GLOW T180 - 7.9 No Hot Water

Glow T180
Tankless Condensing Water Heater
66
7.9 No Hot Water
NO HOT WATER
CHECK THE DISPLAY
IS
DISPLAY
ON?
CHECK THE FUSE OF
MAIN CONTROL BOARD
CHECK FLOW SYMBOL
ON DISPLAY
IS WIRING
HARNESS DAMGED OR
BROKEN?
REPLACE MAIN BOARD
NO
YES
NO
YES
NO
IS
FUSE
DAMAGED
BROKEN?
REPLACE FUSE
CHECK THE WIRING HARNESS
BETWEEN MAIN CONTROL
CONNECTION BOARD AND DISPLAY
REPLACE DISPLAY
BOARD
IS
THE FLOW
SYMBOL ON THE
DISPLAY?
NO
REPLACE
FLOW SENSOR
YES
REPLACE
HARNESS
YES
CHECK THE
MAIN CONTROL BOARD
IS
DISPLAY
ON?
YES
NO
IS MAIN
CONTROL BOARD
DAMGED OR
BROKEN?
INCREASE FLOW MORE
THAN 0.6 GPM
IS
THE FLOW
SYMBOL ON THE
DISPLAY?
CLEAN THE FLOW
SENSOR
IS
THE FLOW
SYMBOL ON THE
DISPLAY?
NO
NO
NO