Lochinvar & A.O. Smith 100093810 Switch
The Lochinvar & A.O. Smith 100093810 Switch is a critical safety component designed specifically for natural gas water heaters, including the high-volume FG40T34 residential model. As a primary water heater door switch, this part functions as an electrochemical interlock, ensuring the burner assembly only receives fuel when the access door is fully seated and secured. This OEM replacement part is engineered to meet the precise tolerances of Lochinvar and A.O. Smith gas units, preventing burner operation during maintenance or in the event of a loose combustion chamber door. For technicians in the field, this switch is the standard solution for resolving pilot lighting issues or "no heat" calls linked to faulty door sensors. Utilizing durable 100093810 technical specifications, this part provides the reliable continuity required by the gas control valve to maintain a safe flame circuit. Proper installation of this natural gas safety switch is essential for maintaining the operational integrity of the appliance and preventing hazardous gas accumulation in the burner compartment.
Key Benefits- Precise Compatibility: Engineered as a direct fit for A.O. Smith FG40T34 and equivalent Lochinvar natural gas series.
- Safety Interlock: Effectively disables the gas burner if the outer door is not sealed, protecting against flame rollout.
- OEM Reliability: Genuine Lochinvar 100093810 construction ensures consistent electrical performance under high-temperature conditions.
- Direct Replacement: Simplifies the repair process for contractors by replacing retired part numbers 6910811 and 9007833005.
How do I know if the 100093810 switch is faulty?
If the water heater's status light does not flash or the pilot refuses to stay lit even with a good thermocouple, use a multimeter to check for continuity across the door switch terminals while the button is depressed. No continuity indicates a failed internal contact.
Is this switch compatible with LP (Propane) units?
This specific model is calibrated for natural gas FG40T34 units. Always verify your specific model's parts list, as LP versions may require different pressure or thermal ratings for the safety circuit.
Can I bypass the door switch for testing?
Bypassing safety controls is never recommended for permanent operation. Use the 100093810 original equipment to ensure the system's safety logic remains intact and compliant with local codes.
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: $113.10
-65%$113.10
$39.58Lochinvar & A.O. Smith 100093810 Switch
The Lochinvar & A.O. Smith 100093810 Switch is a critical safety component designed specifically for natural gas water heaters, including the high-volume FG40T34 residential model. As a primary water heater door switch, this part functions as an electrochemical interlock, ensuring the burner assembly only receives fuel when the access door is fully seated and secured. This OEM replacement part is engineered to meet the precise tolerances of Lochinvar and A.O. Smith gas units, preventing burner operation during maintenance or in the event of a loose combustion chamber door. For technicians in the field, this switch is the standard solution for resolving pilot lighting issues or "no heat" calls linked to faulty door sensors. Utilizing durable 100093810 technical specifications, this part provides the reliable continuity required by the gas control valve to maintain a safe flame circuit. Proper installation of this natural gas safety switch is essential for maintaining the operational integrity of the appliance and preventing hazardous gas accumulation in the burner compartment.
Key Benefits- Precise Compatibility: Engineered as a direct fit for A.O. Smith FG40T34 and equivalent Lochinvar natural gas series.
- Safety Interlock: Effectively disables the gas burner if the outer door is not sealed, protecting against flame rollout.
- OEM Reliability: Genuine Lochinvar 100093810 construction ensures consistent electrical performance under high-temperature conditions.
- Direct Replacement: Simplifies the repair process for contractors by replacing retired part numbers 6910811 and 9007833005.
How do I know if the 100093810 switch is faulty?
If the water heater's status light does not flash or the pilot refuses to stay lit even with a good thermocouple, use a multimeter to check for continuity across the door switch terminals while the button is depressed. No continuity indicates a failed internal contact.
Is this switch compatible with LP (Propane) units?
This specific model is calibrated for natural gas FG40T34 units. Always verify your specific model's parts list, as LP versions may require different pressure or thermal ratings for the safety circuit.
Can I bypass the door switch for testing?
Bypassing safety controls is never recommended for permanent operation. Use the 100093810 original equipment to ensure the system's safety logic remains intact and compliant with local codes.
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.
Product Information
Product Information
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Description
The Lochinvar & A.O. Smith 100093810 Switch is a critical safety component designed specifically for natural gas water heaters, including the high-volume FG40T34 residential model. As a primary water heater door switch, this part functions as an electrochemical interlock, ensuring the burner assembly only receives fuel when the access door is fully seated and secured. This OEM replacement part is engineered to meet the precise tolerances of Lochinvar and A.O. Smith gas units, preventing burner operation during maintenance or in the event of a loose combustion chamber door. For technicians in the field, this switch is the standard solution for resolving pilot lighting issues or "no heat" calls linked to faulty door sensors. Utilizing durable 100093810 technical specifications, this part provides the reliable continuity required by the gas control valve to maintain a safe flame circuit. Proper installation of this natural gas safety switch is essential for maintaining the operational integrity of the appliance and preventing hazardous gas accumulation in the burner compartment.
Key Benefits- Precise Compatibility: Engineered as a direct fit for A.O. Smith FG40T34 and equivalent Lochinvar natural gas series.
- Safety Interlock: Effectively disables the gas burner if the outer door is not sealed, protecting against flame rollout.
- OEM Reliability: Genuine Lochinvar 100093810 construction ensures consistent electrical performance under high-temperature conditions.
- Direct Replacement: Simplifies the repair process for contractors by replacing retired part numbers 6910811 and 9007833005.
How do I know if the 100093810 switch is faulty?
If the water heater's status light does not flash or the pilot refuses to stay lit even with a good thermocouple, use a multimeter to check for continuity across the door switch terminals while the button is depressed. No continuity indicates a failed internal contact.
Is this switch compatible with LP (Propane) units?
This specific model is calibrated for natural gas FG40T34 units. Always verify your specific model's parts list, as LP versions may require different pressure or thermal ratings for the safety circuit.
Can I bypass the door switch for testing?
Bypassing safety controls is never recommended for permanent operation. Use the 100093810 original equipment to ensure the system's safety logic remains intact and compliant with local codes.
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.
