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PLEASE NOTE: FVI12 IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECT TO CHANGE WITHOUT
NOTICE. PLEASE VISIT WWW.ECCOTEMP.COM/SUPPORT FOR MORE INFORMATION.
Phone: 866-356-1992 | Email: Support@eccotemp.com | Address: 315 - A Industrial RD Summerville, SC 29483
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Eccotemp.com/help-desk
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Eccotemp.com/products
Store Locator:
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Save time and money! Review the charts on the following pages first and you
may not need to call for service.
This water heater incorporates a variety of shut off devices that prevents the
operation of the water heater down if undesirable combustion conditions occur.
Such as the presence of a blockage of the combustion air vent insufficient gas or
pressure which can impact the safe operation of the water heater. Please contact
a Qualified Service Technician if this occurs.
Problem
Possible Cause
What To Do
Not enough or
no hot water
Water shutoff valve is not
fully opened
Check shutoff valve and open fully.
Hot water faucet is not
fully opened
Open hot water faucet completely.
(The main burner goes off when incoming
water volume is inadequate.
Water piping is frozen
Allow piping to thaw.
No electricity or water
supply is cut off
Check that proper power is being supplied
and/or water supply is adequate.
Unit is not “ON”
Turn the water heater “ON” by the button on
the remote control.
The temperature may
be set too low
Increase the temperature setting.
Mixing Valve malfunction
(if applicable)
Check and replace if necessary.
Error code displayed on
remote control panel
See instructions for Error Code and if required,
contact a dealer for service.
Water not
hot enough
The temperature may be
set too low
Increase the temperature setting.
The gas valve is not fully
opened
Check and open the gas valve fully.
Water too hot
The temperature is set
too high
Decrease the temperature setting.
Water shutoff valve is
not fully opened
Check shutoff valve and open fully.
Small amount of water
has been heated
Allow more water to flow.
Water filter is clogged
Clean the filter with a tooth brush.
Fan continues
to rotate after
hot water faucet
is closed
This function is to
purge unburned gas
10-15 seconds
Normal operation. There is no need to call for
service. Check for error code.
Before you call
Troubleshooting
