Rotom HVAC Dual Run Capacitor 36-15-5-3744, Fixes Compressor or Fan Motor Starting Problems

Is This the Right Part?

✅ Cross Reference Information

Common Symptoms

• Compressor hums but does not start, or starts very slowly
• Condenser fan motor does not start or runs intermittently
• Unit trips a breaker or overload protector on startup
• Capacitor case is visibly swollen, bulging or leaking
• System runs but with reduced cooling or heating performance

Check Before Replacing

• Test the capacitor with a capacitance meter — compare both HERM and FAN readings against the tolerance printed on the original label before condemning it.
• Confirm the original is a dual-section run capacitor rated exactly 15/5 µF — do not substitute a different µF rating even if the capacitor fits physically.
• Verify the original voltage rating — a 440V replacement is acceptable for a 370V application, but a 370V-only capacitor must not replace a 440V-rated application.
• Confirm the oval case dimensions (2.80 × 1.77 × 2.56 in) and three-terminal arrangement (C, FAN, HERM) match the original mounting space and wiring.

Part Details

Verified Compatible Models

Fitment reminder: A verified model list has not been added yet. Match the complete appliance model number before ordering.