28 DADOS PORTABLE AC TROUBLESHOOTING GUIDE
Contents
1. atlantic SMARTER CLIMATE LIVING DADOS PORTABLE AC TROUBLESHOOTING GUIDE PROBLEM POSSIBLE CAUSE REMEDY Power failure Check the power supplier if the power supplier is supplied to the No power display Ai unit Check the power cord and correct if damaged an panel or anyone Check resistance between the two input output lines on of Gc buttons 7 a a Pischargg transformer Replace the transformer if either of the input output transformer before testing fi f failure is open or the transformer is damaged Remote control failure Fan motor runs intermittently Display board or main PCB failure Check the voltage on display board Replace the display board if it is 5V else replace the main PCB Battery failure Cycles on overload Check the voltage of battery Replace batteries if the voltage is lower than 2 3V Check voltage Call an electrician if not within limits Test capacitor Replace if not within 10 of manufacture s rating Check bearings Replace the motor if the blower wheel cannot rotate freely Pay attention to any change from high speed to low speed Replace the motor if the speed does not change The amount of the refrigerant is too much making the Compressor stops Refrigerant compressor load too big Recycle and recharge the refrigerant instantly after after checking for the reason startup The compressor is blocked inside Replace after checking for Compre2. while fan Check the wire connections if loose repair or replace the motor runs SE terminal If wires are off refer to wiring diagram for Wiring identification and replace Check wire locations If not per wiring diagram correct Main PCB failure Check voltage of main PCB Replace the main PCB if open Capacitor Discharge capacitor before testing Check the capacitor Replace if not within 10 of manufacturers rating Replace if shorted open or damaged 28 Room temp sensor Check the temperature setting if not at the coolest in cooling mode or the warmest in heating mode Set it if not Check the compressor for open circuit or ground If open or a ae grounded replace the compressor 7 Remove the cabinet and carefully rearrange tubing not to Excessive noise Copper tubing contact cabinet compressor shroud and barrier Water tank full Check and pour if the water tank is full Water full alarm Water depth sensor if failure Check and replace if failure Water depth is over load in chassis Check and drainage the water in the chassis by open the drainage hose on the chassis Water depth sensing Check and replace or realign if the structure is failure Cooling or heating feels not good structure Air filter Clean or replace if restricted Aan discharse nine Realign and assemble if the installation of the air discharging pipe fail
3. Check and replace if the compressor the over load protector or wiring is broken Electric heater failure Check and replace if the heater is damaged Over heat fuse failure Check and replace if the fuse is damaged Main PCB Power supply Check the voltage of main PCB Replace the main PCB when the unit failure in heating mode The input power supply voltage is too low Call an electrician if not within limits Main PCB Check and replace the main PCB if the compressor relay on PCB is shorted or damaged Room temperature When the room temperature is too high the compressor will protect 29
4. ssor the reason No power Check voltage at electrical outlet Correct if none Fan motor will not run Water alarm Check and correct if water alarm happens Power supply cord Check voltage at the power cord terminal on Main PCB Replace the power cord if none Transformer Discharge transformer before testing Check resistance between the two input output lines on transformer Replace the transformer if either of the input output is open or the transformer is damaged Wire disconnected or connection loose Connect wire Refer to wiring diagram for terminal identification Repair or replace loose terminal Main PCB failure Select fan speed and Check the voltage on main PCB Replace the main PCB if no voltage in anyone Capacitor Discharge capacitor before testing Test capacitor Replace if not within 10 of manufacture s rating Replace if shorted open or damaged Fan blower hitting scroll Realign assembly Fan motor noise Will not rotate Check fan motor bearings Replace the motor if motor shaft do not rotate Replace the fan blower if cracked out of balance or partially Fan blower missing Loose screws Tighten them Replace the motor if knocking sounds continue when running or Worn bearings loose or the motor hums or noise appears to be internal while running Compressor will Voltage Check voltage Call Supply Authority if not within limits not run
5. ure Replace if damaged i 7 Determine if the unit is properly sized for the area to be cooled Unit undersized or heated Condenser and Evaporator Clean or replace if restricted Circulation in condensing xvatar Check wether water motor damaged or water hose is block or not Fan motor Check the fan capacitor and replace if not within 10 of manufactures rating Air flow Clean or remove if any barrier is found to block the inlet outlet wind flow of the unit Less refrigerant Check the tubes for reasons of leakage Recycle the refrigerant correct the leakage points and recharge Regulate the flow if capillary tube and make the evaporating Capillary tube temperature appropriate if the evaporator is frosted Replace if blocked Repair joint if leaking The inlet and outlet valve of the compressor is damaged c making the low pressure connected with the high pressure The ompressor refrigerating system can not produce high pressure and low pressure Replace the compressor after checking for the reason Heat sources Reduce if too many No cooling or heating The unit starts and stops frequently No power Check the voltage Call an electrician if no within the limit Wiring Check the terminals Repair and correct if loose Temperature setting Check and adjust the temperature setting Mode setting Check and adjust the mode setting Compressor
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