Honeywell Air Conditioner Troubleshooting

Your air conditioner is not cooling, very noisy at work, mist comes from air outlet vent or does not respond to the control panel – do not worry. The tables below could help with Honeywell air conditioner troubleshooting. Depending on the model, the tables provide useful information for repairing.

Honeywell HW Quick12e Air Conditioner Troubleshooting

FaultTrouble Shooting
Air conditioner cannot be restarted immediately after a previous stopAfter pressing the key the unit will restart with a delay of 3-4 minutes to avoid a damage of the compressor.
Odour comes out from the unit when just switched onOdour is caused by the odour within the room (for example cigarettes). Now the unit is in air conditioning mode and blows out the previously absorbed air.
Water flowing sound is heard when the air conditioner is operatingThis is the normal sound of flowing refrigerant inside the air conditioner
While cooling, mist comes from air outlet ventMist comes out of the indoor unit as the indoor unit is cooled rapidly
Creaking noise can be heard when the unit is switched on or offThis is the frictional sound caused by expansion of the front panel, for example because of changing the room temperature.
Air conditioner does not operateIs the power cord plugged off?
Is the power cord loose and not plugged in firmly? Is the fuse blown?
Is the voltage too high or too low?
Is TIMER ON set by wireless remote control?
Bad cooling or heating effectIs the temperature set correctly on the remote control? Are the inlet or outlet vents of outdoor unit blocked?
Is there too much dust on the air filters?
Are windows and doors closed?
Is the airflow set too low?
Is there any heat source in the room?
Remote control does not controlIf batteries of the remote control are changed, it is necessary to press key ACL after removing the cover of the remote control.
The indoor unit is interfered by using remote controls of other appliances or frequently changing of the function. The remote control cannot control. First plug off the power cord and then plug in the power cord of the indoor unit, and the indoor unit can resume normal operating.
Check if the remote control is in the receiving area or not. Check if there is any obstruction.
Check the batteries of the remote control. If necessary change the batteries. When you replace the batteries, only use new AAA dry-cell, 1.5 V batteries. Dispose of the used batteries for recycling according to your local regulations.

Honeywell MN10CES Air Conditioner Troubleshooting

ProblemPossible CauseSolution
The air conditioning unit does not start• No electricity.• Check for power.
• Batteries in the remote control need to be replaced.• Change remote control batteries.
• The power cord is not properly plugged in.• Remove and reconnect the power cord.
• The safety GFI plug has tripped.• Reset the safety GFI plug, if problem persists contact our customer support.
Runs a short while only• The thermostat temperature setting is too close to room temperature.• Lower the set temperature.
• Air outlet is blocked.• Make sure the exhaust hose is properly connected.
• There are tight bends in the air exhaust hose.• Connect exhaust hose
Runs but no cooling• A door or window is open.• Make sure the window or door is closed.
• The air filter is dirty.• Clean the air filter
• The exhaust hose is detached.• Reinstall exhaust hose properly
• Temperature setting is too high.• Reduce temperature setting on control panel.
• Air outlet or intake is blocked.• Remove blockage.
Will not run and water full indicator light is ON• Excess water condensation inside the tank.• Drain the water through the drain plug

Honeywell CL30XC Air Conditioner Troubleshooting

ProblemPossible CauseSolution
Humidity output minimal to noneWater is below minimum water level in water tank.Turn off the unit.
Water pump is damaged.Replace the water pump according to the procedure
Dust filter is dirty or has residue.Clean or replace filter.
Water color yellowish at initial useColor fasts from honeycomb filter.This is natural. After several use, the water color will be clean.
Abnormal noise inside the productNoise of water pump when water not up-to min water level.Turn off the product. Add water, and then turn on the product again.
Motor or blower problem.Turn off and unplug the product or change the main motor
Remote control not workingSignal path is obstructedClear signal path
No battery or low battery in the remote control unit.Check battery
Musty or unpleasant odorStale or stagnant water in water tank.Drain, flush and clean water tank
Media mildewed or clogged.Replace media
Not coolingPump is not turned on.Check the water level and turn on the pump by pressing COOL button on the control panel.
Low or no water.
Damaged water pump.Replace the water pump according to the procedure
The unit does not throw warm airHeating element not workingCheck if the HEAT function is ON. Press HEAT button and check the control panel indicator. If the control panel does not show the LED icon for heat, possibly the PCB or heater element may be damaged.

Honeywell CL15AC Air Conditioner Troubleshooting

PROBLEMPOSSIBLE CAUSESOLUTION
Cooler not operating Initially.Cord is not plugged in.Make sure power cord is plugged in and the supply switch in ON.
Power outlet or supply faulty.Check the power outlet. Check the power supply.
Incorrect Voltage.Check that the power supply is the same as specified on the rating label.
No discharge of airCord is not plugged in.Make sure power cord is plugged in and the supply switch in ON.
Power is not on.Try to turn the unit ON by pressing buttons on control panel or remote control.
Not Cooling / Unit is making noisePump is not turned ON.Turn on COOL function from remote or control panel.
Low or no water in tank, when COOL is selected.Refill water tank.
Damaged Pump or Calcium deposits on blower.Contact service centre.
The unit does not respondRemote control batteries.Check batteries, Replace if needed. Try to operate using the control panel.
Damaged PCBTry with remote control. If the unit responds, PCB board fasteners may be loose. Contact service centre.
If neither remote control nor control panel works, PCB board may be damaged. Contact service centre.
Odour omissionNew Unit.When the unit is used for the first time, the Honeycomb cooling media will have an odour, which will dissipate within a week of initial use.
Old Unit.There may be an algae issue, Replace the honeycomb cooling media.
Contact customer care.

Honeywell CO60PM Air Conditioner Troubleshooting

ProblemPossible CauseSolution
No discharge of airCord is not plugged in.Make sure power cord is plugged in and the supply switch is on.
Power is not on.Turn the unit ON.
Humidity output minimal to noneWater is below minimum water level in tank.Turn off the unit.
Follow instruction to fill the water tank with clean water.
Water pump is damaged.Replace the water pump according to the procedure
Water color yellowish at initial useColor fasts from honeycomb filter.This is natural. After several use, the water color will be clean.
Abnormal noise inside the productNoise of water pump when water not up-to min water level.Turn off the product.
Add water, and then turn on the product again.
Motor or blade problem.Turn off and unplug the product or change the main motor
Musty or unpleasant odorWhen the Cooler is new.When the unit is used for the first time, the Honeycomb Cooling Media will have an odor, which will dissipate within a few hours of initial use.
Stale or stagnant water in water tank.Drain, flush and clean water tank
Media mildewed or clogged.Replace media
Not coolingPump is not turned on.Check the water level and turn on the pump.
Low or no water.
Damaged water pump.Replace the water pump

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