Unlocking the Kwikset 660: Troubleshooting Tips and Techniques: Mr. Locksmith explores the popular Quick Set 660 lock, focusing on its five-pin configuration. We discuss how to identify and troubleshoot common problems customers encounter, such as the key spinning 360 degrees or jamming. Learn how to diagnose whether the issue lies with the tailpiece or bolt, and understand the different lock and key issues that can arise. (Source: Terry Whin-Yates)
Unlocking the Kwikset 660: Troubleshooting Tips and Techniques
Mr. Locksmith Automotive (604) 259-7617
Expert Kwikset Lock Repair and Lockout Services
At Mr. Locksmith, we frequently service the Kwikset 660, one of the most common residential deadbolts in homes today. This popular five-pin lock is well-known to our locksmith technicians, and we can quickly identify whether it’s a 5-pin or 6-pin configuration using our professional lock picking techniques.
If you’re locked out of your house or experiencing key issues with your Kwikset lock, there are typically two common problems:
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Key Spins Freely: If your key turns continuously without unlocking the door, this usually means the tailpiece is broken or there’s a problem with the deadbolt mechanism. In this case, picking the lock won’t help—our locksmiths will inspect and repair the internal components on-site.
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Key Won’t Turn or Insert: If the key gets stuck, jams, or won’t insert at all, it could be a damaged key or an issue with the lock cylinder itself. Our emergency locksmiths will diagnose the problem and either repair or rekey the lock to restore access.

Whether you’re dealing with a lockout, need lock repair, or want to rekey your Kwikset deadbolt, Mr. Locksmith provides fast, professional, and affordable mobile locksmith services.
he Kwikset 660 is one of the most popular and widely-used locks, recognized for its reliability and ease of use. Known as a five-pin lock, the Kwikset 660 can sometimes come with its own set of issues that require troubleshooting. In this guide, Mr. Locksmith offers insights into the common problems users might face and effective solutions for each.
Understanding the Kwikset 660
The Kwikset 660 lock, widely recognized for its practicality, is typically a five-pin mechanism. Though there is a variation that includes six pins, the five-pin configuration is the more frequently encountered version. With experience, locksmiths can identify the pin count quite intuitively.
Common Troubleshooting Issues
If a customer’s lock malfunctions, it’s crucial to distinguish the type of problem to resolve it efficiently. Below are two frequent issues encountered with the Kwikset 660 lock:
- Key Spinning 360 DegreesOne common problem is when the key spins continuously, completing a 360-degree turn without unlocking the door. This phenomenon usually indicates that the tailpiece has detached or there’s an issue with the bolt. In such cases, traditional picking methods won’t be effective since the key is simply rotating without engaging the lock mechanism.
- Key Jamming IssuesAnother issue is key jamming: this either occurs when the key is partially inserted and jams or when it’s impossible to insert the key at all. Such problems point to potential issues with the key itself or with the internal lock mechanism.
Addressing Key Spinning
If the key spins freely, homeowners should first consult a locksmith to inspect the tailpiece and bolt for disassembly and wear. Expert intervention ensures that the components are correctly aligned and functioning.

Resolving Key Jamming
For key jamming issues, it’s recommended to first check the key for any obvious damage or wear. If the key seems intact, it’s advisable to have a locksmith examine the internal pins and security cylinders within the lock. This thorough inspection can reveal alignment issues or obstructions causing the jamming.
Conclusion
Understanding your Kwikset 660 lock and being aware of these common troubleshooting problems can save time and effort. While some minor issues might be addressed through quick fixes, always consider consulting a professional locksmith to ensure your lock is secure and functioning optimally. Mr. Locksmith stands ready to assist with expert advice and repair solutions.
This detailed guide aims to help you maintain the security and reliability of your home with the Kwikset 660. Happy securing! Source: Terry Whin-Yates Mr. Locksmith Linkedin
🔐 Call Mr. Locksmith today for expert Kwikset lock repair, house lockout assistance, and emergency locksmith service near you!
Mr. Locksmith Automotive (604) 259-7617
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