{"product_id":"carrier-621-110-defrost-control-circuit-board-1","title":"Carrier 621-110 Defrost Control Circuit Board","description":"\u003cp\u003e\u003cstrong\u003e\u003cem\u003eThis product may contain shelf wear, have minor cosmetic imperfections, or have been tested. All our certified pre-owned products are backed by our return policy. We offer free shipping on all items. Please contact us for discounts or if you have any questions. We look forward to doing business with you!\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e• Model Number: 621-110\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e• Function: Defrost Control Circuit Board • Compatible Systems: Carrier, Bryant, Payne HVAC and refrigeration units • Control Type: Defrost cycle timing and operation • Voltage: 24VAC (typical for HVAC control boards) • Operating Temperature Range: 40°F to 104°F (4°C to 40°C) • Mounting: Standard PCB mounting for HVAC control panels • Features: Automatic defrost cycle control, relay outputs for defrost heater and compressor • Safety: Over-temperature protection and fault detection • Warranty: 1-year manufacturer warranty\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"Default Title","offer_id":43672846041197,"sku":"11928","price":96.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/2419\/1853\/files\/s-l800_8da16639-02c9-4dc4-bde1-dba956d17734.jpg?v=1763340275","url":"https:\/\/willardshvacsupply.com\/products\/carrier-621-110-defrost-control-circuit-board-1","provider":"Willard's HVAC Supply","version":"1.0","type":"link"}