REU-2532W Series 42 Rinnai
9) Is the change over solenoid (SV3) operating normally?
If error “11” or “71” is displayed, check the change
over solenoid (SV3).
a. # Disconnect the changeover solenoid (SV3)
connector, and measure the resistance at the solenoid
terminals.
Normal: 1.7 – 2.1 KΩ
If normal, check b below.
Faulty: Replace the changeover solenoid (SV3).
b. Measure the voltage at the changeover solenoid
(SV3), brown – black wires.
Normal: 80 – 100 VDC
If normal, reconfirm gas pressures are correct..
Faulty: Replace the PCB unit.