IKONIC Tankless Water Heater Service Manual
16
GENERAL INFORMATION
DIAGNOSTIC POINTS ON CONTROL BOARD
CONNECTION # WIRE COLOR NORMAL VALUE WHAT ARE YOU CHECKING?
A
W1-BK2 AC 108 - 132 V
Do you have power to the control
board?
W3-BK4 AC 108 - 132 V Do you have power to the pump?
C
GY1-GY4 AC 108 - 132 V Is the igniter working properly?
Y3-BK5
DC 90 - 120V
0.8kΩ - 2.4kΩ
Solenoid valve 1 OK?
W6-BK2 AC 108 - 132 V Gas - Air - Ratio valve OK?