Chapter 7
Innovation Series Water Heaters
GF-128
Troubleshooting Guide
USER MANUAL
OMM-0079_0B
07/21/11 AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
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Ph: 800-526-0288
Page
73
of
200
CHAPTER 7. TROUBLESHOOTING GUIDE
7.1
INTRODUCTION
This troubleshooting guide is intended to aid service/maintenance personnel in isolating the cause of a
fault in a Innovation Water Heater. 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 7 of this manual for detailed RS232 communication set-
up and procedures.
When a fault occurs in the unit, 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 7-1 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 7.2 and Table 7-2 contain additional troubleshooting information which may apply when no
fault message is displayed.
If the fault cannot be corrected using the information provided in the Troubleshooting Tables, contact your
local AERCO Representative.
