What MFD capacitor do I need for my Tempstar AC?

The correct replacement for Tempstar model TCH924GKA300 — OEM | 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 Tempstar equipment which lists the model number TCH924GKA300 — OEM | 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.

Is this capacitor compatible with Bryant or Payne systems too?

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

Tempstar

Tempstar Run Capacitor 35 MFD 440V for TCH924GKA300 — OEM | Ships Today

Name: Tempstar Run Capacitor 35 MFD 440V for TCH924GKA300 — OEM | Ships Today
Brand: Tempstar
SKU: 1185067-GEN
Price: 24.95 USD
Availability: InStock

SKU: 1185067-GEN Brand: Tempstar

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Overview

This genuine OEM run capacitor (part number 1185067) is rated at 35 MFD and 440V for the Tempstar TCH924GKA300 heat pump. A run capacitor stores and delivers an electrical phase shift that keeps the motor it serves running efficiently and at full torque. A weak or failed 35 MFD capacitor is one of the most common HVAC failures — it causes hard starting, motor hum, overheating, and tripped breakers. Replacing it with a correctly rated 35 MFD 440V OEM capacitor restores smooth starts and reliable running performance while protecting the motor windings from premature failure.

Specifications

Spec	Value
Part Number	1185067
Type	Single run capacitor
Brand	Tempstar (ICP / Heil family)
Capacitance	35 MFD
Voltage Rating	440V (compatible with 370V applications)
Fit	OEM direct replacement

Compatibility

Designed as a direct-fit replacement for the Tempstar TCH924GKA300. Thanks to the shared ICP/Tempstar/Heil/Comfortmaker platform, this 35 MFD 440V capacitor also fits many equivalent models across those brands. A 440V capacitor safely replaces 370V units of the same microfarad value. Verify 35 MFD before ordering.

Installation Guide

Safety First — Disconnect power at the disconnect and breaker, and verify zero voltage. Discharge the capacitor across its terminals with an insulated resistor before touching it.
Access — Remove the service panel to reach the capacitor in the control compartment.
Document — Photograph the terminal wiring before disconnecting.
Remove — Pull the wires from the capacitor terminals and loosen the mounting strap.
Install — Secure the new capacitor in the strap and reconnect the wires to the matching terminals per your photo.
Test — Restore power and confirm the motor starts promptly and runs without hum or excessive heat.

Signs You Need a Replacement

Motor hums but won't start, or starts slowly
Bulging, leaking, or swollen capacitor top
Capacitance reads out of tolerance on a meter
System trips the breaker or overheats during operation

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

Tempstar Run Capacitor 35 MFD 44...

$24.95

Frequently Asked Questions

Does this Capacitor fit my Tempstar TCH924GKA300 — OEM | Ships Today?

Yes. This is the factory-specified OEM capacitor for the Tempstar TCH924GKA300 — OEM | 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 Tempstar TCH924GKA300 — OEM | 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 Tempstar 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 Tempstar 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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