Rheem 871018 Service Instructions Manual page 26

F
11 G . I . S . V ( SVO ) on
12 Igniter on
P . G . F . R Valve off
13 S . V . 1 ( SV 1 ) on
14 S . V . 2 ( SV 2 ) on
10 P . G . F . R Valve on
Flame
16
Detected ?
3 seconds later
Leakage >
than 0 . 1 uA
YES
[ on ] displayed
C . I . on
Igniter off
Proportional temperature
adjustment
Hot water volume
3
adjustment
821018, 821020, 821026, 871026-B
871024-B , 871024-C
Mechanical Bypass Models
NO
Low rate
combustion ?
YES
10 Flashing
Safety
device
working ?
Z
TM031 Integrity 18, 20, 24, 26L Service Instructions REV: B
D.O.I: February 2008
This document is stored and maintained electronically by
Igniter off
S . V . 2 ( SV 2 ) off
S . V . 1 ( SV 1 ) off
0 . 1 seconds later
G . I . S . V ( SVO ) off
P . G . F . R Valve off
YES
First
NO ignition
trial ?
NO
11 Flashing
Igniter off
Gas rate change - over
done by solenoid valves
Set
temp . 46 degrees
or lower ?
19
YES
Solenoid bypass Solenoid bypass
valve o n
NO
79 Flashing 14 Flashing 15 Flashing
Fan motor
Outlet water
temp exceeded
current
O . H . L failure 97 degrees for
detection
more than 15
failure
seconds
YES
Note: see page 24 for details on interpreting chart abbreviations.
Operational Flow Chart 3
F 1
G . I . S . V ( SVO ) off
S . V . 1 ( SV 1 ) off
S . V . 2 ( SV 2 ) off
S . V . 3 ( SV 3 ) off
P . G . F . R Valve off
C . I . Off
NO
16 Flashing 71 Flashing 76 Flashing
valve off
Communication
Outlet water
G . I . S . V control problem between
temperature
remote controller
failure
too high
and water heater
31 Flashing 32 Flashing 33 Flashing
Heat
Water inlet Outlet
exchanger
thermistor thermistor
thermistor
disconnected disconnected
disconnected
26
Service. All printed copies not bearing this statement in RED are deemed "uncontrolled"
61 Flashing 81 Flashing 65 Flashing
Malfunction of
Abnormal fan Post purge
water volume
speed failure
control motor
34 Flashing 35 Flashing 11 Flashing 12 Flashing
Ambient air Thermistor
Cross light
thermistor connections Flame Failure
failure
disconnected crossed
52 Flashing 99 Flashing
P . G . F . R Abnormal
control failure combustion
56 Flashing
Malfunction of
water by - pass
solenoid valve .