Struggling with the A1 error when running heat on your Fujitsu mini split? Discover expert solutions and user tips to resolve this common issue effectively!

Jun 20, 2025 · It is important to know how to decode these error codes so that the possible problems with Fujitsu mini split can be diagnosed and the normal operation can be restored in a short period of …

Feb 5, 2022 · Unfortunately, there is no accepted method of re-charging a mini-split other that to recover all of the refrigerant and weigh-in the correct amount.

Example: When “Discharge thermistor error” and “Compressor thermistor error” have occurred. E r r ENTER

Feb 2, 2025 · By understanding these error codes, Fujitsu mini split users can take appropriate actions to maintain their systems effectively. The indoor air sensor has encountered an issue. To address …

Feb 8, 2024 · If you continue to run your mini-split with this error code, water will eventually spill out of the back of your unit and down your wall. Here’s what you need to do to avoid that problem.

Whenever power is interrupted, the protection circuit will prevent the unit from re-start for 3 minutes when power returns. During operation and immediately after stopping the unit, the sound of water …