Fix Your ORLAN EKOSTER2 Controller
Common Issues and How to Repair Them
If your EKOSTER2 microprocessor temperature controller is malfunctioning, flashing errors, or not working as expected, don’t rush to replace it. Here’s how you can fix it yourself and save money!
Symptoms and Solutions
1. Continuous Pump Operation or Mechanical Malfunctions:
This is likely caused by faulty relays. While this guide doesn't cover relay replacement, you can identify and replace them if needed. Look for the ZETTLER AZ673-1A-12DS component.
2. Blinking Temperature Screen:
The issue is often due to worn-out capacitors. Here's how to replace them:
The big one is the wrong type but the right values, think it's 40V and 470uF, the litte one, can't read as it's positioned
According to this link the small one is a 220µF, 35V Capacitor (unverified information)
See below for the right values
Change the 2 capacitors with some with the the same /close values
I have heard the higher V is no big deal but the F should be same.
Did get some information from Mr Lasse Westlin, thanks for the infomation Lasse.
Capacitors:
E201: 470 uF 16 V
E202: 220 uF 16 V
Step-by-Step Repair Guide
- Bend out the controller from the chassi.
- Disconnect the cable connections.
- Open the plastic box (unscrew from both the top and bottom sides).
- Locate the capacitors on the central board, note their values and polarity (+ and -).
- Replace the capacitors with new ones of similar values. Ensure correct polarity during installation.
- Reassemble the controller and test it.
Why Do Capacitors Fail?
Capacitors have a limited lifespan, which shortens further under high temperatures. Over time, they leak fluid and degrade. Faulty capacitors is the cause most electronic failures. Replacing them often resolves the issue.
Struggeling fan start
There is a run capacitor behind the elecrical cover of the fan that needs to be replaced
It is a 2uF 450 V AC 50/60 Hz-type run capacitor
You can find those for $5 on Amazon
Relay Issues
Relays fail when their mechanical contact surfaces burn or degrade, leading to electrical disconnection or sticking. Replacing the relay with a similar component and soldering it into place can resolve these issues.
Contact and Additional Resources
Email: westrin.tomas@gmail.com
Visit: My Webpage