WPC-9000 3 Ton Portable Air Conditioner
Product Information
Product Name: Model WPC-9000
Product Type: Air Conditioner
Product Usage Instructions
Self-Diagnostic Alarm Codes
| Alarm Display | Problem Cause | Corrective Action |
|---|---|---|
| Frost prevention sensor and Abnormal temperature sensor value | Indoor heat exchanger temperature too low | Ensure ambient temperature is not lower than the specified limit. Clean air filter and ensure exhaust duct is not blocked or kinked. |
| Refrigerant high pressure switch | Blocked air filter, blocked/kinked exhaust duct, or ambient temperature too high | Clean air filter and ensure exhaust duct is not blocked or kinked. Do not use the air conditioner if ambient temperature is higher than the specified limit. |
| Abnormal temperature sensor value TH1(Outlet) temperature sensor has a loose or broken connection | Contact a qualified service agent | Contact a qualified service agent for repair. |
| Abnormal temperature sensor value TH2(Inlet) temperature sensor has a loose or broken connection | Contact a qualified service agent | Contact a qualified service agent for repair. |
| Compressor overloaded Ambient temperature is too high Unstable voltage supply Defective compressor | Do not use the air conditioner if ambient temperature is higher than the specified limit. Replace compressor if necessary. | Do not use the air conditioner if ambient temperature is higher than the specified limit. Replace compressor if necessary. |
| Condensate water level alarm Drain pump alarm | Condensate tank is full Drain pump defective or improper hose connection (including kink or blockage) | Empty the water tank. After installation of the water tank, press the SPOT/COOL or ROOM/COOL button to resume operation. Check the hose connection and hose. Replace drain pump if necessary. |
Troubleshooting Chart
| Symptom | Possible Cause(s) | Corrective Action |
|---|---|---|
| Water leakage | High water level in condensate tank | 1. Remove blockage from drain hose. 2. Remove any object stuck underneath the black panel under the water tank. |
| The unit doesn’t work | 1. Power supply issue. 2. Power cord not connected. | 1. Reset the circuit breaker and restart the unit. 2. Connect the power cord. |
| No cold air flows from the cold air outlet | 1. Dirty filter. 2. Unit turned off and on quickly. | 1. Clean the filter if dirty and not regularly cleaned. 2. Wait 2 minutes after turning off the unit before turning it back on. |
| Water flow can be heard after compressor shuts off | No specific cause | It is common to hear coolant flowing after the unit shuts off. |
| Alarm displays FT with less than half of condensate water in the tank | Spring is possibly broken | Replace the spring. Refer to the Maintenance page (Page 8) for instructions. |
Owner’s manual
Model WPC-9000
SELF-DIAGNOSTIC ALARM CODES
Alarm Display Problem
Cause
Corrective Action
Frost prevention sensor and Abnormal temperature sensor value
Indoor heat exchanger
temperature too low
TH3 temperature sensor
has a loose or broken connection
Do not use the air conditioner if ambient temperature is lower than
18°C (64°F) Contact a qualified service agent
Refrigerant high pressure switch
Blocked air filter Blocked / kinked exhaust duct Ambient temperature is too high
Clean air filter Ensure exhaust duct is not
blocked / kinked
Do not use the air conditioner if ambient temperature is higher than
45°C (113°F)
Abnormal temperature sensor value
TH1(Outlet) temperature
sensor has a loose or broken connection
Contact a qualified service agent
Abnormal temperature sensor value
TH2(Inlet) temperature
sensor has a loose or broken connection
Contact a qualified service agent
Compressor overloaded
Ambient temperature is
too high
Unstable voltage supply Defective compressor
Do not use the air conditioner if ambient temperature is higher than
45°C (113°F) Contact a qualified service agent
Replace compressor
Condensate water level
alarm
Drain pump alarm
Condensate tank is full
Drain pump defective or improper hose connection (including kink or blockage)
Empty the water tank
After installation of the water tank, press the SPOT/ COOL or ROOM/COOL button to resume operation
Check the hose connection and hose Replace drain pump
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Owner’s manual
Model WPC-9000
Troubleshooting chart
Symptom Water leakage
The unit doesn’t work
Possible Cause(s)
Corrective Action
High water level in condensate tank
1. Remove blockage from drain hose
2. Remove any object stuck undeerneath of the black panel nuder the water tank
1. Check the power supply to verify that 1. Reset the circuit breaker and restart
power is available to the unit
the unit
2. Verify that the power cord is connected 2. Connect power cord
No cold air flows from the cold air outlet
1. Ambient air cannot be properly cooled 1. Clean the filter if the filter is dirty and not regularly cleaned
2. Compressor will not work if the unit is 2. Wait 2 minutes after unit is turned
turned off and on quickly.
off before turning the unit back on.
3. The ambient air temperature may be too high
3. The temperature of the compressor can be higher when the ambient temperature is too high. The compressor will not work unless the ambient air temperature is within the acceptable operating range of the unit
Water flow can be heard No cause after compressor shuts off
Common to hear coolant flowing after unit shuts off
Alarm displays “FT”with
Spring is possibly broken
less than half of condensate
water in the tank
Spring is possibly broken
Replace a new spring (See Maintenance page 8)
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