What MFD capacitor do I need for my ICP AC?

The correct replacement for ICP model WFAR100C066B1 – 35 MFD 370V Oval | 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 WFAR100C066B1 – 35 MFD 370V Oval | 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 Run Capacitor for WFAR100C066B1 – 35 MFD 370V Oval | Ships Today

Name: ICP Run Capacitor for WFAR100C066B1 – 35 MFD 370V Oval | Ships Today
Brand: ICP
SKU: 1184895
Price: 32.44 USD
Availability: InStock

SKU: 1184895 Brand: ICP

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Overview

This OEM run capacitor keeps the blower motor in your ICP / Heil / Tempstar WFAR100C066B1 air handler running smoothly. Rated at 35 MFD and 370 volts, the capacitor delivers the constant phase-shifted current the PSC blower motor needs to maintain torque and full airflow. Capacitors weaken with age and heat; when this part fails you'll see weak or no airflow, a motor that hums but won't start, frequent overheating shutdowns, or a motor that runs hot and short-cycles. This kit includes the OEM capacitor (part 1184895) and the matching oval mounting strap (part 1014315) so it drops straight into the factory bracket.

Specifications

Spec	Value
Part Number	1184895 (capacitor), 1014315 (strap)
Type	Single Run Capacitor, Oval
Brand	ICP / Heil / Tempstar
Capacitance	35 MFD
Voltage	370V
Fits Model	WFAR100C066B1

Compatibility

Direct OEM replacement for the ICP, Tempstar, Heil, and Comfortmaker WFAR100C066B1 air handler / fan coil. Always confirm the MFD and voltage rating on your old capacitor before installing.

Installation Guide

Safety First – Disconnect power at the breaker and verify zero voltage with a multimeter. Discharge the old capacitor across its terminals with an insulated resistor.
Access – Remove the service panel to expose the blower and control area.
Document – Photograph all wire positions before disconnecting.
Remove – Loosen the strap, note terminal markings, and pull the leads off the old capacitor.
Install – Mount the new capacitor with the included oval strap and reconnect each lead per your photo.
Test – Restore power and confirm the blower spins up to full speed.

Signs You Need a Replacement

Blower hums but won't start
Weak or reduced airflow
Bulged, leaking, or burst capacitor can
Motor overheats or short-cycles

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 Run Capacitor for WFAR100C06...

$32.44

Frequently Asked Questions

Does this Capacitor fit my ICP WFAR100C066B1 – 35 MFD 370V Oval | Ships Today?

Yes. This is the factory-specified OEM capacitor for the ICP WFAR100C066B1 – 35 MFD 370V Oval | 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 WFAR100C066B1 – 35 MFD 370V Oval | 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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