What MFD capacitor do I need for my Tempstar AC?

The correct replacement for Tempstar model TCH948GKA100 — Single-Run | 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 TCH948GKA100 — Single-Run | 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 45 MFD 440V for TCH948GKA100 — Single-Run | Ships Today

Name: Tempstar Run Capacitor 45 MFD 440V for TCH948GKA100 — Single-Run | Ships Today
Brand: Tempstar
SKU: 1185069-GEN
Price: 22.95 USD
Availability: InStock

SKU: 1185069-GEN Brand: Tempstar

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Overview

This OEM single-run capacitor (Tempstar part number 1185069) is rated at 45 MFD and 440V and is the factory replacement for the Tempstar TCH948GKA100 condensing unit. A run capacitor stores and releases electrical energy to give the compressor or condenser fan motor the steady phase-shifted current it needs to run efficiently. When the capacitor weakens or fails, the motor draws excess amperage, runs hot, and eventually stops starting altogether. Common failure symptoms include a humming compressor that will not start, a condenser fan that needs a push to spin, hard starts, high amp draw, and a bulged or leaking capacitor can. Replacing a tired capacitor restores rated performance and protects the motor from burnout.

Specifications

Spec	Value
Part Number	1185069
Type	Single-Run Capacitor
Brand	Tempstar
Capacitance	45 MFD
Voltage	440V
Fits Model	TCH948GKA100

Compatibility

Direct OEM fit for the Tempstar TCH948GKA100. Because ICP builds Tempstar, Heil, Comfortmaker, and several other lines on shared platforms, this capacitor also services many equivalent ICP-family condensing units. Always confirm the printed MFD and voltage on your existing capacitor before ordering.

Installation Guide

Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter. Discharge the capacitor across its terminals with an insulated resistor.
Access — Remove the condensing unit service panel.
Document — Photograph all wire connections before disconnecting anything.
Remove — Note terminal markings, pull the spade connectors, and loosen the mounting strap to free the old capacitor.
Install — Mount the new 45 MFD 440V capacitor, secure the strap, and reconnect each lead exactly per your photo.
Test — Restore power and verify the compressor and fan start cleanly and run at rated amperage.

Signs You Need a Replacement

Compressor or fan hums but will not start
Condenser fan only spins after a manual push
Bulged, swollen, or leaking capacitor top
Measured capacitance below the rated 45 MFD

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 45 MFD 44...

$22.95

Frequently Asked Questions

Does this Capacitor fit my Tempstar TCH948GKA100 — Single-Run | Ships Today?

Yes. This is the factory-specified OEM capacitor for the Tempstar TCH948GKA100 — Single-Run | 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 TCH948GKA100 — Single-Run | 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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