AERCO BMK 1.5 LN Dual Fuel Feb 2013 - Manual (Page 89)

PR2: 05/01/11 Page 89 of 162
Benchmark 1.5LN Dual-Fuel Low NOx Boiler
Operation and Maintenance Manual
OMM-0041_0C
GF-121
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 • Ph: 800-526-0288
CHAPTER 8: TROUBLESHOOTING GUIDE
8.1 INTRODUCTION
This troubleshooting guide is intended to aid service/maintenance personnel in isolating the
cause of a fault in a Benchmark 1.5 Dual-Fuel Boiler. The troubleshooting procedures contained
herein are presented in tabular form on the following pages. These tables are comprised of
three columns labeled: Fault Indication, Probable Cause and Corrective Action. The numbered
items in the Probable Cause and Corrective Action columns correspond to each other. For
example, Probable Cause No. 1 corresponds to Corrective Action No. 1, etc.
NOTE
The front panel of the C-More Control Box contains an RS232
port which can be interfaced to a laptop computer or other
suitable device. This RS232 communication feature permits
service personnel to view menu items and data logs which can
be useful in isolating faults. Refer to Chapter 9 of this manual
for detailed RS232 communication set-up and procedures.
When a fault occurs in the Benchmark Boiler, proceed as follows to isolate and correct the fault:
1. Observe the fault messages displayed in the Control Box display.
2. Refer to the Fault Indication column in Troubleshooting Table 8-1 which follows and
locate the Fault that best describes the existing conditions.
3. Proceed to the Probable Cause column and start with the first item (1) listed for the Fault
Indication.
4. Perform the checks and procedures listed in the Corrective Action column for the first
Probable Cause candidate.
5. Continue checking each additional Probable Cause for the existing fault until the fault is
corrected.
6. Paragraph 8.2 and Table 8-2 contain additional troubleshooting information which may
apply when no fault message is displayed.
7. If the fault cannot be corrected using the information provided in the Troubleshooting
Tables, contact your local AERCO Representative.