What MFD capacitor do I need for my ICP AC?

The correct replacement for ICP model RHS243S0FA0AAAA — OEM 1183001 | 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 RHS243S0FA0AAAA — OEM 1183001 | 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 35+5 MFD 440V for RHS243S0FA0AAAA — OEM 1183001 | Ships Today

Name: ICP Dual Run Capacitor 35+5 MFD 440V for RHS243S0FA0AAAA — OEM 1183001 | Ships Today
Brand: ICP
SKU: 1183001
Price: 32.44 USD
Availability: InStock

SKU: 1183001 Brand: ICP

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Overview

This OEM dual run capacitor (part number 1183001, "Capacitor Plate") is a factory replacement for the ICP RHS243S0FA0AAAA heat pump condensing unit. A dual run capacitor stores and delivers the electrical charge needed to start and continuously run both the compressor and the condenser fan motor from a single component. Rated at 35+5 MFD and 440V, it provides the proper phase shift that keeps these motors running smoothly and efficiently. When a run capacitor weakens or fails, the compressor may hum but not start, the condenser fan may spin slowly or stall, the unit may trip the breaker, or the system may short-cycle. Replacing a failing capacitor restores full cooling and heat-pump performance and protects the motors from overheating and premature failure.

Specifications

Spec	Value
Part Number	1183001 (Capacitor Plate)
Type	Dual Run Capacitor
Brand	ICP
Capacitance	35 + 5 MFD
Voltage Rating	440V (compatible with 370V applications)
Terminals	HERM / FAN / C (common)
Fits Model	RHS243S0FA0AAAA

Compatibility

Engineered for the ICP RHS243S0FA0AAAA, this capacitor also fits the equivalent Tempstar, Heil, and Comfortmaker condensing units built on the same platform. Always confirm the MFD and voltage rating printed on your existing capacitor before installing.

Installation Guide

Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter. Capacitors hold a charge.
Access — Remove the condenser unit's electrical access panel.
Document — Photograph all wire connections (HERM, FAN, C) before disconnecting anything.
Remove — Discharge the old capacitor across its terminals with an insulated resistor, then disconnect the leads and unfasten the mounting strap.
Install — Mount the new capacitor, reconnect each wire to the matching terminal per your photo.
Test — Restore power and verify the compressor and condenser fan start and run normally.

Signs You Need a Replacement

Compressor or fan hums but will not start
Condenser fan spins slowly or intermittently
Bulging, leaking, or burst capacitor top
System short-cycles or trips the breaker on startup

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 35+5 MFD ...

$32.44

Frequently Asked Questions

Does this Capacitor fit my ICP RHS243S0FA0AAAA — OEM 1183001 | Ships Today?

Yes. This is the factory-specified OEM capacitor for the ICP RHS243S0FA0AAAA — OEM 1183001 | 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 RHS243S0FA0AAAA — OEM 1183001 | 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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