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This page will help you navigate our troubleshooting guide. Read the each step carefully and do not skip
ahead. For additional help, contact technical support by email at
or call 877-
474-6473, Monday-Friday, 9:00 am—5:00 pm EST.
Existing installations
LED display light is not activating with flow rate
o
Follow Activity B (page 6)
LED display light is illuminated on heater, but unit is not heating
o
Follow Activity A (page 4)
Not receiving power at unit
o
Follow 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 activating, even when rotating round knob
o
Follow Activity C (page 9)
When contacting technical support, please have your model and serial number ready. The serial number
is located on the front cover of the unit. Serial number is printed on a white and black pixelated sticker
and begins with the letters S/N followed by numbers (
see image below
).
