| Brand | Unbranded |
| Model | HK42FZ034 Replacement |
| Power Source | Gas / Electric Furnace |
| Type | Furnace Control Board |
| Voltage | 24 V / 120 V |
No Power: Thermostat loses connection or status LED is unlit. Wiring: Take a clear photo of your original wiring setup before disconnecting for easy reference. Ignition Failure: System powers up but fails to light the burners.