Item - Rinnai INFINITYREU-V3232W Service Manual

Fault Finding Table
Code on Fault
Controller
Power
interruption
during
03 Bathfill. Water
will not flow
when power
restored.
Combustion
fan current too
10 high. Unit
operates, then
stops.
No ignition.
Unit stops
11
without flame
igniting
Flame Failure /
Earth Leakage
12
Thermal fuse
and/or
overheat
14 switch
activated. Unit
operates, then
stops.
Over
temperature
warning. Unit
operates, then
stops.
16
Outlet water
32 thermistor
flow
Heat
exchanger
33
thermistor
error
Modulating
solenoid valve
52 fault. Unit
stops without
flame ignition.
Combustion
61 fan rotation
error
Water flow
control device
error. Water
flow is not
65
controlled.
Water
temperature
too low.
Infinity REU-V3232W /HD250E REU-V3232WC
Flow Action
Chart
No.
1. Turn off all hot water
taps.
1. Press the ON/OFF
button on a controller
twice.
6, 18 1. Check blockage of air
intake/flue outlet.
2. Check combustion fan.
21, 17, 1. Check gas supply
19
2. Check sparker unit
3. Check gas valves
21, 18, 1. Check gas supply
19
2. Check flame rod
3. Check earth wire lead
4. Check remote control
19 1. Check thermal fuse
2. Check overheat switch
IMPORTANT- If thermal fuse or overheat switch were faulty :
a. Check heater for damage
b. Confirm "Gas Type" and "Combustion" dip switch settings (page 20).
c. Confirm test point pressures (page 39).
19, 20 1. Confirm "Gas Type" and
"Combustion" dip switch
settings (page 20)
2. Confirm test point
pressure (page 39)
3. Check gas valves
4. Check water flow sensor
5. Check water flow servo
6. Check heat exchanger
outlet temperature
thermistor
7. Check hot water outlet
temperature thermistor
1, 19 Check hot water outlet
thermistor
1, 19 Check heat exchanger
thermistor
12, 19 Check modulating solenoid
valve
6, 18, Check combustion fan
21
19 Check water flow servo
'Component Dismantling
Check' and

Item

'Circuit Value'
Items
1 5
2 4
3 8 and or 9
4
5
15
6 11
7 11
3. a) - 3. d) 8 and or 9
8 3
9 3
10 6
11 6
11 6
10 6
3. e) 9
1 5
9 3
- 23 -
Wiring Maintenance
Diagram Monitor Item
Item
C 5 and 9
1
J
6
F , I , I , I ,
3 1 2 3
I
4
A
1
J , PCB,
7
Power
Supply
Lead
H 06
1
F1
F2
F , I , I , I ,
3 1 2 3
I
4
E 01
3
B 07
2
E 11
2
E 02
1
E 02
1
E 11
2
F
3
C 05 and 09
1
B 07
2
Issue 1 - 8/09/03 ©Rinnai