Rinnai B20 Service Manual download pdf (Page 38)

REU-2532W Series 38 Rinnai

3) Is the remote control normal ?

Check voltage between the two remote control

cable connectors.

a. Check the voltage between terminals on

the remote control terminal mount D

1

.

Normal: 11 ~ 13 VDC

If normal, check for an open circuit or

short before replacing the remote control.

Faulty: Replace PCB.

No combustion (despite remote control indication)

1) Is the water flow sensor normal ?

Check the water flow sensor.

a. Check the voltage at PCB connector B

4,

red

and black wires.

Normal: 11 ~ 13 VDC or 5.8 ~ 6.4K Ω

If normal, check (b) below.

Faulty: Replace the PCB.

b. Check the voltage at PCB connector B

4,

yellow and black wires.

Normal: 4 ~ 7 VDC or 1M ~ 1.2M Ω.

If normal, proceed to check item 2 on next

page.

Faulty: Replace the water flow sensor.

1 2 ... 33 34 35 36 37 38 39 40 41 42 43 ... 71 72

Comments to this Manuals

No comments