{"product_id":"coleman-def-relay-3030-3781","title":"Coleman Defrost Relay 3030-3781 Heat Pump Control Relay Replacement","description":"\u003cdiv class=\"flex flex-col text-sm pb-25\"\u003e\n\u003carticle class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"6db0d1b9-afa9-4bb6-baee-a83e81b71be2\" data-testid=\"conversation-turn-21\" data-scroll-anchor=\"true\" data-turn=\"assistant\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:--spacing(4)] @w-sm\/main:[--thread-content-margin:--spacing(6)] @w-lg\/main:[--thread-content-margin:--spacing(16)] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"04648246-0240-48c2-a834-011bd4463510\" dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-1\" data-message-model-slug=\"gpt-5-2\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[1px]\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full break-words light markdown-new-styling\"\u003e\n\u003cp data-start=\"89\" data-end=\"437\"\u003eThe Coleman Defrost Relay 3030-3781 is an OEM replacement control relay used in Coleman heat pump systems to manage the defrost cycle. This relay plays a critical role in switching components during cold-weather operation, allowing the system to temporarily reverse operation and clear frost buildup from the outdoor coil.\u003c\/p\u003e\n\u003cp data-start=\"439\" data-end=\"766\"\u003eBuilt to original equipment specifications, this relay ensures proper timing and electrical switching during defrost mode, helping maintain system efficiency, airflow, and heating performance. A failed defrost relay can cause symptoms such as ice buildup on the outdoor unit, reduced heating output, or improper system cycling.\u003c\/p\u003e\n\u003cp data-start=\"768\" data-end=\"785\"\u003e\u003cstrong data-start=\"768\" data-end=\"785\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"786\" data-end=\"1021\"\u003e\n\u003cli data-start=\"786\" data-end=\"835\"\u003e\n\u003cp data-start=\"788\" data-end=\"835\"\u003eOEM defrost relay for Coleman heat pump systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"836\" data-end=\"888\"\u003e\n\u003cp data-start=\"838\" data-end=\"888\"\u003eControls electrical switching during defrost cycle\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"889\" data-end=\"939\"\u003e\n\u003cp data-start=\"891\" data-end=\"939\"\u003eHelps prevent coil icing and airflow restriction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"940\" data-end=\"996\"\u003e\n\u003cp data-start=\"942\" data-end=\"996\"\u003eDesigned for reliable performance in HVAC environments\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"997\" data-end=\"1021\"\u003e\n\u003cp data-start=\"999\" data-end=\"1021\"\u003ePart number: 3030-3781\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1023\" data-end=\"1157\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eThis relay is an essential replacement part when servicing or restoring proper defrost function in compatible Coleman heat pump units.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e","brand":"Mobile Home Parts Direct","offers":[{"title":"Default Title","offer_id":51003202306355,"sku":"600454","price":29.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/mobilehomepartsdirect.com\/products\/coleman-def-relay-3030-3781","provider":"Mobile Home Parts Direct","version":"1.0","type":"link"}