{"product_id":"dometic-duotherm-rv-air-conditioner-overload-protector-kit","title":"Dometic DuoTherm AC Overload Protector Kit - Fits MRA4720 Air Conditioner - Part# 3312138.000","description":"\u003cdiv style=\"font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; color: #333; line-height: 1.6;\"\u003e\n\n\u003cp\u003eThe Dometic DuoTherm AC Overload Protector Kit (Part# 3312138.000) is a critical safety component designed to protect your RV air conditioner's compressor from electrical overload and damage. This genuine OEM replacement kit is specifically engineered for the Dometic MRA4720 marine and RV air conditioning unit, providing reliable thermal protection that prevents costly compressor failures. If your AC unit is tripping breakers, failing to start, or the compressor is running hot, this overload protector kit is likely the solution you need.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #dc2626; font-size: 20px; font-weight: 700; margin-top: 24px; margin-bottom: 12px; border-bottom: 2px solid #dc2626; padding-bottom: 8px;\"\u003eKey Features\u003c\/h2\u003e\n\u003cul style=\"line-height: 1.8; margin-bottom: 24px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Dometic OEM Part:\u003c\/strong\u003e Factory-engineered overload protector ensures perfect fit and reliable performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressor Protection:\u003c\/strong\u003e Automatically shuts off power when excessive current or heat is detected, preventing permanent compressor damage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Replacement Kit:\u003c\/strong\u003e Includes all necessary components for a proper installation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Fit for MRA4720:\u003c\/strong\u003e Designed specifically for Dometic DuoTherm MRA4720 marine air conditioner units\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Identification:\u003c\/strong\u003e Replaces failed or tripping overload protectors that prevent AC startup\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCritical Safety Component:\u003c\/strong\u003e Protects your investment by preventing electrical damage to expensive compressor components\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"color: #dc2626; font-size: 20px; font-weight: 700; margin-top: 24px; margin-bottom: 12px;\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"table table-bordered table-sm\" style=\"width: 100%; margin-bottom: 24px; font-size: 14px;\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color: #f8f9fa; font-weight: 600; width: 35%;\"\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e3312138.000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color: #f8f9fa; font-weight: 600;\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eOverload Protector Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color: #f8f9fa; font-weight: 600;\"\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eAir Conditioner Compressor Protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color: #f8f9fa; font-weight: 600;\"\u003eOEM Part\u003c\/td\u003e\n\u003ctd\u003eYes - Genuine Dometic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2 style=\"color: #dc2626; font-size: 20px; font-weight: 700; margin-top: 24px; margin-bottom: 12px;\"\u003eCompatibility\u003c\/h2\u003e\n\u003ctable class=\"table table-bordered table-sm\" style=\"width: 100%; margin-bottom: 24px; font-size: 14px;\"\u003e\n\u003ctr style=\"background-color: #f8f9fa; font-weight: 600;\"\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eDescription\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMRA4720\u003c\/td\u003e\n\u003ctd\u003eDometic DuoTherm Marine Air Conditioner\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2 style=\"color: #dc2626; font-size: 20px; font-weight: 700; margin-top: 24px; margin-bottom: 12px;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003cdiv style=\"margin-bottom: 16px;\"\u003e\n\u003cp style=\"font-weight: 600; color: #1f2937; margin-bottom: 6px;\"\u003eQ: How do I know if my overload protector has failed?\u003c\/p\u003e\n\u003cp style=\"margin-left: 16px; color: #4b5563;\"\u003eA: Common symptoms include the AC compressor failing to start, the unit tripping the circuit breaker repeatedly, clicking sounds without the compressor engaging, or the AC running briefly then shutting off. The overload protector may also show visible signs of burning or damage when inspected.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 16px;\"\u003e\n\u003cp style=\"font-weight: 600; color: #1f2937; margin-bottom: 6px;\"\u003eQ: Can I install this overload protector myself?\u003c\/p\u003e\n\u003cp style=\"margin-left: 16px; color: #4b5563;\"\u003eA: Installation requires working with electrical components and refrigerant systems. While mechanically inclined RV owners can perform this repair, we recommend having a certified RV technician or HVAC professional install the overload protector to ensure proper installation and system safety. Always disconnect power before attempting any AC repairs.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 16px;\"\u003e\n\u003cp style=\"font-weight: 600; color: #1f2937; margin-bottom: 6px;\"\u003eQ: Will this work on other Dometic air conditioner models?\u003c\/p\u003e\n\u003cp style=\"margin-left: 16px; color: #4b5563;\"\u003eA: This overload protector kit is specifically designed for the Dometic MRA4720 marine air conditioner. Using it on other models may result in improper protection or incompatibility. Always verify your exact model number before ordering to ensure you receive the correct replacement part.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 16px;\"\u003e\n\u003cp style=\"font-weight: 600; color: #1f2937; margin-bottom: 6px;\"\u003eQ: What causes an overload protector to fail?\u003c\/p\u003e\n\u003cp style=\"margin-left: 16px; color: #4b5563;\"\u003eA: Overload protectors typically fail due to age, repeated thermal cycling, electrical surges, or prolonged exposure to high temperatures. They can also trip and fail if the compressor itself is drawing excessive current due to mechanical problems, low refrigerant, or dirty condenser coils. If your new overload protector fails quickly, have the entire AC system inspected for underlying issues.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"color: #dc2626; font-size: 20px; font-weight: 700; margin-top: 32px; margin-bottom: 12px;\"\u003eWhy Choose Elkhart RV Parts?\u003c\/h2\u003e\n\u003cp style=\"background-color: #f9fafb; padding: 20px; border-left: 4px solid #dc2626; margin-bottom: 24px;\"\u003eAt Elkhart RV Parts, we specialize in hard-to-find Dometic replacement parts that keep your RV systems running smoothly. Located in Elkhart, Indiana — the RV Capital of the World — we understand the importance of getting the right part quickly. We stock only genuine OEM Dometic components and provide expert support to help you identify exactly what you need. With fast shipping and knowledgeable staff, we're your trusted source for Dometic DuoTherm air conditioner parts.\u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"Dometic","offers":[{"title":"Default Title","offer_id":48316759179416,"sku":"3312138.000","price":52.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/elkhartrvparts.com\/en-ca\/products\/dometic-duotherm-rv-air-conditioner-overload-protector-kit","provider":"Elkhart RV Parts","version":"1.0","type":"link"}