Rinnai HD250E REU-V3232WC, Service Manual

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Infinity REU-V3232W /HD250E REU-V3232WC - 34 - Issue 1 - 8/09/03 ©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