Johnson Controls G777MHA-1 NAT/LP Gas Ignition Control Box 24V

SKU: G777MHA-1 1-G777MHA-1 Brand:
Johnson Controls
Availability:
In Stock
(0)
$152.40 Price reduced from $322.88
Save $170.48
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Specifications:

  • No Longer Johnson Control,
  • 1 Trial 50 Sec No Retry, 24V, Johnson, 3 X 4-3/4 Blue Box
  • Replaced With Black Box, Baso Bg1600M20Ep-1Ad

Description

The Johnson Controls G777MHA-1 NAT/LP Gas Ignition Control Box 24V functions as a control system for heating applications that use gas ignition systems. The partfunctions at 24V to provide safe ignition operations through its control of gas flow and ignition timing functions. The BASO BG1600M20EP-1AD black box now serves as the replacement model for the original G777MHA-1 NAT/LP Gas Ignition Control Box 24V. The G777MHA-1 provides perfect operation for which use natural or LP gas through its efficient ignition sequence and safety features that deliver reliable performance while minimizing system downtime. This operates frequently in furnaces alongside other gas-fired heating equipment.

Dimensions:

  • Weight: 0.8 lbs
  • Length: 7 in
  • Height: 3 in
  • Width: 5 in

GARLAND:

1935601 4528855 4602646 CK02-008

Step1: Turn off gas supply and disconnect electrical power completely.

Step2: Open control panel and place existing ignition module.

Step3: Label and disconnect all wiring connections.

Step4: Remove mounting screws and take out old control box.

Step5: Install new ignition control box in same position and secure firmly.

Step6: Reconnect wires according to wiring diagram and terminals.

Step7: Restore power and gas, then test ignition cycle safely.

  • What maintenance is required for the Johnson Controls G777MHA-1 Ignition Control Box?

    Keep ignition control box dry and free from dust. Inspect wiring connections regularly for corrosion or looseness. Ensure proper voltage supply and secure mounting to prevent vibration damage during operation.

  • What are common issues with the Johnson Controls G777MHA-1 Ignition Control Box?

    • Failure to ignite gas due to control board malfunction or power interruption.
    • Intermittent ignition cycles caused by wiring faults or loose terminal connections.
    • No spark output or inconsistent flame sensing leading to burner shutdown.

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