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”.
30
MAINTENANCE INFORMATION
Information relating to both the current and past operation of the water heater can be
obtained from the memory; this information is referred to as the maintenance information.
The table below details the information that can be recalled from the memory.
Left digit in LED display (Numerical)
-
Use DOWN (▼)arrow key on Remote Control
0
1
2
3
4
5
6
7
8
9
R
igh
t
di
gi
t
(A
lph
ab
etica
l)
–
U
se UP
(
►)
ar
row
ke
y
on
R
emo
te Co
nt
rol
E
Management
Number
Error Code for the previous 8 faults
Null
F
Null
Sequence number of the previous 8 faults
Null
C
Total combustion
starts X 10,000
Total combustion operations since last error X 10,000
Null
D
Total combustion
starts X 100
Total combustion operations since last error X 100
Null
H
Total combustion
period X 1000 hrs
Total combustion period since last error X 1,000 hours
Null
J
Total combustion
period X 10 hrs
Total combustion period since last error X 10 hours
Null
Y
F
lam
e s
en
s
or s
tat
us
(S
ee
t
ab
le b
el
ow)
W
at
er F
low
S
e
ns
or
Li
tr
es
/
mi
nu
te
A
mb
ie
nt
A
ir
Ther
mi
s
tor
tem
p.
º
C
W
at
er Inl
et
T
h
ermi
s
tor
tem
p.
º
C
Heat
E
x
c
ha
n
ge
r
T
he
rmi
s
tor
tem
p º
C
Hot
W
ate
r O
u
tl
e
t
T
he
rmi
s
tor
tem
p º
C
F
an
s
pe
e
d
X
10
0 R
P
M
P
ower
for P
.G
.F.R
V
al
v
e
Null
Null
A
Nul
l
Cont
ro
l L
ine
V
o
lta
ge
F
an
Det
ec
ti
v
e
V
a
lue
F
an
M
oto
r Curr
e
nt
F
an
M
oto
r
Cur
re
nt
C
ur
ve
(A
v
erage)
F
an
M
oto
r
Cur
re
nt
C
ur
ve
(A
fte
r c
los
ing
tap
)
F
an
M
oto
r
Cur
re
nt
C
ur
ve
(Comb
us
ti
on
)
Nul
l
Nul
l
S
eq
ue
nc
e
nu
mb
er
Eg: to view the current temperature being measured by the outlet thermistor select 5Y. Refer
to page 31 for the procedure to display maintenance information.
Flame Sensor Status
The chart below explains the maintenance information displayed at cell
0y:
0y display
00
01
X = Not detecting flame
O = Is detecting flame
Flame Rod 1
X
O
