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Manuals and User Guides for Rheem RTG74. We have
1
Rheem RTG74 manual available for free PDF download: Troubleshooting Manual
Rheem RTG74 Troubleshooting Manual (82 pages)
Tankless
Brand:
Rheem
| Category:
Water Heater
| Size: 3.57 MB
Table of Contents
Table of Contents
2
Specifications Common to All Product Lines
5
Product (Model) History
6
Sequence of Operations
8
Sensors and Safety
9
Oxygen Depletion Sensing System Operation
9
How to Reset the Four (4) Hour ODS Timer
10
Overheat Film Wrap
10
Heat Exchanger Thermistor
11
Maintenance Panel Display
11
Clearing the Fault History
12
Adjusting the Burner Control Assembly (Printed Circuit Board)
12
How to Check Manifold Gas Pressure
13
Program Chip Adjustment
14
Changing the Maximum Temperature Setting to 140
15
Changing the Maximum Temperature Setting to 120
15
Error Codes
16
Diagnostic Points on Printed Circuit Board
19
Thermistor Resistance Chart
20
Fan Speed Chart
21
Rtg2-42
22
Wiring Diagram
22
Printed Circuit Board
23
Rtg 53
24
Wiring Diagram - RTG 53
24
Printed Circuit Board - RTG 53
25
Rtg 66
26
Wiring Diagram
26
Printed Circuit Board
27
Error Code 11 (RTG66 Only)
28
Error Code 51 (RTG 66 Only)
31
Error Code 61 (RTG 66 Only)
32
Error Code 65 (RTG66 Only)
33
Code 65 Water Volume Control Fault
33
Error Code 66 (RTG66 Only)
34
Rtg 74
35
Wiring Diagram - RTG 74
35
Printed Circuit Board - RTG 74
36
MIC-180 & EZ Link
37
MIC-180 Printed Circuit Board
37
Error Code 03 (MIC-180 & Ezlink Only)
38
Test Run Mode
38
MIC 180 Maintenance Mode Table
39
Maintenance Information Mode
39
2Nd Generation Flame Rod Chart
40
Troubleshooting
41
Troubleshooting Format and Example
41
Unit will Not Power on
42
Error Code 00
45
Warning Code 05
45
Warning Code 10
46
Error Code 11
46
Error Code 12
50
Error Code 13
51
Error Code 14
52
Code 14 Overheat Film Wrap Activated
52
Error Code 15
53
Error Code 16
54
Error Code 21 (Indoor Models Only)
54
Error Code 24
55
Error Code 29
55
Error Code 31
55
Error Code 31
56
Error Code 32
56
Error Code 33
57
Error Code 34
57
Error Code 35
58
Error Code 38
58
Error Code 51
58
Error Code 52
59
Error Code 61
60
Error Code 65
60
Code 65 Water Volume Control Fault
60
Error Code 66 (RTG66 Only)
61
Error Code 71
61
Error Code 72
61
Error Code 76
62
Error Code 79
62
Error Code 80/81
62
Error Code 82
62
Code 76 Communication Fault with Remote
62
Code 79 Fan Motor Current Fault
62
Error Code 90
63
Error Code 99
64
Warning Code IL
64
Warning Code P1
65
Disassembly and Repair
65
St Generation 7.4 Product Series
65
Printed Circuit Board (PCB)
65
Disassembly/Repair 1St Generation 7.4 Series
65
Air Filter Switch
66
Water Inlet Solenoid
66
Hot Water Outlet
67
Transformer
67
Fan Assembly
68
Proportional Gas Flow Regulator
69
Burner Plate Cover
70
Burner Assembly
70
Igniter and Igniter Probes
71
Flame Rod(S)
71
Heat Exchanger Thermistor
71
Parts
72
Parts Exploded View for RTG2-42PV and RTG 53PV
75
Parts Exploded View for RTG 53X
76
Parts Exploded View for RTG 53DV
77
Parts Exploded View for RTG 66DV
78
Parts Exploded View for RTG 74PV and GT 199PV
79
Parts Exploded View for RTG 74DV and GT 199DV
80
Parts Exploded View for RTG 74X and GT 199X
81
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