CT2000GD Troubleshooting Flow Chart
Contents
1. 2 34VDC Yes Faulty Gas Solenoid Gas Valve Open System OK Gas leak Does unit report gas detected No Does unit report EM Stop No Yes Problem with Gas Detector wiring or missing link if detector not used Yes Check that any of the EM Stop Buttons are not activated and front EM Stop Button plugged into the PCB l Problem with remote EM Stop wiring or missing link if remote EM Stop not used2. No Check Mains Supply CT2000GD Troubleshooting Flow Chart Connect Power No Call S amp S if Mains present and no Power LED Call S amp S out disconnect all wires from terminal blocks but Power In 12DC out on terminal block Reconnect wires one by one to identify the problem Power LED _Yes On Turn the key switch On 40VAC on the Yes Power In terminal block 12DC out on Yes No Both Fan 5n Yes erminal block LEDs On Check onboard fuse check grey flat Check all key cable pushed in Check all key switches plug in properly switches plug in Check grey flat cable Check grey flat cable pushed in properly pushed in properly Ser Disconnect all wires ies hen from terminal blocks no Power if still no 12VDC but Powgr In Call S amp S if no Fan LEDs and key switch On No Pressure Sensor wiring wrong or no gas supply Is voltage between and IN on pressure sensor Does unit report Fan Fault Does unit report Test Fail Does unit report pressure low No No No Yes Yes Yes Problem with Gas pressure PD switches below 12mbar or wiring Yes Is 12VDC between and on pressure No sensor input Pressure Sensor wiring wrong input gt
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