Rinnai REU-2007W, Руководство по обслуживанию

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Infinity REU-2007,2008,2408,2424 - 45 - ©Rinnai
* $
Before starting inspection, re-check wiring harnesses and double check that all connections are tight.
Before carrying out checks marked with
* , remove power cord from wall plug.
Nature of Fault
Examination
Point
Diagnostic Point Values Y/N Action
Repair
N
o
A. The ON
indicator does not
light up after
switching the unit
on.
1. Is the power cord
plugged in?
Inspect visually Is it plugged in? Yes Go to A-1.
No Plug in cord 1
2. Is supply voltage
correct?
Measure voltage at
power point. AC 240 V
(NZ 230 V) Yes Go to A - 3.
No Check power
supply circuit.
Check fuses. 2
3. Check 3 Amp
electrical fuses. *Inspect visually Is the surge
protector
indicator lit up Yes Go to A-5
No Go to A-6
4. Check 3 Amp
electrical fuses.
* Disconnect and
measure resistance to
confirm if fuse is blown.
Normal< 1 M
Is fuse blown? Yes Go to A - 5 and
replace fuse.
No Go to A - 6.
5. Check for short
circuits.
i) Measure the resistance
of each solenoid valve.
* Remove connector I
from the PCB before
measuring.
Pink - Black
0.9 ~ 1.3 k
Yellow - Black
1.3 ~ 1.9 k
Blue - Black
1.5 ~ 1.9 k
Are values within
those specified at
left?
N.B. Measure
after checking that
there are no
broken wires or
shorts. Yes Go to A-6-2)
No Replace faulty
solenoid valves.
ii) Measure the sparker
resistance.
* Disconnect the sparker
connector I
4
and
measure the resistance
between both terminals.
Is resistance >
1M Yes Go to A-5-iii)
No Replace sparker 4
iii) Check wiring Are there any
shorts? Yes Rectify/Replace 5
No Replace PCB 6
6. Check 240V-
100V transformer.
i) Measure voltage
between red-red A
1
connector.
AC 90~110 V Yes Go to A-6-ii)
No Replace PCB.
ii) Measure voltage at
connectors A, F with
appliance on “standby”.
A, Green-Green
AC16 ~ 20 V
F, Orange-Orange
AC13 ~ 30 V
F, Brown-Grey
AC30 ~ 50 V
F, Yellow (LH)-Grey
AC180 ~ 220 V
Are values within
those specified at
left? Yes Go to A-7.
No Replace 240V
transformer. 8
7. Check the remote
control (where
connected).
Measure voltage
between the control
terminals at H
1
.
DC10 ~ 13 V. Yes Check cable for
shorts/broken
wires; replace
remote control. 9
No Replace PCB. 10
Ω
Ω
Ω
Ω
Ω