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COMPRESSOR WILL NOT START - TM-5-4120-361-14_83
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TM-5-4120-361-14 Air Conditioner Vertical Compact 18 000 BTU/HR 208 Volts 3 Phase 50/60 Hz (Model 18K 208 3 60) Manual
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LOW SUCTION AND DISCHARGE PRESSURE - TM-5-4120-361-14_85
TM 5-4120-361-14 Table  5-1. Troubleshooting - Continued MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 4. INSUFFICIENT COOLING - Continued Step 2. Step 3. Step 4. Step 5. Step 6. Step 7. 5. LOW SUCTION Step 1. Step 2. Step 3. Check for indications of a clogged dehydrator. Replace clogged dehydrator (para 5-24). Check for indications of a defective pressure regulator valve. Replace defective valve (para 5-30). Check for indications of air in system. Purge and charge system (fig. 6-1 and 6-2). Check for indications of a defective thermal expansion valve. Replace defective valve (para 5-28). Check for indications of defective solenoid valve. Replace defective solenoid valve (para 5-25). Check for indications of defective quench valve. Replace defective valve (para 5-29). PRESSURE (See Table 6-1) Check for indications of a Replace clogged dehydrator Check for indications of a clogged   dehydrator. (para 5-24). defective thermal expansion valve. Replace defective valve (para 5-28). Check for indications of a defective quench valve. Replace defective valve (para 5-29). 6. LOW DISCHARGE PRESSURE (See Table 6-1) Step 1. Step 2. 7. LOW SUCTION Step 1. Check to see if compressor is not pumping due to defect. Check to see if HIGH/LOW condenser fan thermostatic switch is defective. Replace defective switch (para 4-26). AND DISCHARGE PRESSURE (See Table 6-1) Check for low refrigerant charge by inspecting sight glass for bubbles or milky appearances. Also check system for leaks. Repair leaks and add refrigerant as necessary. 5-4

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