Traulsen G Series Service Manual page 3

4.10 Defrost Interval ..................................................................................................................................................... 35
4.11 Diagnostic Menu ................................................................................................................................................... 36
4.12 Control Cover Removal & Components ................................................................................................................ 39
4.12.1 Removing the Display:................................................................................................................................... 39
4.12.2 Installing the Display: .................................................................................................................................... 39
4.12.3 Accessing the Power Module (Control Board): ............................................................................................. 40
4.13 Power Module Connections Overview ................................................................................................................. 41
4.14 Power module Led's & Reset Button Overview: ................................................................................................... 42
5. Sensor Location ............................................................................................................................................................. 44
5.1 Sensor Control Value Test ..................................................................................................................................... 46
5.2 Sensor Resistance Test .......................................................................................................................................... 47
6. Troubleshooting ............................................................................................................................................................ 48
6.1 Condensate Overflow Troubleshooting ................................................................................................................ 48
6.1.1 Condensate Overflow: .................................................................................................................................. 48
6.2 Compressor Troubleshooting ................................................................................................................................ 49
6.2.1 Terminology: ................................................................................................................................................. 49
6.2.2 Accessing the Compressor: ........................................................................................................................... 50
6.2.3 Compressor Not Running: ............................................................................................................................. 51
6.2.4 Testing the Windings of the Compressor ...................................................................................................... 51
6.2.5 Resistance and Amp Values of G-Series Compressors: ................................................................................. 51
6.2.6 Troubleshooting External Overload Protector: ............................................................................................. 51
6.2.7 Measuring for Excessive Voltage Drop: ........................................................................................................ 52
6.2.8 Troubleshooting Potential Relay: .................................................................................................................. 52
6.2.9 Troubleshooting Start Capacitor (Black Plastic Casing): ............................................................................... 52
6.2.10 Troubleshooting Run Capacitor (Metal Casing): ........................................................................................... 52
6.2.11 Locked Up Compressor: ................................................................................................................................ 53
6.2.12 Current Climbs Above RLA: ........................................................................................................................... 53
6.2.13 Replacing the Compressor: ........................................................................................................................... 54
6.2.14 Compressor Wiring Schematics: ................................................................................................................... 55
6.2.15 Compressor Short Cycles on Overload Protection: ....................................................................................... 57
6.2.16 Compressor not Trying to Start: .................................................................................................................... 58
6.3 Evaporator Fan Troubleshooting: ......................................................................................................................... 59
6.3.1 Steps for troubleshooting G-series Evaporator Fan ...................................................................................... 59
6.4 Condenser Fan Troubleshooting ........................................................................................................................... 63
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