Display shows E5; compressor may not start or may shut down shortly after starting; fan may still run.

Safety warning: Unplug the unit. High voltage and stored energy in capacitors can be dangerous. If you are not comfortable working around electrical components, contact a professional.

Basic checks:

• Ventilation: Ensure the rear of the unit (condenser side) has adequate clearance and is not blocked. Overheating can cause overcurrent trips.
• Clean condenser coil: With power disconnected, remove the rear cover and gently brush or vacuum dust and debris from the condenser fins. Do not crush the fins.
• Inspect fan operation: Confirm the condenser fan spins freely by hand and runs when the unit is powered. A stalled fan can cause high compressor current.

Advanced checks (for experienced DIYers):

• Check start capacitor: Locate the compressor start/run capacitor near the compressor. Discharge it safely by bridging the terminals with a resistor or insulated screwdriver (following proper procedures). Inspect for bulging or leakage. Replace with a matching Hotpoint compressor capacitor if suspect.
• Compressor test: With power off and wires removed from the compressor terminals, measure resistance between terminals (C-R, C-S, R-S). Very low resistance or continuity to ground indicates a shorted compressor, which requires professional replacement.

When to stop: If E5 persists after cleaning, ensuring fan operation, and replacing a suspect capacitor, the compressor or control board may be failing. These repairs are typically not DIY-friendly and should be handled by a licensed technician.