Dual, Round, 440 Volts, 40/10 Microfarads
Grid is 1 inch square
Mars Dual Run Capacitor 12798
Mars Dual Run Capacitor 12798
Mars Dual Run Capacitor 12798

Mars Dual Run Capacitor 12798

Genuine OEM Part # 12798RC Item # 3188821Alternative Part Number(s)
Dual, Round, 440 Volts, 40/10 Microfarads
Grid is 1 inch square
Mars Dual Run Capacitor 12798
Mars Dual Run Capacitor 12798
Mars Dual Run Capacitor 12798
$13.50
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Dual, Round, 440 Volts, 40/10 Microfarads
Helpful Tips
Please note that the shape (Round/Oval-Flat) only matters for mounting purposes.
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$13.50
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This part 12798 is compatible with:

Product Type:
Central Air Conditioner
Brands:
Mars

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Maintenance
PTAC Unit Maintenance Tips
Frequently Bought with Dual Run Capacitor
P291-4554RS Dual Run Capacitor
297286803 Run Capacitor
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Dual Run Capacitor Customer Reviews

Common Problems Fixed by the Dual Run Capacitor

Based on customer reports and repair data, this part commonly fixes these issues:

Very Likely

Central air conditioner not cooling properly

Very Likely

Heat pump not cooling

Very Likely

Heat pump not heating

Very Likely

Heat pump won't turn on

Very Likely

Heat pump fan motor does not run

Very Likely

Heat pump compressor won't run

Very Likely

Heat pump is frequently cycling/short cycling

Likely

Heat pump coils frosting up

Possible

Central Air Conditioner Condenser fan motor does not run

Possible

Central Air Conditioner Condensing unit does not run

Possible

Central air conditioner compressor won't run

About the Dual Run Capacitor

If the dual run capacitor is defective, the fan motor might be noisy, overheat, or not run at all. To determine if the dual run capacitor has failed, inspect the capacitor. If the dual run capacitor is bulging or leaking, replace it.

Repair Help by Brands and Product Type

Alternative Part Number(s)

Replaces Part Number S1-CAP4410040DR
Replaces Part Number 12088