AERCO BMK 3.0 LN Nat. Gas Jan 2011 - Manual (Page 59)

TROUBLESHOOTING
Chapter 8- TROUBLESHOOTING GUIDE
8.1 INTRODUCTION
This tr oubleshooting guide is intended to aid
service/maintenance per sonnel in is olating the
cause of a f ault in a Benc hmark 3.0 Boiler. The
troubleshooting procedures contained herein are
presented in tabular form on the following pages.
These tables are c omprised of thr ee c olumns
labeled: F ault Indic ation, Pr obable Caus e and
Corrective Ac tion. T he num bered item s in the
Probable Cause and Cor rective Ac tion c olumns
correspond to eac h other . F or ex ample,
Probable Cause No. 1 corresponds to Corrective
Action No. 1, etc.
NOTE:
The front panel of the C- More Contr ol Box
contains an RS232 por t which can be interfaced
to a laptop c omputer or other s uitable devic e.
This RS232 c ommunication f eature permits
service personnel to view m enu item s and data
logs which can be useful in isolating faults. Refer
to Chapter 9 of this m anual f or detailed RS232
communication set-up and procedures.
When a f ault oc curs in the Benc hmark Boiler ,
proceed as f ollows to is olate and c orrect the
fault:
1. Observe the fault messages displayed in the
Control Box display.
2. Refer to the F ault Indic ation c olumn in
Troubleshooting Table 8-1 which follows and
locate the F ault that bes t describes the
existing conditions.
3. Proceed to the Pr obable Cause column and
start with the first item (1) listed for the Fault
Indication.
4. Perform the checks and procedures listed in
the Cor rective Ac tion c olumn f or the first
Probable Cause candidate.
5. Continue checking each additional Probable
Cause f or the ex isting f ault until the fault is
corrected.
6. Paragraph 8.2 and T able 8- 2 c ontain
additional tr oubleshooting inf ormation w hich
may apply w hen no f ault message is
displayed.
7. If the f ault c annot be c orrected us ing the
information pr ovided in the Troubleshooting
Tables, contact y our loc al AERCO
Representative.
8-1