{"product_id":"carrier-042300-m-control-circuit-board-hvac-042398c","title":"Carrier 042300 M Control Circuit Board HVAC 042398C","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· Control circuit board model: Carrier 042300 M (part number 042398C)\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e· Functions as motor control and low-voltage interface for HVAC systems · Controls fan relay operation and electric heat sequencing (stages W2, W3, E) · Provides 24 VAC power from transformer secondary through f connections · Includes plug connectors for heater interface and fan speed wiring · Designed for compatibility with specified Carrier HVAC unit models · Includes protective 5-amp fuse for transformer secondary circuit · Supports thermostat signaling for cooling, heating, and fan modes · Utilizes diode circuitry for DC power supply to relays and electric heat stages · Requires proper wiring and capping of un fan speed leads to prevent shorts · Replaces faulty motor control circuit boards to restore system operation\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"Default Title","offer_id":43672930353261,"sku":"12870","price":210.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/2419\/1853\/files\/s-l800_46741ce0-e0d9-4230-be4c-7adcbbf8c0c5.jpg?v=1763343542","url":"https:\/\/willardshvacsupply.com\/products\/carrier-042300-m-control-circuit-board-hvac-042398c","provider":"Willard's HVAC Supply","version":"1.0","type":"link"}