Lochinvar & A.O. Smith 100167804 Board
The Lochinvar & A.O. Smith 100167804 Integrated Control Board is the primary OEM replacement part for the Armor AW400 condensing water heater series. As a veteran-grade HVACR control module, this board manages the critical sequence of operation, including the 10-second prepurge cycle, spark-to-flame trial for ignition, and continuous flame rectification. It acts as the master processor for ignition control and temperature regulation, ensuring the blower, gas valve, and pump relays operate within precise tolerances. When troubleshooting lockout codes or intermittent ignition failure on an AWN400PM, verifying the integrated control AW400 is essential. This board is engineered to interface directly with the user interface control and monitored safety switches, such as the air pressure and blocked drain sensors. Replacing a faulted 100167804 restores modulating burner efficiency and system reliability, meeting the high-demand requirements of commercial and residential hydronic applications. This high-authority boiler control circuit board replaces legacy part numbers RLY40040, RLY30048, and 100167954.
Key Benefits- Direct OEM Compatibility: Specifically designed for Lochinvar Armor AW400 and A.O. Smith equivalent models.
- Comprehensive System Management: Coordinates the ignition sequence, blower speed, and pump relay transitions.
- Enhanced Troubleshooting: Facilitates rapid error code identification for faster field service and reduced downtime.
- Precision Modulation: Optimizes energy utilization by managing fuel-to-air ratios for peak efficiency.
- Safety Logic: Monitors high-limit and flow switches to prevent operation under unsafe conditions.
What are the symptoms of a failing 100167804 control board?
Common indicators include repeated ignition lockouts, failure to initiate the prepurge cycle, or the unit failing to recognize a call for heat despite closed thermostat contacts.
Can I use this board for the AW151 through AW286 models?
No. The 100167804 is specifically calibrated for the AW400 system. Smaller units typically require the 100167803 module to ensure correct blower and gas valve timing.
Does this control board replace older RLY series numbers?
Yes, this integrated control is the current manufacturer-authorized replacement for original part numbers RLY40040 and RLY30048.
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.
Original: $716.39
-65%$716.39
$250.74Lochinvar & A.O. Smith 100167804 Board
The Lochinvar & A.O. Smith 100167804 Integrated Control Board is the primary OEM replacement part for the Armor AW400 condensing water heater series. As a veteran-grade HVACR control module, this board manages the critical sequence of operation, including the 10-second prepurge cycle, spark-to-flame trial for ignition, and continuous flame rectification. It acts as the master processor for ignition control and temperature regulation, ensuring the blower, gas valve, and pump relays operate within precise tolerances. When troubleshooting lockout codes or intermittent ignition failure on an AWN400PM, verifying the integrated control AW400 is essential. This board is engineered to interface directly with the user interface control and monitored safety switches, such as the air pressure and blocked drain sensors. Replacing a faulted 100167804 restores modulating burner efficiency and system reliability, meeting the high-demand requirements of commercial and residential hydronic applications. This high-authority boiler control circuit board replaces legacy part numbers RLY40040, RLY30048, and 100167954.
Key Benefits- Direct OEM Compatibility: Specifically designed for Lochinvar Armor AW400 and A.O. Smith equivalent models.
- Comprehensive System Management: Coordinates the ignition sequence, blower speed, and pump relay transitions.
- Enhanced Troubleshooting: Facilitates rapid error code identification for faster field service and reduced downtime.
- Precision Modulation: Optimizes energy utilization by managing fuel-to-air ratios for peak efficiency.
- Safety Logic: Monitors high-limit and flow switches to prevent operation under unsafe conditions.
What are the symptoms of a failing 100167804 control board?
Common indicators include repeated ignition lockouts, failure to initiate the prepurge cycle, or the unit failing to recognize a call for heat despite closed thermostat contacts.
Can I use this board for the AW151 through AW286 models?
No. The 100167804 is specifically calibrated for the AW400 system. Smaller units typically require the 100167803 module to ensure correct blower and gas valve timing.
Does this control board replace older RLY series numbers?
Yes, this integrated control is the current manufacturer-authorized replacement for original part numbers RLY40040 and RLY30048.
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.
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Description
The Lochinvar & A.O. Smith 100167804 Integrated Control Board is the primary OEM replacement part for the Armor AW400 condensing water heater series. As a veteran-grade HVACR control module, this board manages the critical sequence of operation, including the 10-second prepurge cycle, spark-to-flame trial for ignition, and continuous flame rectification. It acts as the master processor for ignition control and temperature regulation, ensuring the blower, gas valve, and pump relays operate within precise tolerances. When troubleshooting lockout codes or intermittent ignition failure on an AWN400PM, verifying the integrated control AW400 is essential. This board is engineered to interface directly with the user interface control and monitored safety switches, such as the air pressure and blocked drain sensors. Replacing a faulted 100167804 restores modulating burner efficiency and system reliability, meeting the high-demand requirements of commercial and residential hydronic applications. This high-authority boiler control circuit board replaces legacy part numbers RLY40040, RLY30048, and 100167954.
Key Benefits- Direct OEM Compatibility: Specifically designed for Lochinvar Armor AW400 and A.O. Smith equivalent models.
- Comprehensive System Management: Coordinates the ignition sequence, blower speed, and pump relay transitions.
- Enhanced Troubleshooting: Facilitates rapid error code identification for faster field service and reduced downtime.
- Precision Modulation: Optimizes energy utilization by managing fuel-to-air ratios for peak efficiency.
- Safety Logic: Monitors high-limit and flow switches to prevent operation under unsafe conditions.
What are the symptoms of a failing 100167804 control board?
Common indicators include repeated ignition lockouts, failure to initiate the prepurge cycle, or the unit failing to recognize a call for heat despite closed thermostat contacts.
Can I use this board for the AW151 through AW286 models?
No. The 100167804 is specifically calibrated for the AW400 system. Smaller units typically require the 100167803 module to ensure correct blower and gas valve timing.
Does this control board replace older RLY series numbers?
Yes, this integrated control is the current manufacturer-authorized replacement for original part numbers RLY40040 and RLY30048.
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.
