REU-2532FFU 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.
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