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EcoSmart™ Troubleshooting Guide
Models POU 3.5 & 6 kW
This guide is designed for installers or homeowners to help troubleshoot any issues experienced
during the lifetime of the tankless water heater.
For additional help, go to
ecosmartus.com/support/videos
and view the troubleshooting videos, or
email technical support at support@ecosmartus.com.
| © 2018 All rights reserved. | EcoSmart™ | www.ecosmartus.com |
Page | 1
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Summary of Contents for EcoSmart POU 3.5 kW
- Page 1 This guide is designed for installers or homeowners to help troubleshoot any issues experienced during the lifetime of the tankless water heater. For additional help, go to ecosmartus.com/support/videos and view the troubleshooting videos, or email technical support at support@ecosmartus.com. | © 2018 All rights reserved. | EcoSmart™ | www.ecosmartus.com | Page | 1...
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Page 2: Existing Installations
Serial number is printed on a white and black pixelated sticker and begins with the letters S/N followed by numbers (see image below). | © 2018 All rights reserved. | EcoSmart™ | www.ecosmartus.com | Page | 2... - Page 3 Flow Sensor Thermostat Terminal Block For additional help, contact technical support at 877-474-6473, Monday-Friday, 9:00 am—5:00 pm EST, by email support@ecosmartus.com, or on our website ecosmartus.com. | © 2018 All rights reserved. | EcoSmart™ | www.ecosmartus.com | Page | 3...
- Page 4 Make sure LED display is illuminated on heater. i. If it is not, check that the correct breaker was turned on. | © 2018 All rights reserved. | EcoSmart™ | www.ecosmartus.com | Page | 4...
- Page 5 Issues not resolved i. Please go to Activity C | Electrical Connection | © 2018 All rights reserved. | EcoSmart™ | www.ecosmartus.com | Page | 5...
- Page 6 Once you have a high volume of water flowing through your heater, check that LED display is illuminated. This can take up to 3 minutes. i. You may hear a loud humming noise coming from the heater; this is normal. | © 2018 All rights reserved. | EcoSmart™ | www.ecosmartus.com | Page | 6...
- Page 7 4. If this does not resolve the issue, flow meter must be replaced. If the heater is still within warranty, the part will be covered. If not, a flow meter can be purchased online or via our support team. a. Support info: 877-474-6473, or Support@ecosmartus.com | © 2018 All rights reserved. | EcoSmart™ | www.ecosmartus.com | Page | 7...
- Page 8 If you are receiving power lower than 220v, your unit decreases in kW by 25% giving you a lower temperature rise. For example: an 11 kW model receiving power lower than 220 volts will become an 8.25 kW model. | © 2018 All rights reserved. | EcoSmart™ | www.ecosmartus.com | Page | 8...
- Page 9 Turn breaker OFF, set meter for ohms and place one probe on one screw and the other probe on the other screw located on the top of the element. (see image 2-A) | © 2018 All rights reserved. | EcoSmart™ | www.ecosmartus.com | Page | 9...
- Page 10 D. If the heater is still within warranty, part will be covered. If not, parts can be purchased online or through our support team. i. Support info: 877-474-6473 or Support@ecosmartus.com | © 2018 All rights reserved. | EcoSmart™ | www.ecosmartus.com | Page | 10...
- Page 11 Depending on model, the unit may have either 1 or 2 heating elements. b. Locate heating elements and remove both Philips head screws on top of element and fold red wires back (see images below). | © 2018 All rights reserved. | EcoSmart™ | www.ecosmartus.com | Page | 11...
- Page 12 8. Connect drain hose to service valve on hot water line 9. Pour 4 gallons of white vinegar into bucket 10. Place drain hose and pump inlet hose into the vinegar | © 2018 All rights reserved. | EcoSmart™ | www.ecosmartus.com | Page | 12...
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Page 13: Filtration Maintenance
You can find these filter systems at most hardware and plumbing supply stores, or online. It is important to regulate calcium, lime and sediment levels in your water before it enters your tankless water heater. See recommended levels below. | © 2018 All rights reserved. | EcoSmart™ | www.ecosmartus.com | Page | 13... - Page 14 | © 2018 All rights reserved. | EcoSmart™ | www.ecosmartus.com | Page | 14...
- Page 15 The chart below will assist in selecting the correct model based on your location. Certified through the ETL Nationally Recognized Testing Laboratory to UL 499 and CSA. | © 2018 All rights reserved. | EcoSmart™ | www.ecosmartus.com | Page | 15...
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