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AIR CONDITIONER FAILS TO OPERATE - TM-5-4120-361-14_53
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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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EVAPORATOR OR CONDENSER FAN FAILS TO OPERATE - TM-5-4120-361-14_55
TM 5-4120-361-14 Table 4-2. Troubleshooting - Continued 2. INSUFFICIENT COOLING - Continued Step  3. Step  4. Step  5. Step  6. Step  7. Step  8. Step  9. Step 10. Step 11. Check to see if fresh air damper control is incorrectly set or improperly   adjusted. Verify setting and, if necessary, correct adjustment of damper control  (para  4-39). Check to see if evaporator outlet louver is bent or stuck in closed  position. Repair or replace louver. (para  4-7) Inspect condenser coil for dirt accumulation. Clean coil (para 4-5). Inspect evaporator return air filter for dirt accumul Clean filter (para 4-3). Check to see if evaporator fan is loose or defective. ation Tighten if loose or replace if defective (para 4-21). Check evaporator fan motor for a defective thermal protective device. Replace thermal protector (para 4-22). Check to see if evaporator fan motor is worn or defective. Report deficiency to direct support maintenance or replace motor (para 4-21). Check refrigerant system for insufficient charge by inspecting liquid  sight  indicator. Presence of bubbles indicates a low refrigerant  charge. Report low-charge condition to direct support maintenance. Check for intermittent compressor operation. Report condition to direct support maintenance. 3. EVAPORATOR OR CONDENSER FAN FAILS TO OPERATE Step 1. Check to see if main power cable is connected. Connect cable to power source. Step  2. Check to see if main power receptacle or plug connectors are defective. Replace connectors or receptacle. 4-10

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