What MFD capacitor do I need for my ICP AC?

The correct replacement for ICP model WJH348000K000A1 | 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 WJH348000K000A1 | 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 70+10 MFD 370V for WJH348000K000A1 | Ships Today

Name: ICP Dual Run Capacitor 70+10 MFD 370V for WJH348000K000A1 | Ships Today
Brand: ICP
SKU: 1177750
Price: 32.44 USD
Availability: InStock

SKU: 1177750 Brand: ICP

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Overview

This OEM round dual run capacitor (part #1177750) provides the starting and running torque for both the compressor and condenser fan motor on your ICP Tempstar Heil WJH348000K000A1 heat pump. Rated at 70+10 MFD and 370V, the 70 MFD side serves the compressor and the 10 MFD side serves the condenser fan. A failed capacitor is one of the most common HVAC service calls — symptoms include a compressor that hums but won't start, a condenser fan that spins slowly or not at all, and a bulged or leaking capacitor top.

Specifications

Spec	Value
Part Number	1177750 (CAPACITOR RN RD 370V 70+10)
Type	Dual Run, Round
Brand	ICP / Tempstar / Heil
Capacitance	70 + 10 MFD
Voltage	370V
Tolerance	±6%

Compatibility

A direct OEM fit for the ICP Tempstar Heil WJH348000K000A1 condensing unit and other ICP-family systems (Comfortmaker, Arcoaire, Heil) calling for a 70+10 MFD 370V round dual run capacitor. Verify the MFD and voltage stamped on your old capacitor before installing.

Installation Guide

Safety First — Disconnect power at the disconnect and breaker, then discharge and verify zero voltage across the capacitor terminals with a multimeter.
Access — Remove the condenser service panel.
Document — Photograph the HERM, FAN, and C terminal wiring before disconnecting.
Remove — Discharge the capacitor across its terminals with an insulated resistor, remove the leads, and loosen the mounting strap.
Install — Secure the new capacitor in the strap and reconnect HERM (compressor), FAN, and C (common) per your photo.
Test — Restore power and confirm the compressor and condenser fan start promptly on a cooling call.

Signs You Need a Replacement

Compressor hums but will not start
Condenser fan spins slowly or needs a push to start
Bulged, domed, or leaking capacitor top
Capacitor reads out of range or open on a meter

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 70+10 MFD...

$32.44

Frequently Asked Questions

Does this Capacitor fit my ICP WJH348000K000A1 | Ships Today?

Yes. This is the factory-specified OEM capacitor for the ICP WJH348000K000A1 | 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 WJH348000K000A1 | 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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