Infinity REU-3203W
- 23 -
©Rinnai
65
Water flow
control device
error. Water
flow is not
controlled.
Water
temperature
too low.
19
Check water flow servo
9
3
B
2
07
71
Solenoid
valve circuit
error. Unit
does not
operate.
19
Check gas valves
3
8 and or 9
F
3
, I
1
, I
2
,
I
3
, I
4
72
Flame rod
circuit error.
Unit does not
operate.
19
Check flame rod
4
8
A
1
-
Appliance
does not
operate at all.
No display on
the remote
controllers (if
fitted).
-
1. Check power cord
plugged in and supply
turned on.
J7
2. Check power supply
voltage.
12
J7
3. Check electrical fuse.
13
4. Check transformer.
14
7
A
2
, A, D
5. Check gas valves
3. a) - 3. d)
8 and or 9
F
3
, I
1
, I
2
,
I
3
, I
4
6. Check sparker unit.
2
4
J
6
7. Check earth leads and
connections.
5
J
7
, PCB
and power
supply lead
8. Check for short
circuits.
9. Check remote
controller(s) - if fitted.
16
H
1
06
-
No
combustion
despite
remote
control
indicating that
combustion is
occuring - if
remote
controller(s)
fitted)
-
1. Check water flow
sensor.
8
3
E
3
2. Check flame rod.
4
??
A
1
3. Check heat exchanger
outlet thermistor.
10
6
E
2
11
4. Check hot water outlet
thermistor.
11
6
E
1
02
5. Check combustion fan.
1
5
C
1
5 and 9
6. Check the sparker unit.
2
4
J
6
7. Check gas valves.
3. a) - 3. d)
8 and or 9
F
3
, I
1
, I
2
,
I
3
, I
4
8. Check thermal fuse.
6
11
F
1
9. Check overheat switch.
7
11
F
2
IMPORTANT - If thermal fuse or overheat switch were faulty:
a) check heater for damage;
b) confirm “Gas Type” and “Combustion” dip switch settings;
c) confirm test point pressure.
-
Combustion
stops during
operation.
-
1. Check gas supply
2. Check flame rod
4
8
A
1
3. Check earth leads and
connections.
5
J
7
, PCB
and power
supply lead
-
Cannot adjust
the hot water
temperature
via the
controller(s) -
only if
controller(s)
fitted.
-
1. Check hot water outlet
thermistor.
11
6
E
1
02
2. Check heat exchanger
outlet thermistor.
11
6
E
1
02
3. Check gas valves
3. a) - 3. d)
8 and or 9
F
3
, I
1
, I
2
,
I
3
, I
4
4. Check water flow
servo.
9
3
B
2
07
5. Check bypass servo.
15
3
B
1
12
-
Anti-frost
heater does
not operate.
-
1. Check anti-frost heater
components
16
J
1
, J
3
, J
4
, J
5
, J
8
2. Check frost sensing
switch
17
J
2
Summary of Contents for INFINITY REU-3203W
Page 1: ...INFINITY REU 3203W Infinity High Capacity Continuous Flow Gas Hot Water System SERVICE MANUAL...
Page 12: ...Infinity REU 3203W 7 Rinnai 4 Dimensions A Gas 41 Cold Water 51 Hot Water 42 Power 27...
Page 16: ...Infinity REU 3203W 11 Rinnai 7 Cutaway Diagram...
Page 54: ...Infinity REU 3203W 49 Rinnai 21 Exploded Diagram...
Page 55: ...Infinity REU 3203W 50 Rinnai...
Page 56: ...Infinity REU 3203W 51 Rinnai...
Page 57: ...Infinity REU 3203W 52 Rinnai...
Page 61: ...Infinity REU 3203W Rinnai Notes...
Page 62: ...Infinity REU 3203W Rinnai...
Page 63: ...Infinity REU 3203W Rinnai...
