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title: Troubleshooting, Repairs, and Modifications | Help Center
description: Troubleshooting, Repairs, and Modifications
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1. [Help Center](https://knowledge.k2sci.com/knowledge)
2. [Troubleshooting, Repairs, and Modifications](https://knowledge.k2sci.com/knowledge/troubleshooting-repairs-and-modifications)

# Troubleshooting, Repairs, and Modifications

- [Troubleshooting: Why is my refrigerator or freezer not cooling?](https://knowledge.k2sci.com/knowledge/why-is-the-unit-not-cooling)

## Doors

- [How do you swap/switch the door swing on a K202, K204, K210 right to left?](https://knowledge.k2sci.com/knowledge/how-do-you-swap/switch-the-door-on-a-k202-k204-k210-right-to-left)
- [How to repair a door hinge on a high performance unit](https://knowledge.k2sci.com/knowledge/how-repair-a-door-hinge-on-a-high-performance-unit)
- [How to repair a sliding door on a K249GDR-SD](https://knowledge.k2sci.com/knowledge/how-to-repair-a-sliding-door-on-a-k249gdr-sd)
- [How to do a door swap on a 25 cu. ft. unit](https://knowledge.k2sci.com/knowledge/how-to-do-a-door-swap-on-a-25-cu.-ft.-unit)
- [How to relieve the internal pressure to open to door on an Ultra Low Temperature (ULT) Freezer](https://knowledge.k2sci.com/knowledge/how-to-relieve-the-internal-pressure-to-open-to-door-on-an-ultra-low-temperature-freezer)
- [How to align the door on a K204 unit](https://knowledge.k2sci.com/knowledge/how-to-align-the-door-on-a-k204-unit)
- [How to swap a door from left to right hand on a value performance unit](https://knowledge.k2sci.com/knowledge/how-to-swap-a-door-from-left-to-right-hand-on-a-value-performance-unit)

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## Gaskets

- [How to install a door gasket on a value performance unit](https://knowledge.k2sci.com/knowledge/how-to-install-a-door-gasket-on-a-value-performance-unit)
- [How to check to see if you have a bad gasket](https://knowledge.k2sci.com/knowledge/how-to-check-to-see-if-you-have-a-bad-gasket)

- [Preventative Maintenance](https://knowledge.k2sci.com/knowledge/preventative-maintenance#main-content)

    - [Defrosting](https://knowledge.k2sci.com/knowledge/preventative-maintenance#defrosting)
    - [Condenser](https://knowledge.k2sci.com/knowledge/preventative-maintenance#condenser)
- [Manuals](https://knowledge.k2sci.com/knowledge/manuals)
- [General Product Information](https://knowledge.k2sci.com/knowledge/general-product-information#main-content)

    - [Value Performance](https://knowledge.k2sci.com/knowledge/general-product-information#value-performance)
    - [High Performance](https://knowledge.k2sci.com/knowledge/general-product-information#high-performance)
    - [Ultra Low Freezer (ULT)](https://knowledge.k2sci.com/knowledge/general-product-information#ultra-low-freezer-ult)
    - [Blood & Plasma](https://knowledge.k2sci.com/knowledge/general-product-information#blood-plasma)
    - [Chromatography](https://knowledge.k2sci.com/knowledge/general-product-information#chromatography)
    - [Life Science Cold Storage Guide](https://knowledge.k2sci.com/knowledge/general-product-information#life-science-cold-storage-guide)
- [VitalLog Products](https://knowledge.k2sci.com/knowledge/vitallog-products#main-content)

    - [Battery Backup](https://knowledge.k2sci.com/knowledge/vitallog-products#battery-backup)
- [Policies](https://knowledge.k2sci.com/knowledge/policies)
- [Settings & Parameters](https://knowledge.k2sci.com/knowledge/settings-parameters#main-content)

    - [Value Performance](https://knowledge.k2sci.com/knowledge/settings-parameters#value-performance)
    - [High Performance](https://knowledge.k2sci.com/knowledge/settings-parameters#high-performance)
    - [Ultra Low Freezer (ULT)](https://knowledge.k2sci.com/knowledge/settings-parameters#ultra-low-freezer-ult)
- [Troubleshooting, Repairs, and Modifications](https://knowledge.k2sci.com/knowledge/troubleshooting-repairs-and-modifications#main-content)

    - [Doors](https://knowledge.k2sci.com/knowledge/troubleshooting-repairs-and-modifications#doors)
    - [Gaskets](https://knowledge.k2sci.com/knowledge/troubleshooting-repairs-and-modifications#gaskets)
- [Shipping](https://knowledge.k2sci.com/knowledge/shipping)
- [Setup](https://knowledge.k2sci.com/knowledge/setup#main-content)

    - [New unit setup](https://knowledge.k2sci.com/knowledge/setup#new-unit-setup)
    - [Data Logger](https://knowledge.k2sci.com/knowledge/setup#data-logger)
- [Temperature Monitoring](https://knowledge.k2sci.com/knowledge/temperature-monitoring)

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