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Robertshaw 780-787 Ignition Control Module HS780-34NR-306A

Rating:
5 5 8
8  Reviews Add Your Review
Special Price $119.59 Regular Price $137.53
In stock
SKU
780-787

The Robertshaw 780-787 HS780-34NR-306A ignition module is an advanced component designed to optimize ignition operations. Using cutting-edge technology, this module offers consistent performance across a wide range of heating systems. Its innovative design ensures efficient ignition cycles, which increases the overall efficacy of heating systems. The Robertshaw 780-787 HS780-34NR-306A ignition module is a popular option among heating system builders and professionals due to its durability and effectiveness. Its precise build and dependable functioning make it the preferred choice for consumers seeking high-quality ignition solutions. This ignition module provides unrivaled performance in both home and commercial settings, allowing heating systems to run smoothly.

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HVAC Controls & Electrical, Control Boards & Modules
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Controls the ignition sequence for applicable gas-fired equipment using a hot-surface ignition arrangement. The Robertshaw 780-787 Ignition Control receives a demand for heat and coordinates the operating stages associated with ignition and burner operation. The HS780-34NR-306A designation identifies the corresponding control reference for this model. The control manages the sequence between ignitor energization, gas valve operation, and flame sensing, allowing the equipment to proceed through its designated combustion process.

Ignition Sequencing:
The control establishes the order of electrical events required during a call for heat. It governs the transition from the initial demand to ignitor operation and then advances through the subsequent stages assigned to the burner-start process. Each stage follows the control's programmed sequence, allowing one operating event to proceed before the next is initiated. This framework addresses the order and progression of ignition-related actions without evaluating whether a flame is present.

Flame Monitoring:
The sensing circuit evaluates the flame signal independently after the ignition process reaches the combustion stage. A detected signal provides the control with information about flame presence while the burner is operating. The monitoring function continues as part of the combustion cycle and concerns signal recognition rather than establishing the order of startup events.

Replacement Guidelines:
Replacement requires matching the ignition control's electrical configuration, ignition sequence requirements, flame-sensing arrangement, connection requirements, and applicable furnace control specifications. The Robertshaw 780-787 Ignition Control HS780-34NR-306A replacement should also suit the existing ignition system and associated burner-control components.

Common Failure Symptoms:

  • The ignition sequence does not begin.
  • Burner operation does not proceed as expected.
  • Flame detection becomes inconsistent.
  • Heating operation becomes intermittent.
  • The control sequence is interrupted.

Equipment Compatibility:
The Robertshaw 780-787 is intended for applicable gas-fired equipment using the specified hot-surface ignition control arrangement. Verify the equipment model number, existing component identification, and manufacturer's parts documentation before purchasing.

Technical Specifications:
Brand: Robertshaw
Part Number: 780-787
Voltage: 120V
Model: HS780-34NR-306A
Product Type: Ignition Control

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Product Questions (7)
Customer Questions
What maintenance is required for the Robertshaw 780-787 Ignition Control Module?

Inspect wiring connections regularly to ensure they are secure and free from corrosion for reliable ignition performance. Check the module for dust buildup or heat damage and clean gently if needed. Always disconnect power before servicing and replace the module if ignition failures or repeated lockouts occur.

What are common issues with the Robertshaw 780-787 Ignition Control Module?

  • Failure to ignite the burner.
  • Intermittent spark or ignition.
  • Loose or corroded electrical connections.
  • Faulty control signals.

How does the Robertshaw 780-787 know whether burner ignition has been established?

It receives feedback from the flame-sensing circuit to determine whether the required flame condition has been established.

Where does the Robertshaw 780-787 fit within a gas heating system?

It serves as the electronic control point between the system's operating demand and the ignition, flame-sensing, and burner-control sequence.

What role does the Robertshaw 780-787 play during burner ignition?

It manages the electronic ignition sequence in gas-fired heating equipment, coordinating the steps required to establish burner operation.

What happens after the Robertshaw 780-787 detects the required flame signal?

It uses the flame signal as part of its control sequence to coordinate continued burner operation.

How can I confirm the Robertshaw 780-787 Ignition Control before purchasing?

Match the Robertshaw part number 780-787 and Ignition Control designation with the existing control and applicable gas-fired heating equipment information.

Installation Steps

Step1: Turn off power and gas supply to the appliance before beginning.

Step2: Access the control compartment and disconnect wiring from the old ignition module, noting positions.

Step3: Remove the old module, install the new one, and reconnect all wires to corresponding terminals.

Step4: Restore power and gas, then test ignition and operation to confirm proper and safe function.