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8407-039 OBSOLETE
- Transformer 120/24V 40VA
Bard part 8407-039 is an OEM control transformer designed to step down 120V line power to 24V control voltage at 40VA, supplying stable low-voltage power for relays, contactors, and other control-circuit components in Bard wall-mount HVAC equipment. When a unit has no 24V output, intermittent control power, or a burnt transformer smell, replacing the transformer is a common and effective repair, but you should always confirm the primary voltage feeding the transformer and match the VA rating to the original to avoid nuisance failures. Because control transformers can share similar ratings across multiple models, verify the part number and wiring terminals against your Bard unit schematic before ordering to ensure correct fit and safe operation.
Official replacement(s):
8407-045
- Transformer 120/24V 40VA