Bosch Refrigerator Thermal Fuse 00615792
The Thermal Fuse is a safety component installed in the defrost heater circuit of select Bosch refrigerators. Its primary function is to protect the appliance from overheating during the defrost cycle by cutting power to the heater if temperatures exceed safe limits.
If this fuse fails open, the defrost system will not operate properly, often leading to frost buildup and cooling issues.
✅ Key Details
Part Number: 00615792
Compatible Brands: Bosch
Type: Defrost Thermal Fuse / Thermal Cut-Off
Function: Protects the defrost heater circuit from overheating
Typical Location: Mounted near the evaporator assembly inside the freezer compartment
Original Equipment Manufacturer (OEM) Part: Yes
This part is designed specifically for use in select Bosch refrigerators. Always verify your model number before ordering to ensure compatibility.
B18ID80NLP, B18ID80NRP, B18IF70NSP, B18IF70NSP/07, B18IF800SP, B18IF800SP/01, B18IF800SP/02, B18IF800SP/03, B18IF800SP/08, B24ID80NLP, B24ID80NRP, B24IF70NSP, B24IR70NSP, CIR24P00, FID18P00, FID18P30, FID24P00, FID24P30, FIN18P30, FIN24P30, KDN30A00, KDN30A03, KDN30A10, KDN30A40, KDN30A43, KDN30A71, KDN30A73, KDN30V00, KDN30V00NE, KDN30V03, KDN30V03NE, KDN30X00, KDN30X00FF, KDN30X00GB, KDN30X01, T18BD80FL-07, T18BD80FLE, T18BF70FS-09, T18BF70FSE, T18ID80NLP/01, T18ID80NLP/04, T18ID80NLP/07, T18ID80NLP/08, T18ID80NLP/10, T18ID80NLP/12, T18ID80NLP/13, T18ID80NLP/14, T18ID80NLP/15, T18ID80NLP/17, T18ID80NLP/20, T18ID80NLP/21, T18ID80NLP/22, T18ID80NLP/27, T18ID80NLP/28, T18ID80NLP/32, T18ID80NLP/33, T18ID80NLP/35, T18ID80NLP/37, T18ID80NLP/38, T18ID80NLP/39, T18ID80NLP/40, T18ID80NLP/41, T18ID80NLP/42, T18ID80NLP/43, T18ID80NLP/46, T18ID80NLP/48, T18ID80NLP/99, T18ID80NRP/01, T18ID80NRP/04, T18ID80NRP/07, T18ID80NRP/08, T18ID80NRP/10, T18ID80NRP/15, T18ID80NRP/20, T18ID80NRP/38, T18ID80NRP/39, T18ID80NRP/40, T18ID80NRP/41, T18ID80NRP/42, T18ID80NRP/48, T18ID80NRP/99, T18IF70CSS-01, T18IF70FSS-01, T18IF70NSP-04, T18IF70PSS-01, T24BR70FS-03, T24BR70FSE, T24ID80NLP/33, T24ID80NLP/34, T24ID80NLP/36, T24ID80NLP/37, T24ID80NLP/38, T24ID80NLP/39, T24ID80NLP/40, T24ID80NLP/41, T24ID80NLP/45, T24ID80NLP/46, T24ID80NLP/47, T24ID80NRP/32, T24ID80NRP/37, T24ID80NRP/38, T24ID80NRP/39, T24ID80NRP/40, T24ID80NRP/41, T24ID80NRP/42, T24ID80NRP/47, T24IF70CSS-01, T24IF70FSS-01, T24IF70NSP/02, T24IF70NSP/03, T24IF70NSP/28, T24IF70NSP/29, T24IF70NSP/32, T24IF70NSP/34, T24IF70NSP/36, T24IF70NSP/41, T24IF70NSP/42, T24IF70NSP/43, T24IF70NSP/45, T24IF70NSP/46, T24IF70NSP/47, T24IF70NSP/99, T24IF70PSS/01, T24IR70CSS-01, T24IR70FSS-01, T24IR70NSP/01, T24IR70NSP/02, T24IR70NSP/03, T24IR70NSP/05, T24IR70NSP/06, T24IR70NSP/07, T24IR70NSP/08, T24IR70NSP/10, T24IR70NSP/11, T24IR70NSP/12, T24IR70NSP/15, T24IR70NSP/17, T24IR70NSP/18, T24IR70NSP/19, T24IR70NSP/20, T24IR70NSP/21, T24IR70NSP/23, T24IR70NSP/24, T24IR70NSP/25, T24IR70NSP/26, T24IR70NSP/27, T24IR70NSP/32, T24IR70NSP/33, T24IR70NSP/34, T24IR70NSP/35, T24IR70NSP/36, T24IR70NSP/37, T24IR70NSP/38, T24IR70NSP/39, T24IR70NSP/40, T24IR70NSP/42, T24IR70NSP/43, T24IR70PSS-01
⚠️ Common Issues This Part Can Solve
Replacing the thermal fuse can resolve several freezer and cooling-related problems, including:
Heavy frost buildup on the evaporator coil
Freezer overfreezing due to failed defrost cycle
Refrigerator section not cooling properly
Water leaking from freezer into fresh food compartment
Ice blocking airflow vents
Refrigerator running continuously
Defrost heater not activating because fuse is open
If the defrost heater and control system test properly but no heat is present during the defrost cycle, the thermal fuse may be the cause.
❓ FAQs (Frequently Asked Questions)
Q: How do I know if the thermal fuse is faulty?
A: If the evaporator is iced over and the defrost heater has continuity but does not receive power, the fuse may be open. Testing with a multimeter will confirm.
Q: Is this the same as a temperature sensor?
A: No. This is a one-time safety device. It does not regulate temperature — it only protects against overheating.
Q: Is it difficult to replace?
A: Moderate skill is required. Access typically involves removing freezer interior panels to reach the evaporator area. Otherwise, you may want to book a professional appliance repair in Vancouver to ensure proper installation and avoid further issues.
Q: What causes a thermal fuse to fail?
A: Excessive heat during defrost cycles, restricted airflow, or malfunctioning control components.
Q: Can I bypass the fuse temporarily?
A: No. This is a critical safety component and should never be bypassed. Replace only with the correct OEM part.
🛠️ Installation Tips
Disconnect power before servicing
Remove freezer panels carefully
Inspect heater and wiring for signs of overheating
Secure fuse properly to evaporator tubing
Test defrost operation after installation
NOTES:
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Canceled parts orders are subject to a 25% restocking fee
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Parts ordered by “Special Order Condition” are not refundable









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