100076520 A.O. Smith K Motor – Fan Motor for Takagi Water Heaters
Product Overview
The A.O. Smith 100076520 is a high-quality replacement fan motor designed for Takagi T-K1S water heaters (both LP and NG models). This motor ensures reliable airflow for proper combustion, helping your water heater operate efficiently and safely.
This motor replaces older models EKN21 and 320273-608.
✅ Key Features
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✅ Direct Replacement: Fits Takagi T-K1S (LP/NG) water heaters
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✅ Replaces Older Parts: EKN21, 320273-608
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✅ Reliable Performance: Ensures proper airflow for combustion
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✅ OEM Quality: Manufactured to original equipment specifications
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✅ Durable Construction: Long-lasting, designed for continuous operation
⚙️ Technical Specifications
| Specification | Details |
| Model |
100076520 |
| Replacement For |
EKN21, 320273-608 |
| Application |
Takagi T-K1S LP/NG water heaters |
| Function |
Fan Motor |
⚠️ Common Symptoms of a Failing Fan Motor
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⚠️ Water heater fails to ignite
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⚠️ Unusual noise or vibration from the fan
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⚠️ Burner flame instability or intermittent operation
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⚠️ Motor does not spin when the system calls for heat
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⚠️ Overheating or tripped safety switches
Replacing a faulty fan motor restores proper airflow, combustion, and system safety.
💡 Shopping Tips
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🛠️ Confirm Water Heater Model: Ensure your unit is a Takagi T-K1S LP or NG model
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🔄 Check Replacement Compatibility: Verify older part numbers EKN21 or 320273-608
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🧰 Installation Guidance: Disconnect power and fuel supply before installing
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🧯 Safety Reminder: Inspect wiring and fan connections for wear when replacing the motor
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🧭 Maintenance Tip: Clean fan blades during installation to prevent dust buildup
❓ Frequently Asked Questions (FAQ)
Q1: Will this motor work on all Takagi T-K1S models?
A1: Yes, it is compatible with both LP and NG versions of the T-K1S.
Q2: Is this an OEM A.O. Smith part?
A2: Yes, 100076520 is a genuine A.O. Smith replacement motor.
Q3: Can I reuse the existing motor wiring harness?
A3: If undamaged, the wiring harness can be reused. Always inspect connections for wear or corrosion.