Rinnai REU-V2632FFUG, Service Manual

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Infinity REU-V2632FFUG / HD200i REU-VM2632FFUC - 20 - Issue 1 - 16/12/09 ©Rinnai
REU-V2632FFUG / REU-VM2632FFUC
3b). Solenoid Valve 1 (SV
1
) (F
2
)
Check Solenoid 1 if error indicator “11” is displayed.
a.)
Disconnect Solenoid Valve 1 connector (
F
2
) and measure voltage between Red-Black.
Normal:
DC11~13V
If normal, proceed to
b
.
Faulty:
Replace PCB.
b.)
Measure resistance between Red-Black of Solenoid 1 connector.
Normal:
35~43

If normal, proceed to Solenoid Valve 2 (SV
2
) Circuit
Faulty:
Replace Solenoid 1.
3c). Solenoid Valve 2 (SV
2
) (F
3
)
Check Solenoid Valve 2 if error indicator “11” is displayed.
a.)
Disconnect Solenoid 2 connector (
F
3
) and measure voltage between Orange-Black.
Normal:
11~13V
If normal, proceed to
b
.
Faulty:
Replace PCB.
b.)
Measure resistance between of Solenoid Valve 1 connectors.
Normal:
37~43

If normal, proceed to Solenoid Valve 3 (
F
4
) Circuit
Faulty:
Replace Solenoid 2.
.
3d). Solenoid Valve 3 (SV
3
) (F
4
)
Check Solenoid Valve 3 if error indicator “11” is displayed.
a.)
Disconnect Solenoid 3 connector
(F
4
)
and measure voltage between Yellow-Black.
Normal:
DC11~13V
If normal, proceed to
b
.
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
1
)
a.)
Disconnect Modulating Valve fasten terminals and measure voltage between terminals.(
E
2
)
Normal:
67~81

If normal, proceed to
b
.).
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.