Component And Circuit Checks - Rinnai REU-V2632FFUG Service Manual

15. Component and Circuit Checks

1. Combustion Fan Circuit
Check the Motor
Check the combustion fan if the error indicator displays "61".
Measure voltages between Black-Red of the PCB connector (B
Normal: DC6~45V (when fan ON)
DC0V (when fan OFF)
If normal proceed to check the rotation sensor
Faulty: Replace PCB
Check for the Fan Rotation Sensor
a.)
Measure voltages between Red-Black of connector (B
Normal: DC11~13V
If normal proceed to b.).
Faulty: Replace PCB.
b.)
Measure voltages between Black-White of connector (B
Normal: DC6~45V (33~400Hz)
If normal proceed to Sparker Circuit 2.
Faulty: Replace Combustion Fan.
2. Sparker Circuit
a.)
Measure voltages between Grey-Grey of connector (C
Normal: AC207~264V
If Normal proceed to b.).
Faulty: Replace PCB.
b.) Disconnect connector (C

Normal: 1M
If not sparking, adjust or replace ignition plug.
Faulty: Replace Sparker.
3a). Main Solenoid Valve (SV
Check the main solenoid if error indicator "11" is displayed.
a.)
Disconnect Main Solenoid connector (F
Normal: DC11~13V
If normal, proceed to
Faulty: Replace PCB.
b.)
Measure resistant between Pink-Black of Main Solenoid connectors.

Normal: 37~43
If normal, proceed to Solenoid Valve SV
Faulty: Replace Main Solenoid.
Infinity REU-V2632FFUG / HD200i REU-VM2632FFUC
REU-V2632FFUG / REU-VM2632FFUC
) and measure voltage between both terminals of the sparker.
1
) Circuit (F )
0
1
) and measure voltage between Pink-Black
1
b
.).
1
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).
1
)
1
)
1
).
1
Issue 1 - 16/12/09 ©Rinnai