Description
The Honeywell S8801A1118 is a Direct Spark Ignition (DSI) module engineered for dependable burner ignition control in residential and light commercial heating appliances. Featuring a 4-second ignition trial period and 100% lockout on ignition failure, this module delivers a precise, safety-focused ignition sequence that shuts down the system completely if flame is not established — preventing unsafe gas accumulation and protecting both equipment and occupants.
Key Features
- Direct Spark Ignition (DSI) control module for gas-fired heating appliances
- 4-second ignition trial period for rapid burner startup
- 100% lockout on ignition failure — system shuts down completely if flame is not proven
- Proven flame sensing technology for accurate and reliable burner monitoring
- Compact, board-mount design for straightforward OEM and replacement installations
- Compatible with a wide range of gas furnaces, unit heaters, and other DSI-equipped appliances
How It Works
Upon a call for heat, the S8801A1118 energizes the gas valve and simultaneously generates a high-voltage spark at the burner. If flame is not sensed within the 4-second trial period, the module enters 100% lockout — cutting power to the gas valve and requiring a manual reset or power interruption to restart. This fail-safe design ensures that unburned gas cannot continue to flow, meeting the highest standards of combustion safety.
Typical Applications
- Residential gas furnaces
- Commercial unit heaters
- Gas-fired boilers and heating appliances equipped with DSI ignition systems
- OEM replacement in Honeywell DSI-controlled heating equipment
Why Choose the Honeywell S8801A1118?
As a genuine Honeywell ignition module, the S8801A1118 is built to exacting quality standards and is a trusted choice for HVAC technicians and contractors performing warranty-compliant repairs and replacements. Its straightforward 100% lockout logic simplifies troubleshooting — a locked-out module is a clear diagnostic signal that the ignition system requires attention.
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