REU-VR2626WB (B26) /REU-VR2426WS (S26) /REU-VRM2626WG (INF26)
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Issue 3 - 13/11/14 ©Rinnai
14. Component and Circuit Checks
1. Combustion Fan Circuit
a) Check the Motor
b) Check the combustion fan if the error indicator displays “61”.
c) Measure voltage between Black-Red of the PCB connector (
B
1
).
Normal:
15~46VDC (when fan ON)
0VDC (when fan OFF)
If normal proceed to check the rotation sensor
Faulty:
Replace PCB
Check for the Fan Rotation Sensor
a) Measure voltage between Black-Yellow of connector (
B
1
).
Normal:
11~13VDC
If normal proceed to b.).
Faulty:
Replace PCB.
b) Measure voltage between Black-White of connector (
B
1
).
Normal:
5~10VDC (20~400Hz)
If normal proceed to Sparker Circuit 2.
Faulty:
Replace Combustion Fan.
2. Igniter Circuit
a) Measure voltage between Grey-Grey of connector (
C
1
).
Normal:
207~264VAC
If Normal proceed to b.).
Faulty:
Replace PCB.
b)
Disconnect connector (
C
1
) and measure resistance between both terminals of the sparker.
Normal:
1M
If not sparking, adjust or replace ignition plug.
Faulty:
Replace Sparker.
3. Main Solenoid Valve (SV
0
)
Check the main solenoid if error indicator “11” is displayed.
a) Measure voltage between Pink-Black wires of main solenoid connector (
I
5
)
Normal:
11~13VDC
If normal, proceed to b.).
Faulty:
Replace PCB
b) Measure voltage between Main Solenoid connectors.
Normal:
37~43
If normal, proceed to Solenoid Valve
SV
1
Faulty:
Replace Main Solenoid.
