Troubleshooting Procedures - Honeywell UDC2300 Product Manual

Troubleshooting/Service

10.7 Troubleshooting Procedures

Introduction
The troubleshooting procedures are listed in numerical order as they appear in Table 10-4.
Each procedure lists what to do if you have that particular failure and how to do it or
where to find the data needed to accomplish the task.
TROUBLESHOOTING MAY REQUIRE ACCESS TO
HAZARDOUS LIVE CIRCUITS, AND SHOULD ONLY BE
PERFORMED BY QUALIFIED SERVICE PERSONNEL. MORE
THAN ONE SWITCH MAY BE REQUIRED TO DE-ENERGIZE
Equipment needed
You will need the following equipment in order to troubleshoot the symptoms listed in
the tables that follow:
• DC Milliammeter – mAdc
• Calibration sources – T/C, mV, Volt, etc.
• Voltmeter
108
WARNING—SHOCK HAZARD
UNIT BEFORE SERVICING.
UDC2300 Controller Product Manual
!
12/00