We’re here to help you with all things commercial refrigeration. We’d like to help you keep your machines running smoothly between maintenance calls. So, with some information and timely tips our aim is to assist business owners in better understanding when it’s time to make that call to schedule a maintenance appointment for their commercial coolers and freezers in Chicago. We’re also sharing some handy pointers on preventive maintenance that the end user can perform on their own.
First TIP, and essential, to a well running cooler or freezer:
Routine maintenance should be performed at least twice per year.
A thorough plan performed by a service company should include the following:
- Pressure Cleaning Condenser Coils (degrease if necessary)
- Pressure Clean Drain Lines
- Monitor Temperature & Cycling
- Check Refrigerant Level
- Check Condenser and Evaporator Fan Motors & Blades
- Check Electrical Connections: Wiring & Compressor
- Check Unit Thermometer: Door Gaskets & Insulation
- Check Door Hinges & Closers
- Ice Machines should be taken apart & cleaned.
- An acid descale solution should then be run through the water circuit.
This is what a dirty ice machine can look like:
If you own commercial refrigeration YOU should be aware of when the last maintenance service was performed.
If you had maintenance service preformed over six months ago then you might be surprised to learn that it’s now OVERDUE. In between service calls you can help keep your machines running as efficiently as possible by cleaning out the dust and dirt. Most self contained coolers and freezers have a cover at the top or bottom. This cover can be removed by taking out two screws on each side. Refrigeration owners can remove this cover to inspect the condition of the condenser coil once a month.
This condenser so dirty it can cause compressor to fail:
Here is the same condenser with half, and then all, of the dirt removed with a brush. BIG difference, right? This is something the end user can do in between full maintenance programs. Although, this does not remove all the dirt it will help you keep your unit running more efficiently between service calls. A service company will still need to come and blow out the coils with a pressure clean a few times a year.
If the refrigeration unit is a remote rack type like one pictured below, remove a side cover and look up from bottom to inspect condition of condenser coil.
Here are the main things a customer can do between maintenance visits:
- Check air-cooled condenser coils on coolers, freezers, and ice machines. These are the fan coils on the exterior of the unit. Brush off the dirt without damaging the aluminum fins.
- Check ice machines. Remove cover and inspect interior for signs of mold or slime build-up. If any build-up is found call a service company.
- Check door gaskets on coolers and freezers. Inspect for rips or tears.
- Check automatic door closers and hinges on equipment.
Keep in mind the following:
Equipment may still maintain temperature EVEN when in need of maintenance. It will also use significantly more electricity and be prone to major component failure.