How to Fix a Vending Machine Compressor: Pricing & Maintenance
Ever wondered how those cold drinks and snacks stay fresh and chilled inside vending machines?
Well, one of the key components responsible for keeping the items inside the vending machine cool is the vending machine compressor.
It’s a crucial part of the vending machine that ensures that the products stay at the perfect temperature for consumption.
How Does a Vending Machine Compressor Work?
Here’s a step-by-step guide on how a vending machine compressor works:
1. Refrigeration Cycle
It works by compressing the refrigerant gas, which raises its temperature and pressure.
The compressed gas flows through a condenser, where the gas is cooled and condensed into a liquid.
2. Expansion Valve
The liquid refrigerant travels through an expansion valve, where it is allowed to expand and evaporate into a gas.
As it evaporates, it absorbs heat from the surrounding air, thus cooling the vending machine.
3. Evaporator
The cooled gas then flows through an evaporator, where the gas absorbs the heat from the products stored in the vending machine, cooling them to the desired temperature.
4. Temperature Control
The compressor continuously cycles through this process to maintain the desired temperature inside the vending machine.
The temperature is typically set and controlled by a thermostat located inside the vending machine.
Replacing a Vending Machine Compressor
Here’s a step-by-step guide on how to replace a vending machine compressor:
Step 1: Preparation
Before you start, make sure to gather the necessary tools and materials such as an empty container for catching oil, screwdrivers, torque wrench, adjustable wrenches, clean-out tools, replacement compressor and filter drier.
Also, check if there is power coming into the machine before getting started.
Step 2: Removing the Old Compressor
Turn off the power to the vending machine then locate the discharge line from the existing compressor.
Use a clean-out tool to remove any remaining oil from the discharge line into an empty container.
Disconnect motor wires and remove the old compressor from its housing.
Step 3: Installing New Compressor
Connect motor leads and place new compressor into its housing. Reattach the discharge line onto the new compressor and ensure that it is tightly secured with adjustable wrenches or torque wrenches.
Connect the filter drier outlet line onto the new compressor intake side using flare nuts. Make sure all fittings are tight before proceeding onwards.
Step 4: Refilling Oil System
Using a vacuum pump attached to the suction side of the filter drier pull a deep vacuum on the system until the crankcase heater trips out (this may take up to 30 minutes).
Slowly add refrigerant oil back into the system until a sufficient amount of oil fills the system (approx ½ unit size).
At this point you can turn the power back on for the machine but keep in mind it may take longer for the temperature inside vending machine to cool down depending on external ambient temperature.
How Long Does a Vending Machine Compressor Last?
The average lifespan of a vending machine compressor can be anywhere between 10-15 years depending on regular maintenance, while a poorly maintained one may need to be replaced after just a few years.
To make sure your machine continues running efficiently, you should check the system routinely and ensure that all components are in good working condition.
Maintenance for a Vending Machine Compressor
Maintaining the compressor is essential to ensure it runs efficiently and has a longer lifespan.
Here are some steps you can take to maintain your vending machine compressor:
Step 1: Clean the exterior
Use a damp cloth to wipe the exterior of the compressor. Remove any dirt or debris that may have accumulated on the surface.
Step 2: Check the oil level
Check the oil level of the compressor regularly. If the oil level is low, add the recommended type of oil until it reaches the correct level.
Step 3: Inspect the fan blades
The fan blades of the compressor can become dirty or damaged over time, which can reduce the airflow and cause the compressor to overheat. Inspect the fan blades regularly and clean or replace them if necessary.
Step 4: Check the refrigerant level
Low refrigerant levels can cause the compressor to work harder than it should, which can lead to damage. Check the refrigerant level of the compressor regularly and add more if necessary.
Inspect the electrical connections: Inspect the compressor for any signs of wear such as rust, oil leaks, noise, or vibrations.
Troubleshoot any issues to ensure the system is running optimally. In some cases, it may be necessary to replace parts if they are beyond repair or if they show signs of significant wear.
Step 5: Schedule regular maintenance
It’s recommended to schedule regular maintenance with a qualified technician to ensure it is functioning properly.
Check filters regularly for dirt or clogs and replace them when needed to maintain system efficiency.
By following these maintenance steps, you can help ensure it lasts longer and runs efficiently.
Signs of a Bad Vending Machine Compressor
- Increasingly loud noise or vibration coming from the compressor
- An increase in temperature or pressure readings
- Oil leaking from the machine
- The machine trips breakers or fuses repeatedly
- Compressor cycling that is too frequent or too long
- Poor cooling efficiency
Can I Upgrade my Vending Machine Compressor for Better Performance?
Yes, you can upgrade your vending machine compressor for better performance. There are many factors to consider when upgrading, including the type of machine you have, the age and condition of the current compressor, and the desired level of performance.
A qualified technician should be consulted to select a suitable replacement and perform the installation.
Can I Use a Different Brand of Compressor in My Vending Machine?
Yes, you can use a different brand of compressor in your vending machine.
However, it is important to research and compares the specifications of the new model to make sure it is compatible with your machine and that it meets your performance expectations.
In some cases, modifications may be necessary in order for the new compressor to work correctly. Therefore, it is best to consult a qualified technician before making a final decision.
Where Can I Buy a Replacement Vending Machine Compressor?
You can purchase a replacement vending machine compressor online or from a local retailer.
Some popular options include
- Vending Works,
- VendNet USA, and
- Global Vending Group.
You can also check with the manufacturer of your vending machine to see if they sell replacement compressors or can recommend a supplier.
How Much Does a Vending Machine Compressor Cost?
The cost of a vending machine compressor range from as low as $50 to as much as $500 or more. Larger compressors tend to be more expensive and can cost upwards of $1000 or more.
Here is a chart summarising the Cost of Vending Machine Refrigeration Compressors from VendingWorks:
| Model Name | Brand | Features | Price Range |
|---|---|---|---|
| DNC300 | Dixie Narco | Soda Vending Machine Refrigeration Compressor Cooling Deck Unit 300 | From $339 |
| DNC400 | Dixie Narco | Soda Vending Machine Refrigeration Compressor Cooling Deck Unit 400 | From $339 |
| VC407 | Vendo | V407 V-Max, Univendor Soda Vending Machine Refrigeration Compressor Cooling Deck Unit | From $339 |
| DNC800 | Dixie Narco | Soda Vending Machine Refrigeration Compressor Cooling Deck Unit 800 | From $339 |
| Royal 650 | Royal Vendors | 8000 Soda Vending Machine Refrigeration Compressor Cooling Deck Unit | From $339 |
| V45T, V43T, V25T | Vendo | Compressor Deck Unit for Vintage Machines VT45 VT25 | $599 |
| V264 | Vendo | Soda Vending Machine Refrigeration Compressor Cooling Deck Unit V264 | From $489 |
| DNC1200 | Dixie Narco | Soda Vending Machine Refrigeration Compressor Cooling Deck Unit 1200 | From $339 |
| V-21 | Vendo | Vendo V-21 Soda Vending Machine Refrigeration Compressor Cooling Deck Unit | From $339 |
| DNC1203 | Dixie Narco | Soda Vending Machine Refrigeration Compressor Cooling Deck Unit 1203 | From $339 |
| CSS | Cavalier | Soda Vending Machine Refrigeration Compressor Cooling Deck Unit | $599 |
| USI CD 24 | Other | CD 24 | From $399 |
| V23TE | Vendorlator | Vintage Soda Vending Machine Refrigeration Compressor Cooling Deck Unit | $599 |
| V24TE, V24TD | Vendorlator | Vintage Soda Vending Machine Refrigeration Compressor Cooling Deck Unit | $599 |
| 2145 | Dixie Narco | Bottle Drop Dual Condenser Refrigeration Unit 1600 | From $525 |
| 832 | Dixie Narco | Soda Vending Machine Refrigeration Compressor Cooling Deck Unit 832 | From $339 |
| 3001 C-E | Dixie Narco | Soda Vending Machine Refrigeration Compressor Cooling Deck Unit 3001 C-E | From $339 |
| V53TA | Vendo | Soda Vending Machine Refrigeration Compressor Cooling Deck Unit | From $479 |
| VT82 | Vendo | Soda Vending Machine Refrigeration Compressor Cooling Deck Unit | From $489 |
| 2001 | Dixie Narco | Bottle Drop Single Condenser Refrigeration Unit | From $525 |
| V23TB, V23TC | Vendorlator | Vintage Soda Vending Machine Refrigeration Compressor Cooling Deck Unit | $599 |
| Crane 5800 / 3800 | Dixie Narco | Bevmax 4 & 6 Refrigeration Compressor Unit | From $575 |
| RVV | Royal Vendors | Refrigeration Compressor Cooling Deck Unit | From $369 |
Final Thoughts
When it comes to buying a replacement, there are a lot of factors to consider.
It is important to research the specifications and performance of different models in order to make sure that you purchase the right compressor for your needs.
Costs can also vary significantly depending on the size, type, and brand of the compressor so make sure to factor this into your decisions as well.
Finally, be sure to consult with an experienced technician for any queries.
Also Read: Typo Mini Vending Machine: Pricing, Features, Size & Refill
