Honeywell MN14CCSBB 14,000 BTU Portable Air Conditioner with Dehumidifier and Remote Control E2 Error Fix: Evaporator Temperature Sensor Fault

Error code E2 on the Honeywell MN14CCSBB 14,000 BTU Portable Air Conditioner with Dehumidifier and Remote Control means: Evaporator Temperature Sensor Fault. The evaporator coil temperature sensor has malfunctioned or is disconnected — the unit cannot monitor the evaporator for freezing and may ice up or not cool properly; unplug the unit, let any ice on the coils melt completely (may take several hours), then restart; if E2 returns, the evaporator thermistor needs replacement

The most successful fix is "Replace Evaporator Temperature Sensor Thermistor" (hard difficulty, ~75 minutes). Estimated DIY cost: $15-$35. HomeMD has 2 community-ranked fixes for this error.

This error is rated medium severity. It should be addressed soon, but your appliance may still function in a limited capacity.

Yes — the top-ranked community fix ("Replace Evaporator Temperature Sensor Thermistor") is rated hard difficulty and takes about 75 minutes. Tools needed: T20 Torx screwdriver, Multimeter.

DIY cost: $15-$35. Professional repair typically costs $160-$220. Many homeowners save money by trying the top-ranked community fix first.

The Honeywell MN14CCSBB 14,000 BTU Portable Air Conditioner with Dehumidifier and Remote Control has 8 other known error codes, including: CF (Clean Filter Reminder), E1 (Room Temperature Sensor Fault), E3 (Condenser Temperature Sensor Fault), E4 (Water Tank Full — Unit Stopped), E5 (System Defect — Contact Service), and 3 more.

Error code E2 also appears on 1 other Honeywell model: MO08CESWK 8,000 BTU Compact Portable Air Conditioner. The fix may vary by model, so check each model's specific page for tailored repair steps.