IBC DC Series Installation And Operating Instructions Manual

IBC DC Series Installation And Operating Instructions Manual Manual pdf 61 page image

5-1TROUBLESHOOTINGDC SERIES BOILERS / WATER HEATERS DC 15-95, DC 15-96, DC 20-125, DC 33-1605.0 TROUBLESHOOTINGThe troubleshooting section is divided into 4 sections:5.1 Preliminary Checks5.2 Electronic Components5.3 Warnings and Faults5.4 Other FaultsOften, a problem can be identified and solved through simple checks of the basics:confirming the electrical power supply, gas flow and resetting the thermostatcontrol. To extend the cover of such preliminary checks, the boiler’s control moduleoffers a clear visual display of the status of the various control circuit components.Should a problem remain unsolved after applying the preliminary checks,proceed to the detailed system review, using the Troubleshooting Guide. TheGuide covers potential error conditions as grouped into the following categories:5.3.1 Warning Codes5.3.2 Fault Codes5.4.1 Burner does not Ignite5.4.2 Burner Ignites Noisily5.4.3 Burner Resonating5.4.4 The Power is Reduced5.4.5 No Space Heating5.4.6 Indoor Temperature Does Not Reach Desired Temperature5.4.7 No Hot Water (DHW)5.4.8 Hot Water Does Not Reach TemperatureBelow each section is a list of Symptoms, Diagnoses, and Remedies.Also provided with this manual are a number of diagrams (see Section 6.0) foruse with troubleshooting including:• Electrical Wiring Diagrams• Boiler / Water Heater Component Layout DiagramsPRELIMINARY CHECKSThe first step in troubleshooting this system should be a review of the Controller’sdisplay screen. There are a number of diagnostic features incorporated in thesoftware that evaluate system integrity, display error conditions and provide initialsuggested remedial actions.In addition to checking the display, the following list is a guideline for troubleshooting:1. Confirm power to the boiler: check that control module display is on (e.g.display is lit).2. Check that boiler / water heater is not in a safety lockout.3. Ensure wiring is clean and secure.4. Check that gas is reaching the unit.5. Confirm water system is properly charged to 12 psig and pump is serviceable.5.1NOTEThis boiler / water heateris equipped with a blockedvent shutoff system, whichcloses the gas supply upondetection of an irregularventing condition.