Coleman 1497-0851 Start Capacitor for Mach 10 AC
Coleman 1497-0851 Start Capacitor for Mach 10 AC — Product description
The Coleman 1497-0851 start capacitor is the direct replacement for the start capacitor in a Mach 10 rooftop air conditioner. If your Mach 10 hums but won't spin up, or trips the breaker trying to start, a worn capacitor is usually the cause. This is the factory-matched part, so it drops right back into place.
The Coleman start capacitor, part number 1497-0851, is the direct replacement for the start capacitor in a Coleman Mach 10 rooftop air conditioner. If your Mach 10 has quit cooling the way it should, the capacitor is one of the first parts worth checking. It's a small component, but it does a big job.
Here's what it does. The start capacitor gives the AC compressor and fan motor the jolt of extra current they need to spin up from a dead stop. Over time, with heat and years of cycling on and off, capacitors wear out. When that happens, you'll usually notice the symptoms right away. The unit hums but won't start. The compressor tries to kick on, struggles, then trips the breaker. Sometimes you'll hear a click and nothing else. A swollen or leaking capacitor is a dead giveaway.
Because this is the matched part for the Mach 10, you're not guessing at ratings or hoping a generic will work. It drops into the same spot the original came out of. For most folks comfortable with basic RV electrical work, this is a short repair that can save a service call.
A word on safety, because it matters here. A capacitor stores an electrical charge even after the power is off. Always disconnect shore power and the battery, then discharge the capacitor with an insulated screwdriver across the terminals before you touch the wiring. If you're not sure, have an RV tech handle it. It's cheap insurance.
This is a replacement start capacitor only. It doesn't include wiring, terminals, or any other AC components. If you've already confirmed the capacitor is the culprit, whether by testing with a multimeter or by the classic bulged-top visual, this gets your Mach 10 blowing cold again. Keep one in the rig as a spare if you boondock often. A dead AC capacitor on a hot afternoon is a miserable surprise, and this is an easy part to stash in the parts bin.
Key Features
- Direct replacement for the Coleman Mach 10 air conditioner, matched to the factory capacitor so there's no guessing at ratings
- Start capacitor function delivers the surge of current the compressor and fan motor need to spin up from a stop
- Genuine Coleman RVP component, part number 1497-0851, not a generic substitute
- Common fix for a no-start AC that hums, trips the breaker, or won't kick the compressor on
- Drops into the original location for a straightforward repair
- Easy to stash in the parts bin as a spare for hot-weather peace of mind
Why Buy from NVN Marine
- Authorized Coleman reseller, full manufacturer warranty
- NMEA member and ABYC certified, advice from real boat techs
- Same-day shipping before 3 PM ET on in-stock items
- NY headquarters and Fort Lauderdale flagship retail store
Technical specifications
| Title | Start Capacitor for Coleman Mach 10 Air Conditioner |
|---|---|
| Brand | Coleman |
| Manufacturer | Coleman RVP |
| Manufacturer Part Number | 1497-0851 |
| UPC | 755790410934 |
| Part Type | Start Capacitor |
| Application | Coleman Mach 10 Air Conditioner |
| Product Type | RV Air Conditioner Replacement Part |
Frequently asked questions
What is the replacement start capacitor for a Coleman Mach 10 air conditioner?
It's Coleman part number 1497-0851. This is the direct replacement start capacitor for the Mach 10 rooftop unit, so it matches the original and drops into the same spot.
How do I know if my AC start capacitor is bad?
The usual signs are a unit that hums but won't start, a compressor that tries to kick on and trips the breaker, or a swollen, bulged, or leaking capacitor top. If the AC clicks and does nothing, the capacitor is a likely suspect.
How do I test the capacitor on a Coleman Mach AC?
After cutting power and safely discharging it, you can check a capacitor with a multimeter set to the capacitance setting. A reading well below the value stamped on the old capacitor, or no reading at all, means it's done. When in doubt, have an RV tech confirm it.
Is this a start capacitor or a run capacitor?
This is the start capacitor. It gives the motor the extra current it needs to spin up from a stop.
Does this fit my Mach 10?
Yes. Part 1497-0851 is the replacement start capacitor for the Coleman Mach 10 air conditioner. Always match the part to your specific unit and confirm against the capacitor you're removing.
Do I need to discharge the old capacitor before replacing it?
Yes, and it matters. A capacitor holds a charge even with the power off. Disconnect shore power and the battery, then discharge the terminals with an insulated screwdriver before you touch the wiring.
