Trane TTKE12SB5EAA, Owner'S Manual & Installation Manual

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48 MCXE-IOM
Troubleshooting
F. 1.
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6.
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8.
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G. 1.
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2b.
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H. 1.
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I. 1.
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J. 1.
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K. 1.
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L.
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2.
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M. 1.
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3.
4.
Compressor working
all time.
Starter capacitor broken.
Run capacitor broken.
Relay broken.
High temperature.
Suction piping has ice
or sweat.
Liquid piping has sweat.
Unit has noise The leg of unit is not tight. Check and tighten.
Check and stabilize piping.
Replace fan blade or blower.
Replace motor.
Noise from vibrating pipe.
Unbalance fan.
Ball bearing or bush motor loose.
Partial liquid valve are closed. Open all valve.
Replace dryer or stainer. Dryer has moisture or stainer clogged.
Overcharge refrigerant.
Indoor fan motor not operate.
Expansion valve size too big.
Recharge refrigerant.
Check and fix/replace fan motor.
Clean or replace expansion valve.
Adjust or replace small expansion valve .
Relay not match. Check and replace.
Check and adjust relay position.
Tighten the relay.
Incorrect installation relay.
Supply voltage it too high/low.
Run capacitor not match.
Run capacitor not match.
Evaporator coil size too small
Increase air flow Wind not enough to ventilate.
Expansion valve too small
Temperature set up is too high. Set down the temperature at control.
Replace the bigger expansion valve.
Replace the bigger coil size.
Replace run capacitor.
Replace run capacitor.
Over voltage (100% of maximum).
Relay abnormal operate.
At start of compressor, cause of
Low voltage.
Relay hard to start.
Excessive load
Clean or replace relay.
Low refrigerant. Check leak and recharge refrigerant.
Clean or replace controller.
Use bigger piping.
Defrost.
Check leak and fix.
Clean.
Clean or replace filter.
Replace new air-conditioning to fits
the room space or fix insulation.
Controller is dirty.
Interconnection piping is too small.
Evaporator coil have ice.
Pressure system is jam.
Condensor is dirty.
Filter is dirty.
The room is too large or poor
insulation.
Check main power supply.
Check main power supply.
Check main power supply.
Replace relay.
System too much start-stop.
System too much start-stop.
The leg of relay is not tight.
Unit operate will vibrate, cause the
relay to break.
Capacitor not match. Replace capacitor.
See detail at E.
See detail at E.
Use pumpdown method to help start.
Expansion valve clogged.
Symptom Cause Action recommended