Infinity REU-VRM3237WG / HD250e REU-VRM3237WC
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1
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Issue 1 - 19/05/09 ©Rinnai
4d.Solenoid Valve 3 (F
4
) Circuit
a.) Disconnect Solenoid connector, measure resistance between Yellow and Black.
Normal:
35 ~ 41 k
If normal, proceed to b).
Faulty:
Replace Solenoid Valve 3.
b.) Measure voltage between Yellow and Black of SV
3
connector.
Normal:
DC11 ~ 13 V
If normal, proceed to Modulating valve circuit.
Faulty:
Replace PCB.
4e.Modulating Valve (E
2
) Circuit
a.) Disconnect Modulating Valve terminal & measure resistance between pink terminals.
Normal:
67 ~ 81
If normal, proceed to b.
Faulty:
Replace Modulating Valve.
b.) Measure voltage between Pink and Pink of Modulating Valve fasten terminal.
Normal:
DC2 ~ 15V
If normal, proceed to c).
Faulty:
Replace PCB.
c.) Check the gas secondary pressure change when set temperature on the remote control
changes from 37 to 55
°
C.
Normal:
If secondary pressure changes, go to Water Flow Servo Circuit.
Faulty:
Replace Modulating Valve.
