Rinnai REU-V2632FFUG Service Manual page 25

3b). Solenoid Valve 1 (SV
Check Solenoid 1 if error indicator "11" is displayed.
a.)
Disconnect Solenoid Valve 1 connector (
Normal: DC11~13V
If normal, proceed to
Faulty: Replace PCB.
b.)
Measure resistance between Red-Black of Solenoid 1 connector.

Normal: 35~43
If normal, proceed to Solenoid Valve 2 (SV
Faulty: Replace Solenoid 1.
3c). Solenoid Valve 2 (SV
Check Solenoid Valve 2 if error indicator "11" is displayed.
a.)
Disconnect Solenoid 2 connector (F
Normal: 11~13V
If normal, proceed to
Faulty: Replace PCB.
b.)
Measure resistance between of Solenoid Valve 1 connectors.

Normal: 37~43
If normal, proceed to Solenoid Valve 3 (F
Faulty: Replace Solenoid 2.
.
3d). Solenoid Valve 3 (SV
Check Solenoid Valve 3 if error indicator "11" is displayed.
a.)
Disconnect Solenoid 3 connector
Normal: DC11~13V
If normal, proceed to
Faulty: Replace PCB.
b.)
Measure resistance between
Solenoid Valve 3 connectors.

Normal: 35~41
If normal, proceed to Modulating Valve Circuit
Faulty: Replace Solenoid Valve 3.
3e). Modulating Solenoid Valve (F
a.)
Disconnect Modulating Valve fasten terminals and measure voltage between terminals.(E

Normal: 67~81
If normal, proceed to
Faulty: Replace Modulating Valve.
b.)
Measure voltage between Pink-Pink of Modulating Valve fasten terminal.
Normal: DC2.0~15V
If normal, proceed to c.).
Faulty: Replace PCB.
c.)
Check the gas secondary pressure change when set temperature on the water control changes
from 37°C to 55°C.
Normal: If secondary pressure changes, go to Water Flow Servo Circuit.
Faulty: Replace Modulating Valve.
Infinity REU-V2632FFUG / HD200i REU-VM2632FFUC
REU-V2632FFUG / REU-VM2632FFUC
) (F )
1
2
) and measure voltage between Red-Black.
F
2
b
.
2
) (F )
2
3
) and measure voltage between Orange-Black.
3
b
.
) Circuit
4
) (F )
3 4
and measure voltage between Yellow-Black.
(F )
4
b
.
)
1
b
.).
- 20 -
) Circuit
)
2
Issue 1 - 16/12/09 ©Rinnai