{"product_id":"coleman-run-capacitor-1499-5781-rv-ac-replacement","title":"Coleman Run Capacitor 1499-5781 | RV AC Replacement","description":"\u003cp class=\"nvn-hero\"\u003eWhen a Coleman rooftop AC hums but the fan won't spin up or the compressor buzzes and trips, the run capacitor is usually the first suspect. This is the genuine Coleman replacement, part 1499-5781, built for the 45204 and 45254 series units. A small, inexpensive part that gets you back to cold air.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eThe Coleman run capacitor, manufacturer part 1499-5781, is the factory replacement for a specific group of Coleman rooftop RV air conditioners. If your AC still hums but the fan won't spin up, or the compressor buzzes and trips the breaker, a worn-out run capacitor is one of the first things to check. It's a small part that does a big job, storing and releasing the charge the motor needs to start and keep turning.\u003c\/p\u003e\n\u003cp\u003eThis one is built for the 45204 and 45254 series units. The full fit list is 45204-6752, 45204-6762, 45204-6782, 45204-6792, 45254-6752, 45254-6762, 45254-6782, and 45254-6792. Check the model number on your unit's data plate or on the ceiling assembly before you order. If your model isn't on that list, don't guess. Reach out and we'll help you match the right part.\u003c\/p\u003e\n\u003cp\u003eHere's why the exact part matters. A run capacitor has to match the capacitance and voltage the motor was designed around. Go too far off and you either don't get reliable starts or you shorten the life of the motor windings. Because this is the genuine Coleman replacement for these models, that matching is already done for you. You're not cross-referencing charts or hoping a generic is close enough.\u003c\/p\u003e\n\u003cp\u003eA word on safety before you dig in. A capacitor holds a charge even after the power is off, so kill the breaker and shore power first, and discharge the old capacitor before you touch the terminals. If you're comfortable working around AC line voltage, it's a straightforward swap. If you're not, this is a quick job for an RV tech, and it beats replacing a whole rooftop unit.\u003c\/p\u003e\n\u003cp\u003eCommon story on these units: the AC worked fine last season, sat over the winter, and now it won't cool on the first hot weekend. Nine times out of ten the capacitor is the cheap fix that gets you back to cold air. Keep a spare in the bay if you full-time or boondock a lot. It's the kind of part you're glad you had when the campground is booked solid and the sun's out.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003eGenuine Coleman replacement, manufacturer part 1499-5781\u003c\/li\u003e\n  \u003cli\u003eFits Coleman rooftop air conditioner models in the 45204 and 45254 series\u003c\/li\u003e\n  \u003cli\u003eRun capacitor sized to the factory motor spec for these units\u003c\/li\u003e\n  \u003cli\u003eRestores fan and compressor startup when the original capacitor fails\u003c\/li\u003e\n  \u003cli\u003eDirect swap for the original capacitor, no unit modifications\u003c\/li\u003e\n  \u003cli\u003eShips as a single capacitor replacement part\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"nvn-trust\"\u003e\n  \u003ch2\u003eWhy Buy from NVN Marine\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eAuthorized Coleman reseller, full manufacturer warranty\u003c\/li\u003e\n    \u003cli\u003eNMEA member and ABYC certified, advice from real boat techs\u003c\/li\u003e\n    \u003cli\u003eSame-day shipping before 3 PM ET on in-stock items\u003c\/li\u003e\n    \u003cli\u003eNY headquarters and Fort Lauderdale flagship retail store\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"nvn-faq\"\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhich Coleman AC models does this capacitor fit?\u003c\/summary\u003e\n    \u003cp\u003eIt's the factory replacement for the 45204 and 45254 series: 45204-6752, 45204-6762, 45204-6782, 45204-6792, 45254-6752, 45254-6762, 45254-6782, and 45254-6792. Check your model number on the unit's data plate before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I know if my run capacitor has failed?\u003c\/summary\u003e\n    \u003cp\u003eThe classic sign is the unit hums but the fan or compressor won't start, or it starts slowly and struggles. A bulged or leaking top on the old capacitor is a dead giveaway. When in doubt, have it tested with a meter that reads capacitance.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs it okay to keep running the AC with a bad capacitor?\u003c\/summary\u003e\n    \u003cp\u003eNo. A weak capacitor makes the motor work harder to start, which draws extra current and cooks the windings over time. Running it that way can turn a cheap capacitor fix into a whole new rooftop unit. Replace it before you keep running the AC.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I know I'm getting the right size capacitor?\u003c\/summary\u003e\n    \u003cp\u003eYou match the part to your unit, not by guessing a number off the old can. This part, 1499-5781, is the correct capacitor for the listed 45204 and 45254 models, so you don't have to cross-reference microfarad and voltage charts yourself.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this a run capacitor or a start capacitor?\u003c\/summary\u003e\n    \u003cp\u003eIt's a run capacitor. It stays in the circuit the whole time the motor is running to keep it turning efficiently, unlike a start capacitor that only kicks in during startup.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDo I need to discharge the old capacitor before replacing it?\u003c\/summary\u003e\n    \u003cp\u003eYes. A capacitor holds a charge even after you cut the power, so shut off the breaker and shore power, then discharge the old capacitor safely before touching the terminals. If you're not comfortable around AC line voltage, hand the job to an RV tech.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"nvn-specs\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eTitle\u003c\/th\u003e\n\u003ctd\u003eRun Capacitor for Coleman 45204 and 45254 Series RV Air Conditioners\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eColeman\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eColeman RVP\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e1499-5781\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e755790411122\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eComponent Type\u003c\/th\u003e\n\u003ctd\u003eRun Capacitor\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eRV Rooftop Air Conditioner\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCompatible Coleman Models\u003c\/th\u003e\n\u003ctd\u003e45204-6752, 45204-6762, 45204-6782, 45204-6792, 45254-6752, 45254-6762, 45254-6782, 45254-6792\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Which Coleman AC models does this capacitor fit?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's the factory replacement for the 45204 and 45254 series: 45204-6752, 45204-6762, 45204-6782, 45204-6792, 45254-6752, 45254-6762, 45254-6782, and 45254-6792. Check your model number on the unit's data plate before ordering.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How do I know if my run capacitor has failed?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The classic sign is the unit hums but the fan or compressor won't start, or it starts slowly and struggles. A bulged or leaking top on the old capacitor is a dead giveaway. When in doubt, have it tested with a meter that reads capacitance.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is it okay to keep running the AC with a bad capacitor?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No. A weak capacitor makes the motor work harder to start, which draws extra current and cooks the windings over time. Running it that way can turn a cheap capacitor fix into a whole new rooftop unit. Replace it before you keep running the AC.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How do I know I'm getting the right size capacitor?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"You match the part to your unit, not by guessing a number off the old can. This part, 1499-5781, is the correct capacitor for the listed 45204 and 45254 models, so you don't have to cross-reference microfarad and voltage charts yourself.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is this a run capacitor or a start capacitor?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's a run capacitor. It stays in the circuit the whole time the motor is running to keep it turning efficiently, unlike a start capacitor that only kicks in during startup.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Do I need to discharge the old capacitor before replacing it?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. A capacitor holds a charge even after you cut the power, so shut off the breaker and shore power, then discharge the old capacitor safely before touching the terminals. If you're not comfortable around AC line voltage, hand the job to an RV tech.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Coleman","offers":[{"title":"Default Title","offer_id":45075050692701,"sku":"2009594","price":32.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_decd1b7a-372f-4db3-8b5d-ddaaa8eff65f.jpg?v=1789834543","url":"https:\/\/nvnmarine.com\/products\/coleman-run-capacitor-1499-5781-rv-ac-replacement","provider":"NVN Marine","version":"1.0","type":"link"}