Written by
Adrian Soto Appliance Repair Content SpecialistPublished September 5, 2026Updated October 20, 2026
Error codeE45 Cooling error
ApplianceMicrowave
Quick answer
E45 on a Samsung microwave is the cooling error message. The listed owner step is a power reset.
Model compatibility: Samsung reuses codes across series and model years, so E45 Cooling error may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
Cooling error.
Once E-45 comes up on the control panel of a Samsung microwave, the microwave is flagging the cooling error. You will find it in the current Samsung microwave error list.
Steps to try first
Unplug the microwave from the wall or flip off the circuit breaker. Should the unit got wet, let it dry out; if it is dry, wait 60 seconds. After that reconnect the supply and check if E-45 reappears.
Should E-45 return, request service. Work inside the cabinet is for a technician.
For Samsung microwave repair in Los Angeles, call (310) 896-4231. Keep the E-45 code, the model number and what you already tried ready when you call. More on Samsung microwave repair for details.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your Samsung appliance?
Book a specialist visit for a clear estimate and approval before any repair.
