Rinnai INFINITY REU-3203W, Service Manual

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Infinity REU-3203W - 34 - ©Rinnai
15.Bypass Servo Circuit 15.
a.)
Disconnect relay connector (B
1
) and
measure resistance.
If normal, proceed to b .
Faulty: Replace PCB.
b.)
Measure working voltage while relay
connector (B
1
) is connected.
Faulty: Replace Bypass Servo.
16.Remote Control
Check the voltage between the 2-core remote
control cable.
Measure the voltage between terminals on
the remote control terminal (H
1
).
Normal: DC 11~13V
If normal, replace the remote control
after confirming that the cable hasn’t
been damaged or shorted.
Faulty: Because normal voltage is not
given due a short circuit, despite the
PCB being in normal state, check Water
Flow Servo circuit.
If solution is not given from the above
replace PCB.
Normal
CN Wire Colour Value
B
1
Br - W
O - W
Y - W
R - W
GND
15~35
Ω
Normal
CN Wire Colour Value
B
1
Br - W
O - W
Y - W
R - W
GND
DC 2~6V