
HK02AA400B Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $29.90 | Condition is New – Open box, 1 - Robertshaw HK02AA400B Pressure Stat Switch for Carrier, Trane, Etc - NEW OEM, FREE SHIPPING | 100.0% |
![]() | $39.00 | Condition is New – Open box, ROBERTSHAW HK02AA400B 120VAC NSNP, shipping cost = $16.50 | 99.9% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $29.99 | Top Pick! Condition is New, NEW IN BOX ROBERTSHAW HK02AA400B PRESSURE SWITCH 25-1059 USA , shipping cost = $14.10 | 100.0% |



The Robertshaw HK02AA400B HK02AA400 pressure stat switch is a crucial component of HVAC (Heating, Ventilation, and Air Conditioning) systems manufactured by Carrier Trane. It functions as a pressure controlling device, ensuring optimal performance and efficient operation of your HVAC system.
The HK02AA400B is expertly engineered to provide accurate pressure regulation. It maintains the desired heat exchanger pressure, guaranteeing steady temperature readings and consistent home comfort. Made from high-quality materials, this pressure stat switch is durable and dependable, designed to withstand the demanding conditions of heating and cooling systems.
This switch houses a bimetallic element at its core. This element bends in response to temperature changes, actuating the switch contacts to turn the heating or cooling system on and off according to the set temperature. Its temperature range is designed to accommodate environments typical for residential and light commercial applications.
Available in a standard threaded connection, this component can be effortlessly integrated into the existing HVAC system with ease. Dimensions of the HK02AA400B stat switch include a length of 4 inches, a width of 2 inches, and a height of 1 inch. The unit is mounted on the side of the exterior cabinet and includes a mounting template for simple installation.
Trane has a superior reputation in the HVAC industry for producing top-notch, efficient, and long-lasting components, and the HK02AA400B pressure stat switch embodies these standards. This essential component is a must-have for those wishing to ensure the longevity and efficiency of their HVAC systems.
Buying a Robertshaw HK02AA400B/HK02AA400 Pressure Stat Switch for Carrier Trane: A Comprehensive Analysis
Introduction:The Robertshaw HK02AA400B and HK02AA400 pressure stat switches are commonly used in Carrier Trane heating and cooling systems. These switches control the temperature and pressure of the refrigerant in the system. In this analysis, we will discuss the pros and cons of buying this specific pressure stat switch.
Pros:1. Compatibility: The Robertshaw HK02AA400B/HK02AA400 pressure stat switch is specifically designed to work with Carrier Trane systems. This ensures simple installation and compatibility with the existing system.
2. Durability: Robertshaw is a reputable brand known for producing high-quality components. The pressure stat switch is expected to provide long-lasting performance in harsh operating conditions.
3. Temperature and Pressure Control: The switch is capable of accurately controlling both temperature and pressure within the HVAC system, ensuring optimal system performance.
4. Energy Efficiency: Proper pressure and temperature control can lead to better energy efficiency in the HVAC system, resulting in lower utility bills.
5. Easy Installation: The pressure stat switch comes with easy-to-follow installation instructions and requires minimal tools. The straightforward process can save money on professional installation costs.
Cons:1. Cost: The cost of the Robertshaw HK02AA400B/HK02AA400 pressure stat switch may be higher than some alternative brands. This can deter some consumers from making the purchase.
2. Limited Availability: The pressure stat switch may not be readily available at local hardware stores, requiring an online purchase. This could result in additional shipping fees and longer wait times.
3. Complex Diagnostics: While the pressure stat switch is generally reliable, diagnosing issues and repairing it might be more complicated than other components.It may require working knowledge of refrigeration and HVAC systems or the hiring of a professional to assure proper functioning.
Conclusion:The Robertshaw HK02AA400B/HK02AA400 pressure stat switch offers several benefits, including compatibility with Carrier Trane systems, durability, energy efficiency, and ease of installation. However, the relatively high cost and limited availability could be potential drawbacks for some consumers. The decision to buy this pressure stat switch ultimately depends on the individual's specific needs, budget, and accessibility.
Recommendation:If you own a Carrier Trane HVAC system and require a pressure stat switch replacement, the Robertshaw HK02AA400B/HK02AA400 is a reliable and compatible option to consider. The switch's long-lasting performance and energy efficiency can lead to substantial cost savings. To offset the initial investment, consider purchasing from a retailer offering competitive prices or enjoy the ease of installation. Always ensure to determine the best time to replace the switch based on your system's operational status and availability of professional assistance for installation or troubleshooting, should it be required.
Details:
Item is new and works properly.
specifications maxohvac:
- brand: Robertshaw
- mpn: Hk02aa400b
- part type: Pressure Switch Carrier
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
returns maxohvac:
- time: 30 days
- policy: returns accepted
- paid by: buyer
- method: money back
shipping maxohvac:
- carrier: usps
- type: calculated
- class: standard
- service: usps ground advantage
- transit: 4-11 days
payments maxohvac:
- other
- wallet: google-pay
- credit card: discover
seller maxohvac:
- city: elmhurst, illinois
- # reviews: 124
- rating: 100.0%
offer maxohvac:
- best offers: true
- started: january 3, 2025
- options: ship-to-home
- availability: in stock
- prices: $29.90–$39.00
- item condition:
- New – Open box
- New
- sold #: 26
- in stock #: 3
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