Rotom HVAC Capacitor HVAC Dual Run Capacitor, Round, 30/5 MFD, 370/440V 36-305R3744

Round dual-run motor capacitor rated at 30/5 µF and 370/440 VAC for HVAC compressor and condenser-fan motor circuits.

Is This the Right Part?

Common Symptoms

• Compressor or condenser fan fails to start
• Motor hums without starting
• HVAC condenser operates intermittently or does not cool
• Capacitor canister is visibly bulged, leaking, or burned

Check Before Replacing

• Compare the installed capacitor label with the required 30/5 µF and 370/440 VAC ratings before ordering.
• Have a qualified technician disconnect power and test both capacitor sections with a capacitance meter.
• Inspect the capacitor for bulging, leakage, burn marks, or damaged terminals; visual inspection alone does not confirm electrical failure.
• Check physical clearance and mounting space against the approximately 1.97-inch diameter by 4.16-inch height dimensions.

Pro Tip

Part Details

Key Features

• Dual-run capacitor
• 30/5 µF capacitance
• 370/440 VAC dual-voltage rating
• Round metal-can construction
• Approximately 1.97-inch diameter
• Approximately 4.16-inch height / 105 mm height equivalent reported by catalog sources

Installation Notes

• Disconnect electrical power before servicing the HVAC equipment; capacitor terminals may retain a charge.
• Verify terminal markings and wiring against the original capacitor or equipment documentation before reconnecting.
• Confirm that the replacement fits the existing mounting arrangement and cabinet clearance.
• Use a qualified HVAC technician for testing and replacement where required by local rules or equipment procedures.