Rheem 862 27 Series - Page 35

TM049 27L Continuous Flow Service Instructions
REV AL – Issued April 2019
This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed “uncontrolled”.
35
F
F1
11 Flashing
Operational Flow Chart 2
S.V. 2 (SV2) on13
P.G.F.R Valve on9
S.V. 1 (SV1) off
Igniter off
P.G.F.R Valve off
S.V. 3 (SV3) off
S.V. 2 (SV2) off
I.U.I. Off
Leakage >
than 0.1uA
NO
3 seconds later
NO
P.G.F.R Valve off
YES
G.I.S.V (SVO) off
S.V. 1 (SV1) off
S.V. 2 (SV2) off
S.V. 3 (SV3) off
I.U.I on
Igniter off
YES
Proportional temperature
adjustment
Gas rate change-over
done by solenoid valves
Hot water volume adjustment
14
Solenoid bypass valve on Solenoid bypass valve off
YES
NO
10 Flashing
YES
3
31 Flashing 32 Flashing 33 Flashing 34 Flashing 35 Flashing 79 Flashing 14 Flashing 29 Flashing
99 Flashing16 Flashing 71 Flashing 76 Flashing 61 Flashing 81 Flashing 65 Flashing 52 Flashing
NO
NO
YES
Outlet water
temp exceeded
97ºC for more
than 15 seconds
15 Flashing
Water inlet
thermistor
disconnected
Outlet water
temperature
too high
Heat
Exchange
outlet temp too
low
Abnormal
combustion
Heat
exchanger
thermistor
disconnected
O.H.L failure
Fan motor
current
detection
failure
Thermistor
connections
crossed
Ambient air
thermistor
disconnected
Outlet
thermistor
disconnected
G.I.S.V control
failure
Communication
problem between
remote controller
and water heater
Abnormal fan
speed
Post purge
failure
Malfunction of
water volume
control motor
P.G.F.R
control failure
A
Flame Detected?
Set temp.
46ºC or lower?
Low rate
combustion?
Heat exchange
outlet temp too
low?
05 Flashing
YES
NO
Ignition
Failure
Flame
Failure
I.U.I. Off
First Ignition
Trial?
11 Flashing
12 Flashing
NO
S.V. 1 (SV1) off
P.G.F.R Valve off
S.V. 3 (SV3) off
S.V. 2 (SV2) off
YES
E
Safety device
working?
First ignition
trial?
S.V. 1 (SV1) on12
Igniter off
G.I.S.V (SVO) off
66 Flashing
Malfunction of
water bypass
control motor