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After the initial start-up, following the Pre-Power and Operational Checks described
in the Electrical Installation section of this manual, it may be necessary to make
adjustments to the system to insure that the water heater is functional and providing
hot water.
BEEPS & FLASHING LIGHTS – WHAT DO THEY MEAN?
It is normal at start-up or any time the water heater is powered-on for the control
board to beep and the LED to flash red and then green. Normal status of the heater
is for the control to flash all green repeatedly. The initial 2 to 4 red flashes and
beeps after power-on are normal, but should not continue.
ECCOTEMP PROVIDES ON-BOARD SELF-DIAGNOSTICS
However, in the event that the LED light continues to flash a red sequence after
power-on, then there may be a need for further investigation. The heater’s control
provides self diagnostics by emitting a red flashing code. The code definitions and
possible solutions can be found in the Troubleshooting section of the Eccotemp
Service Manual.
Some of the most common problems discovered during installation and initial start-
up are as follows:
• Circuit breakers are not turned-on (especially, heaters with
multiple circuits)
• Incoming power wires to the water heater are out-of-phase
(heaters with multiple circuits)
• Water supply valve not turned-on, no water in the heater chamber
• Water supply lines are reversed; hot and cold reversed
• Water supply connection(s) are leaking
• T&P Relief Valve (where required by local code) is leaking or
stuck open
THE ECCOTEMP HEATER ALERTS THE USER OF WATER LEAKS!
Diagnostic codes are designed to tell the installer or user if there is a problem and
what the problem might be. Also, the water heater has a built in alarm that will
sound if there is water leaking onto the water heater, possibly from a leaky water
line connection or from a leaky T&P Relief Valve. Check equipment connected nearby
the water heater for the possibility of leaks and spraying onto the water heater. It is
important to turn off all of the circuit breakers and water supply to the water heater
whenever a leak is detected to prevent possible damage to the control board. After
the leak is discovered and repaired, it is important to dry any moisture or water
accumulation on the water heater. This can be done with a standard household hair
dryer or dry towel. Any attempts to dry the water heater should be done with all the
power off to the water heater.
