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Page SVC 820 Tankless Gas Trouble Shooting Manual
2
TABLE OF CONTENTS
General Information
Specifications
4
Sequence of Operations
5
1.
Ignition Sequence
6
2.
Monitoring Sequence
7
3.
Shutdown Sequence
8
Error Code Table
9
Components “Callouts”
15
Maintenance Mode “How To”
16
Control Board “Callouts”
18
Reset Procedure
21
Clearing Fault History
21
Error Code Diagnostics
No Error Code & No Hot Water
22
P1
Warning Code
23
1L
Warning Code
24
03
Error Code
25
05
Warning Code
26
10
Warning Code
29
11
Error Code
33
Gas Supply & Venting
33
Igniter Rod (Spark is NOT visible)
34
Flame Rod (Flame IS visible)
36
Gas Control Valve (Spark IS visible; Flame is NOT visible)
38
Control Board
40
12
Error Code
43
Gas Supply & Venting
43
Flame Rod(s)
44
13
Error Code
47
Venting
47
Ground
47
Flame Rod(s)
48
14
Error Code
50
15
Error Code
53
16
Error Code
54
24
Error Code
56
29
Error Code
59
31
Error Code
60
32
Error Code
62
Summary of Contents for PH2-20R DVSN
Page 158: ... 158 Schematic Disassembly PH2 20RDVS PH2 25RDVS PH2 28RDVS ...
Page 159: ... 159 Schematic Disassembly PH2 20RDVS PH2 25RDVS PH2 28RDVS ...
Page 160: ... 160 Schematic Disassembly PH2 20RDVS PH2 25RDVS PH2 28RDVS ...
Page 162: ... 162 Schematic Disassembly PH2 20ROF PH2 25ROF PH2 28ROF ...
Page 163: ... 163 Schematic Disassembly PH2 20ROF PH2 25ROF PH2 28ROF ...
Page 164: ... 164 Schematic Disassembly PH2 20ROF PH2 25ROF PH2 28ROF ...
Page 166: ...Schematic Disassembly PHH 32RDV PHH 25RDV 166 ...
Page 167: ...Schematic Disassembly PHH 32RDV PHH 25RDV 167 ...
Page 169: ... 169 Schematic Disassembly PHH 32ROF PHH 25ROF ...