Corrective Action - Rheem AdvantagePlus HE55-100N Use & Care Manual

Table 6-2: AdvantagePlus
Resistance Table for Supply
Temperature Sensor
High/Low Temp. Resistance
Sensor Temp.
32°F (0ºC)
41°F (5ºC)
50°F (10ºC)
59°F (15ºC)
68°F (20ºC)
77°F (25ºC)
86°F (30ºC)
95°F (35ºC)
104°F (40ºC)
113°F (45ºC)
122°F (50ºC)
131°F (55ºC)
140°F (60ºC)
149°F (65ºC)
158°F (70ºC)
167°F (75ºC)
176°F (80ºC)
185°F (85ºC)
194°F (90ºC)
202°F (95ºC)
212°F (100ºC)
Table 6-3: 926 Control Board Error Codes
Code
Combustion Fan
Speed Low. The
(ohms)
combustion air fan
¢
E13
32550
speed less than
70% of expected.
25340
Combustion Fan
19870
Speed High. The
15700 combustion air fan
¢
E14
speed is more than
12490
130% of expected.
10000
Water level in tank
¢
8059
LE0
is low
6535
5330
Blocked Vent
Pressure Switch
¢
FLU
4372
Open
3605
2989
2490
2084
1753
1481
1256
1070
915
786
667
24 VAC low
¢
LOU
Description Duration
60 Sec.
60 Sec.
Until
Corrected
Until
Corrected
Until
Corrected
25

Corrective Action

1. Check the combustion air fan wiring.
2. Replace the combustion air fan.
3. Replace the control board.
1. Check the combustion air fan wiring.
2. Replace the combustion air fan.
3. Replace the control board.
1. Be sure all air is bled from system.
2. Inspect low level switch and wiring for
damage and repair as necessary.
1. Assure that the vent is not blocked
2. Check the blocked vent pressure
switch operation by applying a jumper.
(If the switch is not functioning properly,
replace it.)
1. Check line voltage. Must be between
100-128 VAC.
2. If available, connect PC and using
AdvantagePlus service software check
the 24 VAC supply display in the lower
left corner of the screen. The number
displayed here must be greater than
128 and should be greater than 250.
Use this as a troubleshooting guide as
you follow the steps below.
3. Remove 10 pin Molex connector from
customer connection board. If LOU
code clears, then the problem is with
external sensor wiring. Examine
external sensor wiring for shorts to
ground repairing as necessary. If LOU
code is still present and the boiler is so
equipped, disconnect high gas
pressure switch, then low gas pressure
switch, then UL 353 low water cutoff in
this order one at a time to see if LOU
code clears. Replace faulty part. Check
low voltage wire harness in boiler for
shorts to ground.
4. If LOU only occurs when burner tries to
light, check gas valve for excessive
current draw.
5. If LOU is present with the low voltage
harness disconnected from the 926
control board, replace the 926 control
board.