Teco Inverter AC Error Codes and Troubleshooting
Teco AC Error Codes
Teco Inverter AC Error Codes and Troubleshooting
The faults that GA7200 detected are classified into faults and alarms.
If a problem occurs, the fault contact is output and the motor stops. When an alarm is issued, the digital operator signs the alarm for warning.
Teco AC error code and troubleshooting
Error code faults description
Uu1 Undervoltage (CUV). Two seconds are counted after the low voltage is detected.
Uu2 Undervoltage (CUV). The control circuit becomes low voltage during operation.
Uu3 undervoltage (MC-AND fault). The main circuit magnetic contactor does not operate correctly.
Of grounding. Grounding Current – Approx. % 50 rated inverter current.
oC Overcurrent. Invoice. Current>% 200 of Invit. Rated current.
ou Where Overvoltage. Increase decele time and / or add breaking resistor.
Fu blew the fuse. Check for short-circuits at load, ground fault, etc.
OH radiation fin overheated. Check fan or ambient temperature.
oL1 surcharge. Protect the motor.
oL2 surcharge. Protect the inverter.
oL3 Overtorque. When the invitation is selected. Output OFF inv.output current. overtorque level and overtorque detection.
RG regenerative transistor fault. Replace the transistor.
RH braking resistor warmer. Protect the resistor applying the brake to the inverter unit.
EF3 Control Circuit Terminal.
EF5 Control Circuit Terminal.
EF6 Control Circuit Terminal.
EF7 Control Circuit Terminal.
EF8 Control Circuit Terminal.
bU5 communication inverter card SC-C communication.
CPF00 operator communication error.
CPF01 Operator communication error.
CPF02 Control Circuit Fault.
CPF03 NV-PAM (S-RAM) fault.
CPF04 NV-RAM (BCC, Access Code) fault.
CPF05A / D converter fault in CPU.
CPF06 Optional Connection Fault.
Teco AC Inverter Fault Codes
Problem: The unit does not turn on when the ON / OFF button is pressed
Possible reasons:The unit has a 3-minute safety feature that protects the unit from overloading. The unit cannot be restarted within three minutes of shutdown.
Problem: The unit changes from COOL / HEAT mode to FAN mode
The unit can change its setting to prevent frost from forming on the unit. After the temperature rises, the unit will start working again in the previously selected mode.
The set temperature is reached, at which point the unit turns off the compressor. The unit will continue to operate when the temperature fluctuates again.
Problem:indoor unit emits white mist
Possible reasons: In moist areas, a large temperature difference between room air and air conditioned air can cause white haze.
Problem: Both indoor and outdoor units emit white mist
Possible reasons: When the unit resumes in HEAT mode after defrosting, white mist may be emitted due to the moisture generated from the defrosting process.
Problem: indoor unit makes noise
1. Re A strong wind sound can occur when the louvre resets its location.
2. Due to expansion and contraction of the plastic parts of the unit, a screaming sound can occur after running the unit in HEAT mode
Problem: Both indoor unit and outdoor unit make noise
1. Low Hissing Sound During Operation: This is common and is caused by refrigerant gas flowing through both indoor and outdoor units.
2. Low hissing sound when the system starts, simply stops running, or defrosting: This noise is common and is caused by the refrigerant gas stopping or changing direction.
3. Screaming: Screaming noise can occur due to normal expansion and contraction of plastic and metal parts due to temperature changes during operation.
Problem: outdoor unit makes noise
Possible reasons: The unit will make different sounds depending on its current operating mode.
Problem: Dust is emitted from indoor or outdoor unit
Possible reasons: Dust may accumulate during extended periods of not using the unit, which will be emitted when the unit is operating. This can be reduced by covering the unit during long periods of inactivity.
Problem: The unit emits a bad smell
Such units can absorb odors (such as furniture, cooking, cigarettes, etc.) from the environment that will be emitted during operation.
The unit’s filters have molded and must be cleaned.
Cleaning your air filter
Teco AC Cleaning Your Air Filter
A clogged air conditioner can reduce the cooling capacity of your unit, and can also be bad for your health. Be sure to clean the filter once every two weeks.
1. The air filter is under the top air inlet grill.
2. Hold the tab at the end of the filter, lift it up, then drag it towards you.
3. If your filter has a small air freshening filter, separate it from the larger filter. Clean this air freshening filter with a hand-held vacuum.
4 Clean the large air filter with warm, soapy water. Be sure to use a mild detergent.
5. Rinse the filter with fresh water, then shake off excess water.
6. Dry it in a cool, dry place, and avoid spreading it under direct sunlight.
7. When dry, re-clip the air freshening filter onto the larger filter, then slide it back into the indoor unit.
Air filter cleaning reminder
After 240 hours of use, the display window on the indoor unit will flash “CL” This is a reminder to clean your filter. After 15 seconds, the unit will return to its previous performance. To reset the reminder, press the LED button on your remote control 4 times, or the control button 3 times. If you do not reset the reminder, the “CL” indicator will flash again upon restarting the unit.
Air filter replacement reminder
After 2,880 hours of use, the display window on the indoor unit will flash “nF” This is a reminder to change your filter. After 15 seconds, the unit will return to its previous performance. To reset the reminder, press the LED button on your remote control 4 times, or the control button 3 times. If you do not reset the reminder, the “nF” indicator will flash again upon restarting the unit.
IFB Inverter AC Error Codes and Troubleshooting