If you are using an HSC-60 air conditioner and the display shows an E1 error, follow these steps.
- If you installed your duct-work yourself, make sure it has as few turns as possible. Think, swooping, gradual curves; not right angles.
- Make sure your air filter is clean. Turn off the unit, remove the air filter, clean it thoroughly, and replace it.
- Restart the unit.
In the video below, our technician will walk you through these steps.
Transcript: I’m going to demonstrate what happens when a unit gives you a code saying “E1.” E1 is a high pressure alarm. It’s telling the unit that the pressure’s too high, I’m too hot, I can’t get rid of my heat, so I’m going to shut down. It’s a safety feature on all of our spot cooling devices.
If a customer is installing their ductwork, we try to tell them to make sure their runs are as straight as possible–swooping curves, not right angle curves. What I mean by right angle curves on a ductwork, it’s going to come right off the unit, be it into a window or into a hole in the wall.
This run is directly right off the unit, and it’s pinched right off the unit. Now, it’s one thing to have turns further up into the run and then further turning, but try to make them as sweeping as possible. that way, it allows the most heat to be extracted off the condenser side to remove as much heat as possible without back-feeding the unit and going back on E1. Another leading cause to an E1 error is your filters.
We have an evaporator side filter and a condenser side filter. Depending on the environment–if it’s dusty–whatever may happen in a certain environment, that could also lead to high pressure, because there’s not enough air flow going across the coils to cool the coils and the fan can’t reject enough.
So what we ask customers is to remove the filters. If you have an air compressor, take it to an air compressor, blow it out really well. Or, if you have a standardized hose somewhere, you hose them out and you can pop them back in, and then what you’ll do is restart the unit. So you want to make sure the system is shut down, powered off. It has a sixty second countdown.
As you’ll notice, when you see a temperature down at the bottom, that means you’re still powered to run. Now when I say powered off, you want to power if off and that way, you’re only reading the room temperature. Then you can go ahead and start the unit back up again.