Benchmark 750-3000 Boiler Operation, Service, Maintenance Guide - KOREA
SECTION 5 – TROUBLESHOOTING GUIDE
OMM-0128_0A
AERCO International, Inc.
•
100 Oritani Dr.
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Blauvelt, NY 10913
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07/17/2017
SECTION 5:
TROUBLESHOOTING GUIDE
5.1 INTRODUCTION
This troubleshooting guide is intended to aid service/maintenance personnel in isolating the
cause of a fault in Benchmark 750 through 3000 boilers. 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.
When a fault occurs in the unit, proceed as follows to isolate and correct the fault:
Fault Correction Instructions
1. Observe the fault messages displayed in the C-More Controller display.
2. Refer to the Fault Indication column in Troubleshooting Table 5-1 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. Section 5-2 contains additional troubleshooting information which may apply when a no fault
message is displayed.
If the fault cannot be corrected using the information provided in the Troubleshooting Tables,
contact your local AERCO Representative.
NOTE:
The front panel of the C-More Controller contains an RS232 port. This port is used only by
factory-trained personnel to monitor onAER communications via a portable computer.
