Little Giant 599124 ACS-3 Auxiliary In-Line Condensate Overflow Safety Switch Condensate Pump

The Little Giant 599124 ACS-3 Auxiliary In-Line Condensate Overflow Safety Switch Condensate Pump is a Little Giant condensate pump for HVAC repair and replacement work. Use it when the part number 599124 and the listed specifications match the equipment being serviced.

Low-voltage condensate overflow safety switch installs in the condensate drain pan of an air conditioning or refrigeration unit. Turns off the unit if the drain pan approaches overflow. Features: • Can install switch to activate audible and/or visual alarm • ABS housing • Polyethylene float • 125-250 VAC • Lead wires • UR / C-CSA listed

Key Specs

• Voltage: 125/250v
• Application: Plumbing
• Product Type: Condensate Pump

Expert Verdict

Reviewed by the SuperArbor Pro Desk: choose this part when the existing component label and unit documentation match 599124 and the spec set above. It is best suited for targeted HVAC service repairs where exact fitment matters more than broad universal compatibility.

FAQs

What is the Little Giant 599124 used for?

It is a condensate pump for compatible Little Giant HVAC equipment. Match the part number 599124 and the equipment service literature before ordering or installing.

Which specs should I verify before purchase?

Verify the spec set shown for this part: Voltage: 125/250v; Application: Plumbing; Product Type: Condensate Pump. The replacement should match the existing component and the unit documentation.

Does the electrical rating need to match exactly?

Yes. Confirm voltage rating 125/250v against the failed component label. Do not substitute a different rating unless the equipment manufacturer allows it.

Is this an OEM-style replacement part?

Use it as a direct replacement only when Little Giant documentation lists 599124 or an approved equivalent for the unit being serviced.

Who should install this HVAC component?

A qualified HVAC technician should install and test the condensate pump. Disconnect power first, follow lockout procedures, and confirm safe operation after replacement.

Safety and Installation Notes

Disconnect power before service. HVAC electrical and combustion-related components should be installed and tested by a qualified technician. After installation, confirm wiring, mounting, airflow or fluid routing as applicable, and normal system operation.