If your slushy machine is not freezing whatsoever on any of the silver evaporators, which are inside the bowls that the slushy freezes to, then the are a couple of possible reasons. Here are the most common reasons for this.
Slushy machines rely on gas circulating from the compressor, around the pipework and back again to freeze the slushy. No freezing or chilling whatsoever usually points to: a blocked condenser, a gas leak, a failed compressor or failed compressor electrics.
Potential problems
- You could have a blocked condenser, check this first!
- If the compressor gets hot when the machine has been running for a little while, but it’s not freezing, this points most likely to a gas problem or less likely a faulty compressor.
- If the compressor is not getting hot when the machine has been running for a little while, then it is not switching on. This points to a problem with the compressors electrics or the compressor itself.
Solutions
1. Blocked condenser
This is the part that looks a bit like a radiator and takes up the space behind one of the side panels. The cool air is pulled into the machine through this, over time dust will collect on the vanes of the condenser or against the filter which covers it on some machines. The more this builds up, the harder the compressor has to work, Check this regularly to make sure it’s clear of dust. This short video shows the filter being replaced, you may not have a filter, if not simply clean out the condensor with a brush and a vacuum cleaner.
Allow as much space as possible for air to flow around the machine. This allows it to draw in cool air and expel the hot air efficiently.
2. Gas issue
If you suspect the slushy machine has lost it’s gas, you will need a refrigeration engineer. Tip – Don’t let the engineer simply add some gas and send you on your way. If the machine has lost it’s gas, there has to be a leak. The correct repair is to leak test the machine, locate the leak and seal it. Then to charge the machine with the correct amount of gas, this is usually shown on the manufacturers plate along with the model and serial number.
3. Compressor issue
If you suspect the compressor or it’s electrics have failed, it’s time to make a decision. The repair will likely be upwards of $500, usually not over $900 but prices vary. Is it time for a new one? You can read our guide on choosing a slushy machine here.
Causes
Slushie machines work hard, especially if the environment is not ideal for them. The useful life of a compressor should be 10 years or more, but will be reduced depending on the conditions.
Keeping the condenser clear and allowing plenty of airflow around the machine, is the best thing you can do to prolong the useful life of your slushy machine.