can control your home's climate with just a few taps on your device.

TROUBLESHOOTING

Error Codes & Troubleshooting

When the system malfunctions, an error code will appear on the indoor unit. Use the table below to identify the code and follow the recommended troubleshooting steps. For codes not listed, please contact a qualified HVAC professional.

Error Code(s)
Description / Action
U8 / H6 / H3 / E1 / E5 / E6 / E8
Restart the unit. If the issue persists, seek assistance from a certified HVAC technician.
C5 / F0 / F1 / F2
Contact professional technicians.
E2 / E9
Not error codes; these are status codes indicating operational condition.
TROUBLESHOOTING

Common Issues & Solutions

Common issues are connectivity problems, software bugs, and user errors. Solutions typically include restarting the device, updating software, or checking settings.

The fan runs even when not heating or cooling.

To ensure steady temperatures and reduce energy loss caused by frequent starts and stops, the fan maintains a continuous flow of air past the sensor.

How to change the temperature from Celsius to Fahrenheit?

To ensure steady temperatures and reduce energy loss caused by frequent starts and stops, the fan maintains a continuous flow of air past the sensor.

Indoor unit shows an E7 error code.

To ensure steady temperatures and reduce energy loss caused by frequent starts and stops, the fan maintains a continuous flow of air past the sensor.

No air coming from the indoor unit

To ensure steady temperatures and reduce energy loss caused by frequent starts and stops, the fan maintains a continuous flow of air past the sensor.

Mist is coming from indoor unit's air outlet

To ensure steady temperatures and reduce energy loss caused by frequent starts and stops, the fan maintains a continuous flow of air past the sensor.

Can't adjust the "set" temperature

To ensure steady temperatures and reduce energy loss caused by frequent starts and stops, the fan maintains a continuous flow of air past the sensor.

Hearing a water flowing noise

To ensure steady temperatures and reduce energy loss caused by frequent starts and stops, the fan maintains a continuous flow of air past the sensor.

Air conditioner operates abnormally

To ensure steady temperatures and reduce energy loss caused by frequent starts and stops, the fan maintains a continuous flow of air past the sensor.

What temperature is displayed on the remote controller?

To ensure steady temperatures and reduce energy loss caused by frequent starts and stops, the fan maintains a continuous flow of air past the sensor.

How can I control the unit without using the remote?

To ensure steady temperatures and reduce energy loss caused by frequent starts and stops, the fan maintains a continuous flow of air past the sensor.

The indoor unit isn't receiving the remote signal.

To ensure steady temperatures and reduce energy loss caused by frequent starts and stops, the fan maintains a continuous flow of air past the sensor.

Air Conditioner isn't coming on

To ensure steady temperatures and reduce energy loss caused by frequent starts and stops, the fan maintains a continuous flow of air past the sensor.

Cooling/heating is insufficient

To ensure steady temperatures and reduce energy loss caused by frequent starts and stops, the fan maintains a continuous flow of air past the sensor.

Strange Smell

To ensure steady temperatures and reduce energy loss caused by frequent starts and stops, the fan maintains a continuous flow of air past the sensor.

Hearing a cracking noise

To ensure steady temperatures and reduce energy loss caused by frequent starts and stops, the fan maintains a continuous flow of air past the sensor.

Air guide louver can't be closed normally

To ensure steady temperatures and reduce energy loss caused by frequent starts and stops, the fan maintains a continuous flow of air past the sensor.

CARING

Caring for Your TOSOT Mini Splits

Keep your system running efficiently with these simple maintenance steps.

1
Clean the Air Filter Monthly

Remove the filter, rinse or vacuum it—avoid scrubbing or using a dishwasher. Prevents dirt buildup and saves energy.

2
Use the Auto-Clean Feature

Press MODE + FAN for 5 seconds to activate. The display shows CL. Unit will heat/cool automatically—minor sounds are normal.

3
Schedule Professional Service

Have a certified HVAC technician inspect your unit every six months for optimal performance and longevity.