Toshiba
Float Valve Seal Failure
Steam or hot water spurts from around the float valve area during pressure buildup.
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Possible Causes
Damaged or hardened float valve silicone cap, Debris preventing float from sealing, Worn float valve seat in lid
How to Fix / Troubleshooting
Safety: Keep face and hands away from the float valve during operation.
- 1. Clean float valve: Remove the float valve pin and silicone cap. Clean all parts and the valve seat in the lid.
- 2. Inspect silicone cap: Replace if cracked, hardened, or misshapen.
- 3. Reassemble correctly: Install the float valve components in the correct order as per Toshiba manual.
- 4. Test with water: Run a water-only pressure cycle and observe the float area for leaks.
Do not plug the float valve hole; it is a critical safety component.
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Repair Difficulty
Very Easy
1/5
Required Part
Float Valve & Silicone Cap
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