Tools for people who fix their own mini splits
Start with the one you probably came for: type the code on your unit's display and get what it means, what causes it, and what you can check before calling anyone.
Tools
Mini split error code lookupPick the brand, type the code, get the fix. 48 brands.
Error codes by brandEvery brand's full code list, with which factory builds what.
Mini split sizing calculatorBTUs from room size, climate and insulation. Free, no sign-up.
Compare DIY mini split brandsWhich systems you can install yourself, and how they stack up.