SSN6005 SUPCO WATER HEATER IGNITER – 80V SILICON NITRIDE UPGRADE
Product Overview
The SUPCO SSN6005 Water Heater Igniter is a high-performance silicon nitride hot surface igniter designed as a direct drop-in replacement for multiple AO Smith water heater igniters, including 9003626005. Built for durability and fast ignition, this 80-volt igniter reaches operating temperature in under 17 seconds to restore reliable burner startup and consistent water heater operation.
Compared to traditional silicon carbide igniters, the SSN6005 offers improved strength, longer service life, and greater resistance to thermal shock—making it an ideal upgrade for residential and light commercial gas water heaters.
✅ Key Features
✅ Direct drop-in replacement for compatible AO Smith igniters
✅ Advanced silicon nitride construction for superior durability
✅ Fast heat-up time for reliable ignition
✅ Handles high temperatures and thermal stress
✅ Ideal upgrade over standard silicon carbide igniters
✅ Improves ignition reliability and startup performance
📋 Specifications
| Specification | Details |
| Part Number |
SSN6005 |
| Manufacturer |
SUPCO |
| Product Type |
Hot Surface Igniter |
| Voltage Rating |
80 Volt |
| Material |
Silicon Nitride |
| Time to Temperature |
< 17 seconds @ 120 ±1.0 VAC |
| Resistance |
34 – 64 Ohms |
| Minimum Temperature |
2192°F / 1200°C @ 98 Volts |
| Maximum Temperature |
2732°F / 1500°C @ 132 Volts |
| Steady State Current |
0.8 – 2.0 Amps Max @ 120V |
| Application |
Gas Water Heaters |
🔁 Replaces / Cross Reference
This igniter replaces the following AO Smith part numbers:
-
100109355
-
9003626005
-
9003627005
-
9003627115
-
9004041005
-
9004602215
🚨 Common Symptoms This Part Fixes
-
Water heater fails to ignite
-
Intermittent burner ignition
-
Repeated ignition lockouts
-
Cracked or broken igniter
-
Delayed startup or no flame
❓ Frequently Asked Questions (FAQ)
Q: Is this a direct replacement for AO Smith 9003626005?
A: Yes, the SSN6005 is a direct drop-in replacement for 9003626005 and the other listed part numbers.
Q: What makes silicon nitride better than standard igniters?
A: Silicon nitride igniters are stronger, more durable, and last longer than traditional silicon carbide igniters.
Q: Does this igniter require any modifications?
A: No. It installs directly with existing connections when replacing compatible igniters.
Q: How quickly does it reach ignition temperature?
A: Less than 17 seconds under normal operating conditions.
Q: Is this suitable for residential water heaters?
A: Yes. It is designed for residential and light commercial gas water heaters.
🛒 Shopping Tips
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Always verify your existing igniter part number before ordering
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Inspect wiring and connectors for heat damage during replacement
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Replace igniters proactively if cracked or showing wear
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Silicon nitride igniters offer longer service life and better reliability