Rinnai B20 Manuel de service télécharger pdf (Page 41)

REU-2532W Series 41 Rinnai

6) Is the main gas solenoid valve (SV0) operating normally ?

If error “11” or “71” is displayed, check the main

gas solenoid valve.

a. # Disconnect the main gas solenoid valve (SV0)

connector and measure the resistance at the

solenoid terminals.

Normal: 1.7 ~ 2.1 KΩ

If normal, check b below.

Faulty: Replace the main gas solenoid valve.

b. Measure voltage at the main gas solenoid (SV0)

Pink and black wires.

Normal: 80 ~ 100 VDC

If normal, proceed to check item 7 below.

Faulty: Replace PCB unit.

7) Is the change over solenoid (SV1) operating normally ?

If error “11” or “71” is displayed, check the change

over solenoid (SV1).

a. # Disconnect the change over solenoid (SV1)

connector, and measure resistance at the

solenoid terminals.

Normal: 1.7 ~ 2.1 KΩ

If normal, check b below.

Faulty: Replace the change over solenoid (SV1).

b. Measure voltage at the change over solenoid

(SV1) yellow ~ black wires.

Normal: 80 ~ 100 VDC

If normal, check 8 below.

Faulty: Replace PCB unit.

8) Is the change over solenoid (SV2) operating normally?

If error “11” or “71” is displayed, check the change

over solenoid (SV2).

a. # Disconnect the changeover solenoid (SV2)

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 (SV2).

b. Measure the voltage at the changeover solenoid

(SV2), blue – black wires.

Normal: 80 – 100 VDC

If normal, check 9, on next page.

Faulty: Replace the PCB unit.

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Rinnai B20 Manuel de service Page 41

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