Rinnai REU-VRM3237WC Service Manual

Infinity REU-VRM3237WG / HD250e REU-VRM3237WC - 19 - Issue 1 - 19/05/09 ©Rinnai
16. Component and Circuit Checks
1. Combustion Fan Circuit (B
1
)
• Check the Motor
• Check the combustion fan if the error indicator displays “61”.
• Measure voltages between Black and Red of the PCB connector (B
1
).
Normal: DC6~45V (when fan ON)
DC0V (when fan OFF)
If no
rmal proceed to check the rotation sensor
Faulty: Replace PCB
2. Check for the Fan Rotation Sensor
a.) Measure voltages between Black and Yellow of connector (B
1
).
Normal: DC11~13V
If normal, proceed to b).
Faulty: Replace PCB.
b.)
Measure volt
ages between Black and White of connector (B
1
).
Normal: DC6~45V
If normal, proceed to Sparker Circuit 2.
Faulty: Rep
lace Combustion Fan.
3. Igniter Circuit
(C
1
)
a.) Measure voltage between Grey and Grey of connector (C
1
).
Normal: AC207-264V
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 normal and not sparking adjust or replace ignition plug.
Faulty: Replace Sparker.

Rinnai REU-VRM3237WC Specifications

General

Brand	Rinnai
Model	REU-VRM3237WC
Category	Water Heater
Language	English