Rinnai INFINITY REU-3203W Service Manual page 18

from previous page
Flame detected
(>1uA)
YES
Combustion indicator ON
Sparker OFF
Gas modulating control ON
14 Solenoid valve 2 ON
Solenoid valve 3 ON
15
Water flow control ON
16
Fan control normal
YES
Safety device normal
YES
B
NO
HEX outgoing
temp. > 95°C
YES
Main solenoid valve OFF
Solenoid valve 1 OFF
Solenoid valve 2 OFF
Solenoid valve 3 OFF
Modulating valve OFF
Combustion indicator OFF
Combustion fan OFF
(after 65 seconds)
NO
HEX outgoing
temp. < 60°C
YES
A
Infinity REU-3203W
from previous page
Max. fan revolution
Solenoid valve 1 OFF
Main solenoid valve OFF
NO
Modulating valve OFF
Ignition failure
< 2 times
Sparker OFF
NO
NO
Auto. fan
revolution control
YES
Input down
operation
NO
- 13 -
(2 seconds)
YES
NO
(after 4 secs)
Flame current abnormal
Thermal fuse activated
Outgoing water temperature
>105°C
Control circuit short
Outgoing thermistor faulty
HEX outgoing thermistor faulty
Modulating valve faulty
Combustion fan rotation
abnormal
Solenoid valve circuit faulty
Combustion faulty
from previous page
Modulating valve OFF
Solenoid valve 3 OFF
Solenoid valve 2 OFF
Solenoid valve 1 OFF
Main solenoid valve OFF
11 flashing
Combustion indicator OFF
12 flashing
14 flashing
16 flashing
12 flashing
32 flashing
33 flashing
52 flashing
61 flashing
71 flashing
10 flashing
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