High-Efficiency Commercial Gas Series - Service Manual
Technical Literature Department
17
Ashland City, Tennessee © 2008
Servicing should only be performed by a Qualified Service Agent
FAULT AND WARNING CONDITIONS – ADVANCED DIAGNOSTIC INFORMATION
The water heater control system has the ability to
monitor almost all aspects of the water heater's
operation. In the case that there is an undesirable or
unsafe condition that occurs, the control system will
detect this condition and determine the appropriate
action. The water heater control will display the
information on the desktop in plain text that accurately
describes the condition and diagnostics information
that can be used to correct the issue.
There are two types of conditions that can occur
during operation. These are
Warnings and Faults:
Warnings:
This is a non-safety related condition that
the control has detected that may cause the water
heater to operate in a less than optimal condition, but
does not pose a safety concern.
NOTE:
When these conditions occur, continued
heating cycles will continue and the heater will attempt
to regulate the water in the tank to the
Operating Set
Point.
Example of a Warning:
Faults:
This is a safety related condition that has been
detected by the control system.
NOTE:
When these conditions occur, the water heater
WILL NOT CONTINUE
any further heating cycles and
the water will no longer be heated until the condition is
corrected and, in most cases, power has been cycled.
Example of a Fault:
Advanced Diagnostic Information
When a fault or warning has been declared, advanced
information can be found by pressing the Advanced
button, there more detailed information can be found
regarding diagnosing and resolving the problem.
WARNING: Usage of the Advanced information
requires ability equivalent to that of a licensed
tradesmen in the field involved.
