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Samsung Air Conditioner E458 Error Code
Outdoor fan error on Samsung air conditioners.
SamsungAll Samsung air conditioner codes
The outdoor fan isn't reaching the right speed. Snow, ice or debris against the blade can cause it, as can a failing fan motor or control board.
Compatible models
Outdoor units serving WindFree wall units in the AR**TSF series and the AC018/AC024 MNADCH high-wall units. E475 appears only in the AC018/AC024 high-wall manual.
Also shown as
Outdoor units with two fans may show E475 for the second fan.
Difficulty
Start with the safe checks below; a worn part may need replacing.
Not sure you are reading the code right? See how to read Samsung air conditioner codes.
How to fix Samsung E458
Switch off the power
Switch off the breaker and wait for the outdoor fan to stop completely.
Clear the fan and coil
Wearing gloves, remove snow, ice, leaves and branches from around the outdoor unit and its grille. Don't push anything through the grille or remove panels.
Power back up
After about five minutes, switch the breaker back on and check that the outdoor fan starts turning.
When to call a technician
If the fan is clear and the code returns, the fan motor or outdoor board needs a technician.
Parts linked to E458
These are the parts most often behind this code. Tap one to see what it does and the signs it is failing.
Order parts by your full model number so they fit.
Step-by-step guides for this problem
- AC Blowing Warm Air? 8 Causes and What You Can Fix Yourself
Warm air from an AC is most often a wrong mode setting, clogged indoor filters, or an outdoor unit that has lost power or stopped.
- Heat Pump Not Heating? Settings, Defrost and Fixes to Try
A heat pump that seems to stop heating is often just in its defrost cycle, which Trane says usually lasts 3 to 5 minutes and can send cool air or steam out of the outdoor unit.
Frequently asked questions
Which Samsung models show the E458 code?
Outdoor units serving WindFree wall units in the AR**TSF series and the AC018/AC024 MNADCH high-wall units. E475 appears only in the AC018/AC024 high-wall manual.
Can I fix Samsung E458 myself?
Often. The first steps above are safe checks a homeowner can do. If they don't clear E458, the cause is likely a worn part that needs replacing.
Other Samsung air conditioner codes
- CFFilter cleaning reminder
- ClAuto Clean running
- dFDefrosting the outdoor unit
- E101Indoor and outdoor units aren't communicating
- E121Room temperature sensor fault
- E122 / E123Indoor coil temperature sensor fault
- E154Indoor fan error
- E162 / E163Control board memory error
- E153 / E665Drain pump or float switch problem
- E554Refrigerant leak or low refrigerant
- E422Refrigerant flow blocked
- E416Compressor running too hot
- E221 / E231 / E251Outdoor temperature sensor fault
- E461 / E464Compressor or inverter fault
- E466Power supply voltage problem
- E440 / E441Outside temperature beyond operating limit
Last reviewed 2026-10-19. Codes and steps can vary by model; check your owner's manual.