2 | P a g e S V C 8 2 0 ( P ) P o c k e t M a n u a l
2
TABLE OF CONTENTS
General Information
Installation Guidelines……………………………………………….. 8
Mid & High-Efficiency Flow Rates…………………………….. 12
Control Board Connectors………………………………………… 14
Diagnostic Points (Voltage & Resistance Readings)……16
Maintenance Mode Instructions………………………………. 21
Altitude Settings on Control Board…………………………… 25
Reset Procedures……………………………………………………..26
Clearing Fault History……………………………………………….27
Error Code Diagnostics
No Error Code & No Hot Water 28
P1 Warning Code 31
1L Warning Code 32
03 Error Code 34
05 Warning Code 35
10 Warning Code 37
11 Error Code 40
12 Error Code 46
13 Error Code 48
14 Error Code 50
15 Error Code 52
16 Error Code 53
24 Error Code 54
29 Error Code
High-Efficiency ONLY (A)…………………………….. 55
Mid & High-Efficiency (B)…………………………… 56
31 Error Code 58
32 Error Code 60
33 Error Code 62
34 Error Code 64
35 Error Code 66
51 Error Code 67
52 Error Code 70