What MFD capacitor do I need for my ICP AC?

The correct replacement for ICP model RGS150LDAA0AGAA — 440V Round | Ships Today is this exact part. It is the factory-specified replacement with exact OEM specifications. Using a part with different specifications can cause equipment damage or void your warranty. You can verify this by checking the data plate on your ICP equipment which lists the model number RGS150LDAA0AGAA — 440V Round | Ships Today.

My AC hums but will not start. What part do I need?

An AC that hums but will not start is the classic symptom of a failed capacitor. The capacitor provides the electrical boost needed to start the compressor and fan motors. When it fails, you hear the hum of the motor trying to start but it cannot overcome inertia. Other symptoms include the fan spinning slowly, the AC cycling on and off rapidly, or a visibly swollen or leaking capacitor. Replacement cost: $15 to $80 for the part, DIY in 30 minutes.

ICP

ICP Dual Run Capacitor 45+5 MFD for RGS150LDAA0AGAA — 440V Round | Ships Today

Name: ICP Dual Run Capacitor 45+5 MFD for RGS150LDAA0AGAA — 440V Round | Ships Today
Brand: ICP
SKU: 1171842
Price: 32.44 USD
Availability: InStock

SKU: 1171842 Brand: ICP

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Overview

This OEM dual run capacitor is engineered for the ICP (International Comfort Products) RGS150LDAA0AGAA packaged gas/electric unit. A dual run capacitor stores and delivers the electrical phase shift that both the compressor and the condenser fan motor need to start and run efficiently. Rated at 45+5 MFD and 370/440V, it supplies separate terminals (HERM and FAN) from a single can. When a capacitor weakens, you will see hard starting, humming, a condenser fan that hesitates or stalls, a compressor that trips on overload, or a bulged/leaking can. Replacing a failing capacitor restores full starting torque and protects the more expensive motor and compressor from running under-amped.

Specifications

Spec	Value
OEM Part Numbers	1171842 (Capacitor Boot), 1171552 (Oval Capacitor Clamp)
Type	Dual Run Capacitor
Brand	ICP (Tempstar / Heil / Comfortmaker)
Capacitance	45 + 5 MFD
Voltage Rating	370/440 VAC
Tolerance	±6%
Shape	Round

Compatibility

Designed for the ICP RGS150LDAA0AGAA and shared across Tempstar, Heil, and Comfortmaker packaged units built on the same platform. Includes the matching capacitor boot and oval mounting clamp hardware. Always confirm MFD and voltage on the failed capacitor before installing.

Installation Guide

Safety First — Disconnect power at the unit disconnect and verify zero voltage with a multimeter. Capacitors hold a charge.
Access — Remove the electrical service panel.
Document — Photograph all wires (HERM, FAN, C) before disconnecting.
Discharge & Remove — Safely discharge the old capacitor across its terminals with an insulated resistor, then release the mounting clamp and remove it.
Install — Seat the new capacitor in the oval clamp, fit the boot, and reconnect each lead per your photo.
Test — Restore power and verify the compressor and condenser fan start cleanly.

Signs You Need a Replacement

Compressor or fan hums but will not start
Condenser fan spins slowly or only after a manual push
Bulged, swollen, or leaking capacitor top
Breaker trips or compressor cycles on overload

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.

Shipping Information

Orders placed before 3PM CST ship same business day
Standard delivery: 2-5 business days
Express shipping available at checkout
Free shipping on orders over $75
Tracking number emailed upon shipment

Return Policy

30-day returns on unused parts in original packaging
Electrical parts (capacitors, contactors, control boards) are final sale once installed
Email info@nationalhvacparts.com to initiate a return
Refunds processed within 5-7 business days

ICP Dual Run Capacitor 45+5 MFD ...

$32.44

Frequently Asked Questions

Does this Capacitor fit my ICP RGS150LDAA0AGAA — 440V Round | Ships Today?

Yes. This is the factory-specified OEM capacitor for the ICP RGS150LDAA0AGAA — 440V Round | Ships Today. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.

How do I replace the capacitor on my ICP RGS150LDAA0AGAA — 440V Round | Ships Today?

Difficulty: Easy (20–30 min)
Step 1: Turn off power at breaker. Step 2: Open condensing unit panel. Step 3: Photograph the old capacitor wiring (Common/Herm/Fan). Step 4: Discharge old capacitor with insulated screwdriver. Step 5: Disconnect and remove old capacitor. Step 6: Mount new capacitor, reconnect wires to matching terminals. Step 7: Close panel, restore power, test. Tools: screwdriver, needle-nose pliers.

My AC hums but won’t start. What part do I need?

An AC that hums but won’t start is the classic symptom of a failed capacitor. The capacitor provides the electrical boost to start the compressor. When it fails, you hear humming but the motor can’t overcome inertia. Other symptoms: fan spinning slowly, AC cycling on/off rapidly, or a visibly swollen capacitor. Fix: replace capacitor ($15–$80 DIY, 30 min).

Is this capacitor compatible with Bryant or Payne too?

Many ICP parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.

Should I use OEM or aftermarket for my ICP capacitor?

OEM strongly recommended. OEM capacitors have ±6% MFD tolerance vs aftermarket ±10%. The looser tolerance causes motor winding stress, higher temps, and shorter compressor life. Price difference is only $10–$20 — OEM is the clear value choice.

How fast does National HVAC Parts ship?

Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.

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