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8201-129 OBSOLETE
- DEFROST CONTROL BOARD
The Bard 8201-129 defrost control board is an OEM heat pump control used on select Bard wall-mount and packaged heat pump applications to manage the defrost sequence when outdoor coil conditions call for it, helping the unit clear frost and return to heating automatically. This board works with a coil temperature sensor and includes service-friendly functions such as selectable defrost timing options and diagnostic indication to support accurate troubleshooting, while also adding improved pressure-switch fault recognition compared with several earlier Bard defrost controls it commonly replaces. If you are matching parts in the field, verify the unit model and existing board number before ordering to ensure proper wiring and correct defrost cycle timing for the equipment.
Official replacement(s):
8620-223
- Defrost Board Replacement Kit