Rinnai REU-2007W, Руководство по обслуживанию

Страница: 42 / 69

Infinity REU-2007,2008,2408,2424 - 37 - ©Rinnai
Refer to diagram on
bottom of previous page.
c. Check the voltage at centre PCB connector
F, green~green.
Normal: AC 16 ~ 20V
If normal, check item 3) below.
Faulty: Replace the transformer.
Note: Transformer voltage above applies
to the appliance in a standby, non-
functioning state.
3) Is the remote control normal?
Check voltage between the two remote
control cable conductors.
a. Check the voltage between terminals on
the remote control terminal mount (H
1
).
Normal: DC 10 ~ 13V
If normal, check for open circuit or
shorts before replacing the remote
control.
Faulty: Replace PCB.
No combustion (despite remote control indication)
a. Measure the voltage between red and
black of the relay connector (a
2
).
Normal: DC 11 ~ 13V
If normal, go to (b).
Faulty: Replace water flow control.
b. Measure the voltage between yellow and
black of the relay connector (a
2
)
Normal: DC 2 ~ 10V
If normal, go to 2).
Faulty: Replace the water flow sensor.