1017207 Nordyne DC Heater Relay Kit Product Overview The 1017207 relay kit is an OEM 9-pin SPST heater relay designed for Nordyne DC heating systems. It features a 24 VDC coil and 30 A contact capacity, built for reliable, long-term operation in residential and light commercial HVAC applications. Cross-Reference Part Numbers OEM Part Number Replaces / Also Known As 1017207 622671, 622210, 622210R Compatibility Nordyne DC electric furnaces (E5EBxxxHB series) Heat pump systems with DC heater control option Private-label units from select OEMs requiring a 9-pin SPST, 24 VDC heater relay Technician Notes Always disconnect all power sources and allow capacitors to fully discharge before servicing. Wear an ESD wrist strap and handle the relay by its housing to prevent static damage. Label or photograph the existing wiring and socket orientation for accurate reinstallation. Verify 24 VDC at the relay coil pins during a heat call before replacing. Gently seat the new relay in the 9-pin base until fully engaged—do not force. After installation, energize a heat call and confirm the relay actuates crisply and the heater elements receive power. Inspect for arcing or overheating at contact points; reseat or clean as needed. Additional Resources OEM wiring diagram & installation manual (PDF) Printable cross-reference cheat sheet for Nordyne relay kits Step-by-step video tutorial: DC heater relay replacement
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