State Water Heaters 310C Installation Manual And Owner's Manual page 43

Green
Remote
LED
651* Four Times
661*
Four Times
701*
One Time
711*
One Time
721*
Six Times
741
N/A
751 N/A
761
N/A
991
Five Times
*These error codes will be cleared when water flow stops.
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Malfunction
description
Flow adjustment • Inspect the flow adjustment valve (Part #402), for
valve fault (Only connection/breakage of wires, locked motor drive due to
Easy-Link & Multi-Unit scale buildup, and/or water leakage.
System)
Bypass valve fault • Inspect the bypass valve (Part #403), for connection/
(510C model only) breakage of wires, locked motor drive due to scale
buildup, and/or water leakage.
• Check for connection/breakage of wires (Part #713).
Computer board fault
Gas solenoid valve • Refer to the 111 and 121 error codes.
drive circuit failure
False flame detection • Check if condensate drain is installed on the vent collar of
the water heater.
• Check if there is leaking from heat exchanger (Part #401).
Miscommunication • Check the model type of the remote controller.
between water heater • Inspect the connections between the water heater and
and remote controller remote controller.
• Check the power supply of the water heater.
Miscommunication • Inspect the connections between the water heater
between water
and built-in controller.
heater and built-in
• Check the power supply of the water heater.
controller
Miscommunication in • Check if the connections between the parent unit and the
Easy-Link system child units are correct. Refer to p. 25.
Imperfect • Check the gas type of the water heater.
combustion • Inspect the environment around the water heater.
Determine how long the unit has been installed.
• Check the altitude/elevation of the area of where the
water heater is installed.
• Check if there is any blockage in the intake air and/or
exhaust.
• Check whether there is enough distance between the
concentric terminals.
• Check if there is grease and/or dirt in the burner (Part
#101) and the fan motor (Part #103), especially if the
water heater has been installed in a contaminated area.
43
Page
Owner's Guide
Troubleshooting
Diagnosis