Operational Flow Chart - Rinnai INFINITYREU-V3232W Service Manual

8. Operational Flow Chart

Insert po we r plug
1
Safety device normal
YES
Water flow control device
2
fully open
Bypass flow control device
3
fully open
4
Remote control normal
YES
ON/OFF switch ON
ON/OFF indicator ON
Hot water tap open
A
(a)
Water flow sensor ON
5
2.7 L/min or more
YES
Set HW temp
50°C or more
YES
Bypass control closed
Combustion fan ON
6
Fan rotaion
detected normal
YES
Initial check normal
YES
11
Sparker ON
Fan revolves for ignition
12 Main solenoid valve ON
Solenoid valve 1 ON
13
Modulating valve ON
cont. next page
Infinity REU-V3232W /HD250E REU-V3232WC
NO
NO
Hot water temp.
= fixed temp.
NO
NO
6
Combustion fan rotation
abnormal (12.5 secs after (a))
Air supply and combustion air
Control circuit short
7
False flame sensed
Solenoid valve circuit faulty
NO
8
Modulating valve faulty
NO 9
Outgoing thermistor faulty
9
HEX outgoing thermistor faulty
10
Thermal fuse activated
Overheat switch activated
cont. next page
- 14 -
(after 5 seconds)
61 flashing
10 flashing
duct blocked
12 flashing
72 flashing
71 flashing
52 flashing
32 flashing
33 flashing
14 flashing
Cause eliminated
Remove power plug from socket
Water flow control device
fully open
Bypass flow control device
fully open
ON/OFF indicator OFF
ON/OFF switch OFF
Error code indicator OFF
Water flow sensor OFF
Hot water tap closed
Combustion fan OFF
cont. next page
Issue 1 - 8/09/03 ©Rinnai