EcoSmart POU 3.5 kW Troubleshooting Manual Download | Manualshive

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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

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Summary of Contents for POU 3.5 kW

Page 1: ...OU 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 ...

Page 2: ...ollow Activity C page 9 Unit is no longer producing adequate heat but is activating o Follow Activity D page 10 and then Activity E page 12 New installations same day install LED display light is not activating with flow rate but does when rotating round knob o Follow Activity B page 6 LED display light is illuminated on heater but unit is not heating o Follow Activity F page 15 Unit is not activa...

Page 3: ...ictured right to measure for both voltage and amperage Below is an inside view of an electric tankless water heater Always write down any volt meter readings results before contacting technical support 3 5 kW 1 Heating Element Rated at 3 5 kilowatts 6 kW 1 Heating Elements Rated at 6 0 Kilowatts For additional help contact technical support at 877 474 6473 Monday Friday 9 00 am 5 00 pm EST by emai...

Page 4: ...if Seal Broken sticker disregard this a Warranty will not be voided This sticker is there for safety purposes to ensure customers contact technical support before opening the unit 3 Locate the outlet thermistor red wire on the left hand side of the unit a See above image 4 Once you have Locate thermistor follow the red wire back to the control board and unplug a The thermistor wire are quick conne...

Page 5: ... 2018 All rights reserved EcoSmart www ecosmartus com Page 5 c Issues not resolved i Please go to Activity C Electrical Connection ...

Page 6: ... are connected correctly follow these steps a Turn OFF breakers b Turn OFF incoming water line per national plumbing codes there must be a shut off valve within 5 to 10 feet from the water heater c Unscrew outlet water line and place bucket under outlet water line on heater d Slowly turn water valve back on and check to see if water is flowing out of the heater or out of the disconnected water lin...

Page 7: ...rposes to ensure customers contact technical support before opening the unit c Locate flow meter i Flow meter is a device located on the inlet side of water heater and consists of 4 Phillips head screws and a small black wire see image below ii Remove 4 screws and pull cover off remove propeller and clean Make sure propeller is spinning freely and that all components are in the correct order see p...

Page 8: ...f Seal Broken disregard this i Warranty will not be voided This sticker is there for safety purposes to ensure customers contact technical support before opening the unit 2 Using a voltmeter a Place one probe on black wire terminal and the other probe on red wire terminal when measuring across you should get a reading of 208 240v depending on the power coming from your service panel b If you are g...

Page 9: ... if the element is working turn on a hot water tap We suggest running the shower or sink so that both elements will draw voltage and can be checked Once water is running through the unit the LED display will light up and show the temperature setting on the unit Using a volt meter 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 Che...

Page 10: ... further troubleshooting iii If the ohm reading is lower than 5 or higher than 10 the element will need to be replaced Element failures are commonly due to air pockets scale sediment buildup and or freeze damage 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 ...

Page 11: ...wer is at the unit LED display will not light up if the correct breaker is off b If LED display does light up correct breaker was not turned off 2 Turn off water going into unit a Per national plumbing codes there must be a shut off valve within 5 to 10 feet from the water heater If there is not a dedicated shutoff valve shut off the main water line to home b Once water is off verify this by turni...

Page 12: ...ew hot water faucets for 2 to 3 minutes to remove air pockets in the lines Recirculating Maintenance What is needed 1 five gallon bucket 1 four gallon per minute recirculating pump two inch female hoses and 3 to 4 gallons of undiluted white vinegar food grade Depending on the hardness of the water in your area you may need to perform this maintenance once to twice a year See diagram on page 14 Flu...

Page 13: ...water to flow through water heater for 5 minutes as it continues to drain 7 Close shut off valve on cold water line and allow heater to drain completely 8 Remove drain hose from service valve on hot water line 9 Screw cap tightly back onto service valve 10 Open both cold and hot water line shut off valves 11 Open a few faucets of hot water for 2 3 minutes to remove any air pockets in the lines 12 ...

Page 14: ... 2018 All rights reserved EcoSmart www ecosmartus com Page 14 ...

Page 15: ...e demand for higher flow rates a higher kilowatt model is needed There are 3 pieces of information needed to determine what size electric tankless water heater is right for you Watts Amount of energy needed to heat water to meet set desired temperature Temperature Rise Difference between inlet water temperature and set desired outlet temperature Flow Rate Measured in gallons per minute GPM The cha...

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