Heil Quaker ICP R99G004 Board

The Heil Quaker ICP R99G004 is a genuine OEM replacement control fan timer board engineered for precision timing and fan speed regulation in residential furnaces and air handlers. For technicians working on Heil, Tempstar, or Comfortmaker units, this electronic control board is the direct replacement for ST9103A1036, ensuring seamless integration without the need for field modifications. This HVAC furnace control board manages the precise delay-on-make and delay-on-break cycles required to maximize heat exchanger efficiency and prevent short-cycling. Built to rigid factory specifications, the R99G004 ensures reliable communication between the thermostat and the blower motor, maintaining optimal HVAC performance across diverse climate conditions. When troubleshooting a Honeywell ST9103A1036 crossover, utilizing this OEM component eliminates common compatibility issues associated with universal aftermarket alternatives, providing the exact voltage and terminal logic required for ICP HVAC systems.

Key Benefits for Technicians:

• Direct OEM Compatibility: Engineered as the specific Honeywell ST9103A1036 cross reference to ensure terminal-to-terminal accuracy.
• Enhanced System Efficiency: Regulates the blower motor timing to extract maximum latent heat from the heat exchanger after the burner cycles off.
• Simplified Installation: Standardized pin connectors and terminal labeling reduce diagnostic time and labor costs during Heil Quaker part replacement.
• Industrial Grade Construction: Designed to withstand the high-temperature environments of residential furnace cabinets.

Common Technical Questions:

Is the R99G004 compatible with my existing Honeywell ST9103A series?
Yes, this board serves as the factory-authorized replacement for the ST9103A1036 and several earlier iterations used in ICP-manufactured equipment, maintaining the original timing parameters.

What symptoms indicate a failing fan timer board?
Common indicators include the blower motor failing to engage after a call for heat, the fan running continuously even when the thermostat is satisfied, or inconsistent fan delay timings.

Does this board require any special configuration?
As a genuine OEM replacement part, it is designed for plug-and-play installation; however, always verify your specific model's wiring schematic to ensure matching terminal jump settings if applicable.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.