750-96 (revised 2010)
Model CB Packaged Boiler Manual
6-1
CHAPTER 6 Troubleshooting
6.1 — Overview
This chapter assumes that the unit has been properly installed and adjusted, and that it has been running for some
time. It is further assumed that the operator has become thoroughly familiar with both burner and manual by this
time. The points under each heading are set down briefly as possible causes, suggestions, or clues to simplify
locating the source of trouble. Methods of correcting the trouble, once it has been identified, may be found else-
where in this manual.
If the burner will not start or operate properly, this troubleshooting section and the technical bulletin should be
referred to for assistance in pinpointing problems that may not be readily apparent.
The program relay has the capability to self-diagnose and to display a code or message that indicates the failure
condition. Refer to the control bulletin for specifics and suggested remedies.
Familiarity with the programmer and other controls in the system may be obtained by studying the contents of this
manual and the bulletin. Knowledge of the system and its controls will make troubleshooting much easier.
Troubleshooting should be performed only by personnel who are familiar with the equipment and who have
read and understand the contents of this manual. Failure to follow these instructions could result in serious
injury or death.
Disconnect and lock out the main power supply in order to avoid the hazard of electrical shock. Failure to fol-
low these instructions could result in serious injury or death.
NOTE: The make or model of the program relay provided will vary depending upon job specifications. The fol-
lowing sequence applies regardless of the make or model. Please refer to the Wiring Diagram (WD) prepared
by Cleaver-Brooks for your specific installation.
Courtesy of: C3 Surplus LLC
Surplus Industrial Superstore
305-428-2777
https://www.c3surplus.com
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