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Mitsubishi Troubleshooting

Troubleshooting Mitsubishi Starmex Aircon Problems

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As one of the best air conditioner brands in Singapore today, Mitsubishi Starmex Aircons are admired for their technology, reliability and cooling performance. But just like any other air conditioner brand, these Mitsubishi units are still prone to experiencing even the most common air conditioning problems known to every homeowner or office worker.

So what should you do if your Mitsubishi Starmex Aircon has suddenly stopped working?

Are there quick fixes that you can make to prevent the problem from getting worse? Or should you just admit defeat and call the Mitsubishi service center or your most trusted aircon technician right away? (Hint: not really.)

In this complete guide, discover the many troubleshooting steps that you can do once your Mitsubishi Starmex Aircon unit starts running into any common aircon problem — from low cooling to blinking error lights to annoying leaking issues.


Mitsubishi Starmex Aircon Problems

1. Blinking lights

The Mitsubishi Starmex Aircon starts blinking as a self-diagnosis mechanism that helps it communicate a problem within the unit. This allows the aircon to immediately notify you or the technician that there’s something wrong that needs correcting right away.

The first thing that you need to check when you run into this issue is if the bottom louver’s clasp is secure and tight. Most of the time, a loose or unsecure clasp causes the lights at the bottom right of the unit to blink. Simply put them firmly back in place and make sure the whole thing’s shut tightly and firmly. 


For other potential causes, be sure to pay attention to which LED light is blinking: the top, the bottom, or both. Afterwards, check the number of times the lights blink; this is done by counting the number of blinks in one set. For example, the bottom LED lights can blink for three times before pausing and repeating. This is considered as one set.

Once you’ve listed down the blinking pattern, refer to the error code list provided by Mitsubishi. Oftentimes these guides are located inside the units or on the manuals.

2. Leaking and dripping

Leaking is a common problem among different air conditioner types and brands — and the Mitsubishi Starmex Aircon is not an exception.

This issue is usually caused by blocking or clogging in the condenser line, the pan drip or the overflow pan. It’s so common that every air con owner is bound to experience the problem at least once during the machine’s entire lifespan. So if you’re experiencing this, don’t fret. It’s easily repairable and manageable.

If you’re fixing the issue yourself, you need to take the unit out of its wall and casing. Next, clean the pipes to get rid of the material causing the blockage — dirt, dust or frozen water. Splash the entire piping system with water to further rinse it of any particles. Afterwards, clean the entire thing using a dishwashing soap or bleach.

Once you’re done with the washing process, simply let the unit air dry and assemble everything back together once done. However, if you’re quite unsure of how to do this yourself, it’s better to contact an aircon servicing expert to help you do the trick.

For a complete guide on fixing water leaks, click here.

3. Aircon not blowing cold air

Is your Mitsubishi Starmex air conditioner not blowing cold air? If you’ve answered yes, then you are most likely experiencing another common AC issue.

This problem can be pinpointed to a lot of causes. It could be a broken compressor, a faulty thermostat, a leaking refrigerant or a condenser on its last legs. But whatever the actual cause may be, this issue is best left at the hands of an air conditioner expert or servicing company.

Because these causes are normally quite complicated, letting these experts deal with the problem to avoid unnecessary damages to the unit should serve you better in the long run. 

4. Aircon not cooling enough

While this issue can often mask itself as a slight inconvenience to the unit’s operating system, it’s actually a bigger problem that needs dealing with right away.

An aircon is made to provide you with cool and crisp air. So when this main feature gets taken away from you, it could be due to a number of factors. From broken compressors to faulty thermostat controls, zoning in to one possible cause can prove to be quite challenging.

If this happens to you, you need to seek professional help and repair from Mitsubishi’s support center or any licensed AC service provider. Along with that, make sure to get regular proper servicing to avoid experiencing the same issue again.


Get the Most Out of Your Mitsubishi Starmex Aircon

The Mitsubishi Starmex Aircon is a leading aircon choice that should enhance your cooling experience at home or at the office. But in order to make this happen, you also need to do your part in making sure it gets the proper care and regular maintenance it deserves.

For quality home and office AC servicing, contact us at Luce Aircon! Contact us today for a free consultation and schedule an appointment with any of our aircon experts and technicians.


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Staff Writer

Staff Writer

This article is written by our passionate staff writers who seek to share our knowledge from our business

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