What MFD capacitor do I need for my ICP AC?

The correct replacement for ICP model WFMR070A024B1 — 7.5 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 WFMR070A024B1 — 7.5 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 WFMR070A024B1 — 7.5 MFD 370V Oval | Ships Today

Name: ICP Run Capacitor for WFMR070A024B1 — 7.5 MFD 370V Oval | Ships Today
Brand: ICP
SKU: 1170643
Price: 19.50 USD
Availability: InStock

SKU: 1170643 Brand: ICP

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Overview

This is the OEM oval run capacitor (part #1170643, STRAP CAPACITOR OVAL S) for the ICP WFMR070A024B1 gas furnace. The run capacitor delivers a steady phase shift to the blower motor windings, allowing the motor to start smoothly and run efficiently at full torque. Rated at 7.5 MFD and 370V, it mounts via the included retaining strap. A failed run capacitor is one of the most common causes of a furnace blower that hums but won't spin, starts intermittently, or overheats and trips on thermal overload. Replacing a weak capacitor restores proper airflow and protects the motor from premature burnout.

Specifications

Spec	Value
Part Number	1170643
Type	Single Run Capacitor, Oval
Brand	ICP (Tempstar / Heil)
Capacitance	7.5 MFD
Voltage	370V
Mounting	Oval, strap-mount
Fitment	OEM Replacement

Compatibility

Engineered for the ICP/Tempstar/Heil WFMR070A024B1 furnace and other models using OEM capacitor 1170643. Always confirm the MFD and voltage rating printed on your existing capacitor before installing.

Installation Guide

Safety First — Disconnect power at the breaker and verify zero voltage with a multimeter. A charged capacitor can hold a dangerous shock; discharge it across a 20k ohm resistor before handling.
Access — Remove the furnace blower compartment service panel.
Document — Photograph all wire positions before disconnecting.
Remove — Loosen the mounting strap, pull the spade terminals, and lift out the old capacitor.
Install — Secure the new capacitor in the strap and reconnect the leads exactly per your photo.
Test — Restore power and confirm the blower spins up quickly and runs quietly.

Signs You Need a Replacement

Blower motor hums but does not start
Bulged, leaking, or swollen capacitor top
Motor runs hot or trips on thermal overload
Measured capacitance reads below the 7.5 MFD rating

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 WFMR070A02...

$19.50

Frequently Asked Questions

Does this Capacitor fit my ICP WFMR070A024B1 — 7.5 MFD 370V Oval | Ships Today?

Yes. This is the factory-specified OEM capacitor for the ICP WFMR070A024B1 — 7.5 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 WFMR070A024B1 — 7.5 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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