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<p>If the indoor unit displays the F1, F2, or F4 error code, it means the temperature sensor is malfunctioning. Please try to remove the unit from power for a few minutes. Plug the unit back in to determine if the malfunction code is still present.&#xA0;Please contact us via&#xA0;<a href="mailto:support@tosotdirect.com" id="isPasted" style=" text-decoration: none !important;">support@tosotdirect.com</a> if the error code is still present. &#xA0;</p>

If the indoor unit displays the F1, F2, or F4 error code, it means the temperature sensor is malfunctioning. Please try to remove the unit from power for a few minutes. Plug the unit back in to determine if the malfunction code is still present. Plea

Error Code-F1, F2, F4 Temperature sensor malfunction

Technical Issues

Mini-Split AC Error Codes Troubleshooting

What is your shipping policy?

How do I make a return?

How do I cancel my order?

What if my package gets lost or arrives damaged?

How long is the warranty?

Price match policy

General

What is the 3-minute compressor protection?

Are the window air conditioner fits in my window?

What is the little symbol that looks like a person's head and shoulder showing on my unit?

How does the Energy-saving mode run?

How does the sleep mode work?

Do the window ACs come out of the case or are they fixed solid?

Can the window air conditioner be mounted vertically or sideway instead of horizontally?

The air conditioners cycle on and off.

Water circulating noise in the unit

Window AC

Video guide to setup the portable AC

Do I need to drain the water?

What is 3-Minute Compressor Protection?

What are the dimensions of the window panel kit?

What diameter exhaust hose does it come with? How long can it be extended? Can I get a hose extension?

Can this portable AC vent through my window screen? Do I need to remove my window screen?

Portable AC

Which voltage model should I choose? 115V or 230V?

Do you have another size line set? Can the copper line sets be cut or shortened?

Is the mini-split AC pre-charged with freon?

Are the coils coated with an anti-corrosion coat?

Why is there condensation at the indoor unit's air outlet of a split air conditioner?

Filter maintenance issues

Can the split ac connect to a regular 120V outlet ?

What is the recommended operating range?

Do you offer professional installation service?

Can I use the GFCI breakers?

Mini-Split AC General

Error Code-F0 Refrigerant leakage protection

Error Code-H3, E8 Overload protection

Error Code-E2 Anti freezing protection

Error Code-E6 Communication malfunction

Error Code-E5 Overcurrent protection

Error Code-H6 Internal fan motor does not operate

Are the 7.5-inch screws included?

Can this RV AC run on 120 V from a regular home outlet？

What is the torque for the 4 main mounting bolts?

Is this an inverter air conditioner?

Is the TOSOT RV AC equipped with a soft start?

RV AC

Error Code-F1, F2, F4 Temperature sensor malfunctionUpdated a year ago