York YKCA 18 Installation & Owner's Manual

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York YKCA 18 Installation & Owner's Manual Manual pdf 21 page image

ENGLISH 21YORK INSTALLATION & OWNER’S MANUAL (EN) 035M80090-000TROUBLESHOOTING GUIDEProblem Probable cause RemedyA.The air conditioner does not 1. Power failure. 1. Wait for power resume.run. 2. Fuse blown or circuit breaker 2. Replace the fuse or reset theopen. breaker.3. Voltage is too low. 3. Find the cause and fix it.4. Faulty contactor or relay. 4. Replace the faulty component.5. Electrical connections loose. 5. Retighten the connection.6. Thermostat adjustment too low 6. Check thermostat setting.(in heating mode) or too high(in cooling mode).7. Faulty capacitor. 7. Find the cause then replacecapacitor.8. Incorrect wiring, terminal loose. 8. Check and retighten.9. Pressure switch tripped. 9. Find the cause before reset.B. The outdoor fan runs but the 1. Motor winding cut or grounded. 1. Check the wiring and thecompressor will not start. compressor winding resistance.2. Faulty capacitor. 2. Find the cause then replacecapacitor.C.There is insufficient heating 1. There is a gas leak. 1. Remove charge, repair, evacuateor cooling. and recharge.2. Liquid and gas line insulated 2. Insulate them separately.together.3. The room was probably very 3. Wait while unit has enough time tohot (cool) when you started cool the room.the system.D.The compressor runs 1. Thermostat adjustment too low 1. Check thermostat setting.continuously. (in heating mode) or too high(in cooling mode).2. Faulty fan. 2. Check condenser air circulation.3. Refrigerant charge too low, leak. 3. Find leak, repair and recharge.4. Air or incondensables in 4. Remove charge, evacuate andrefrigerant circuit. recharge.E.The compressor starts but 1. Too much or too little refrigerant. 1. Remove charge, evacuate andshuts down quickly. recharge.2. Faulty compressor. 2. Determine the cause and replacecompressor.3. Air or incondensables in 3. Remove charge, evacuate andrefrigerant circuit. recharge.4. Changeover valve damaged or 4. Replace it.blocked open (heat pump unit).F. Clicking sound is heard from In heating or cooling operation any In heating or cooling operation anythe air conditioner. plastic parts may expand or shrink plastic parts may expand or shrink duedue to a sudden temperature change to a sudden temperature change in thisin this event, a clicking sound may event, a clicking sound may occur.occur.

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