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Ac Cleaning

Ac cleaning Dubai

Cleaning the air conditioner indoor unit:

  • Filter Wash
  • Evaporator treatment (internal heat exchanger)
  • Cleaning the fan impeller
  • Ac Drainage cleaning
      • drain pan
      • drain hose
      • drainage pump

Cleaning the external unit of the Air Conditioning system:

  • dry clean
  • high pressure water wash (karcher)
  • car wash

The cost affects:

  • Number of air conditioners (discount from 2 air conditioners)
  • Availability of air conditioning
  • (dismantling the ceiling, the release of the passage to the air conditioner)
  • Climber or aerial platform services
  • Night work

Ac Filter Wash

Dust coarse filters (grids, as many call them) are washed under running cool running water, drying is not required, moisture does not interfere with the operation of the air conditioner. The need for washing the filters can be determined by the presence of a layer of dust on them.

Ac Evaporator treatment

The evaporator is a coil of copper tubes with fins of thin aluminum plates – as in a car radiator, only the plates are thinner and more often located.

Evaporator processing types:

  • mechanical
  • chemical
  • antibacterial
  • high pressure washing

For mechanical Ac cleaning a special brush is used, which does not crush the ribs. It is used for heavy pollution.

Chemical treatment removes inorganic and organic contaminants from the evaporator – fats, soot layer, tobacco smoke particles, fine dust that accumulates passing through dust filters.

Sometimes, due to a layer of such dust, the air is completely not cooled when passing through the indoor unit. 

In case of contamination that cannot be removed by chemical means, the indoor unit is washed with a high-pressure washer – with a Karcher, with its dismantling and subsequent installation.

Antibacterial treatment of Ac will prevent the formation of fungi, mold and destroy the existing accumulations of bacteria in the air conditioner. Also, this measure will eliminate odors from the air conditioner.

For this purpose, special means are used, which are produced in aerosol cans, ready for use, or in the form of concentrates, which must first be diluted with water.

“Master of Cold” uses such tools for processing evaporators:

  • Easyclean
  • Easycare
  • Domestic means “Nanopirit”
  • Tophouse
  • Hydrocoil

All these tools have been tested and approved by manufacturers of air conditioners and condensate pumps.

Cleaning the fan impeller

With a small amount of contamination in Ac System, it can be cleaned with a brush, followed by chemical treatment.

If the contamination of the impeller is large, then it will have to be removed and washed.

Drainage cleaning

Gravity drain system

With this type of drainage, pollution often accumulates at bends or tapered areas. Effectively cleaned can be mechanically – purging with compressed gas. after that, it is necessary to spill the drain hose with water, preferably with the addition of chemical agents, as this will prevent the formation of mold and mildew, which also cause clogging of the drain hole and the hose.

Pump drainage system

Cleaning of this type of drainage system differs only in that it additionally has a float signal bath. It is necessary to monitor its purity most closely and regularly, since in the presence of dirt false alarms occur in it, which leads to the operation of the pump “dry” – this is the most common cause of the drain pump failure. The cost of replacing the pump is quite high, so we recommend regular cleaning of pump systems.

Ac indoor unit Cleaning

Dust filters (coarse filters) 

Dust filters are cleaned with cold running water, this procedure is available to any air conditioner user.

The frequency of washing the filters – in fact, on the frequency of use and the degree of air pollution. Learn what you need to clean the filter by opening the air conditioner panel – if the filters has accumulated a layer of dust, they should be washed under running water, if the contamination is not removed, it is recommended to use neutral cleaners.

Ac outdoor unit Cleaning

How necessary is this procedure?

Many people think that after the removal of dry brush “carpet” of poplar fluff and dust outdoor unit is completely pure and it is possible to finish the cleaning.

In fact, as it does not sound paradoxical, this “carpet” often does not interfere with the normal condensation of freon, only slightly delaying the passage of air through the edges of the condenser.

Particularly worsen the heat exchange particles of exhaust gases, grease and dust deposited on the inner surface of the ribs. Experts are well aware that when washing with high pressure water a clean-looking condenser, which even “shines through”, very dirty water flows out of it and, moreover, for a long time.

If your air conditioner is in the area of ​​exhaust emissions, increased dust formation and other air pollutants, it should be regularly washed with a high-pressure washer.

How to wash the Air conditioner in Dubai?

A condenser is needed for washing – a heat exchanger consisting of copper tubes with aluminum fins.

In order not to bend the edges of the water stream is required to direct strictly parallel to the ribs. To do this, direct the stream to the rear (or front) of the condenser and wash the entire surface evenly.

If the location allows, then this can be done with a simple straight nozzle, available in any wash set. But in most cases, this requires a corner nozzle, allowing to penetrate into the space between the wall and the outdoor unit.

Disassembling the case or washing the air conditioners on the fan side is not correct, it does not make sense. 

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Why is the Air Conditioner noisy?

Is your Air Conditioner noisy?

Noisy Ac Maintenance Company Dubai

Noise from the indoor unit

Usually, the noise from the air conditioner appears several years after using the Ac without service, or even during its operation.

But there are also possible extraneous sounds immediately after the installation of the split system.

It is very important to correctly identify the source of the noise, after that, knowing the cause, it will be much easier to eliminate unpleasant sounds.

Causes of Ac noise:

Fan noise

    • fan bearing

      • during operation, a roar is heard, the fan stops immediately after shutdown, scrolls with a small

    • grazing

      • Usually in old air conditioners due to warping and deformation of plastics

    • grazing ice

      • details of the reasons for the formation and elimination of ice are described in the article

Buzz off

  • buzz is not loud, but prevents to fall asleep

  • common in cheap Chinese air conditioners

  • problem is solved by replacing the power transformer

Hiss on power

  • the cause is the flow of refrigerant in the air conditioner tubes

  • manifests when the tubes break and the section narrows

  • also observed when clogged internal cavities tubes

  • after installation of used air conditioners

Air Conditioner vibration

  • sometimes the air conditioner can vibrate very much, almost flying off the mounts on the wall

  • the reason is the imbalance of the fan impeller

  • can fly off a balancing weight (like on car disks)

  • more often the cause is severe contamination of the impeller – unbalancing occurs either because of the irregularity of the pollution along the length or after a piece of dirt flies off from a small area

Noise drainage pump

  • drainage pump starts to crack when it fails, in this case you need to clean or replace the pump

  • crackling will also occur when the air conditioner is idle for a long time, as the pump produces a crackling sound when it is dry, it will stop after a short cod

Noise from the Ac outdoor unit

Since the external units of air conditioners are installed in close proximity to the internal one, most often outside the window, therefore, the noise from the external unit sometimes gets in the way, especially at night, not only to the owner of the air conditioner, but also to his neighbors.

Causes of noise from the external unit

No vibration damping rubber gaskets

  • vibration dampers located between the brackets and legs of the air conditioner
  • they reduce the transmission of vibrations from the air conditioner to the wall

The mounting bracket bolts are in contact with the metal reinforcement of the reinforced concrete wall

  • at the same time there is a feeling that the wall is vibrating

  • it is possible to eliminate only by drilling holes in another place (near) and moving the fixings

Compressor wear

  • after many years of operation and lack of maintenance, the compressor will have extraneous noises and vibrations

Fan noise

  • grazing and foreign objects are often caught

  • ice grazing in heating mode

  • overtones from design elements

  • cheap air conditioners often vibrate lattice elements, covers

  • usually solved by removing them or by laying seals

  • do not be afraid to remove non-functional elements, they serve only for appearance and they are often saved

We have analyzed the main causes and ways of dealing with noisy air conditioners, but it is worth remembering that after many years of work, the equipment will not work as new, especially if the main body material is plastic.

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Bryant Air Conditioners Error Codes

Bryant Air Conditioners Error Codes

Bryant Ac Maintenance Dubai

Table 19 shows the status codes flashed by the amber status light.Most system problems can be diagnosed by reading the status code as flashed by the amber status light on the control board.

The codes are flashed by a series of short and long flashes of the status light. The short flashes indicate the first digit in the status code, followed by long flashes indicating the second digit of the error code.

Bryant Air Conditioners Error Codes

A NOTE ABOUT SAFETY Any time you see this symbol in manuals, instructions and on the unit, be aware of the potential for personal injury. There are three levels of precaution: DANGER identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies hazards that could result in personal injury or death. CAUTION is used to identify unsafe practices which would result in minor personal injury or product and property damage. NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation.

PERSONAL INJURY, DEATH AND / OR PROPERTY DAMAGE HAZARD Failure to follow this warning could result in personal injury, death or property damage. Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock, or other conditions which may cause personal injury or property damage. Consult a qualified installer, service agency, or your distributor or branch for information or assistance. The qualified installer or service agency must use factory–authorized kits or accessories when modifying this product. Read and follow all instructions and warnings, including labels shipped with or attached to unit before operating your new air conditioner.

ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death. Disconnect all electrical power to the indoor air handler or furnace before removing access panels to perform any maintenance. Disconnect power to both the indoor and outdoor units.

Bryant Air Conditioners Heat Pumps Troubleshooting Dubai

Fault: System Communications Failure

Possible Cause And Action: Communication with User Interface lost. Check wiring to User Interface, indoor and outdoor units

Fault: Invalid Model Plug

Possible Cause And Action: Control does not detect a model plug or detects an invalid model plug. Unit will not operate without correct model plug

Fault: High Pressure Switch Open

Possible Cause And Action: High —pressure switch trip. Check refrigerant charge, outdoor fan operation and coils for airflow restrictions

Fault: Low Pressure Switch or Discharge Temp Switch Open

Possible Cause And Action: Low -pressure switch or discharge temperature switch trip. Check refrigerant charge and indoor air flow.

Fault: Control Fault

Possible Cause And Action: Outdoor unit control board has failed. Control board needs to be replaced.

Fault: Outdoor Air Temp Sensor Fault

Possible Cause And Action: Outdoor air sensor not reading or out of range. Ohm out sensor and check wiring

Fault: Outdoor Coil Sensor Fault

Possible Cause And Action: Coil sensor not reading or out of range. Ohm out sensor and check wiring

Fault: Thermistors out of range

Possible Cause And Action: Improper relationship between coil sensor and outdoor air sensor. Ohm out sensors and check wiring

Fault: Low Stage Thermal Cutout

Possible Cause And Action: Compressor operation detected then disappears while low stage demand exists. Possible causes are internal compressor overload trip or start relay and capacitor held in circuit too long

Fault: High Stage Thermal Cutout

Possible Cause And Action: Compressor operation detected then disappears while high stage demand exists. Possible causes are internal compressor overload trip or start relay and capacitor held in circuit too long

Fault: Low Stage Thermal Lockout

Possible Cause And Action: Thermal cutout occurs in three consecutive low/high stage cycles. Low stage locked out for 4 hours or until 24v power recycled.

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Beko AC Error Codes and Troubleshooting

Beko Ac Error Codes and Trouble Shooting

Beko Ac Maintenance Dubai

When air conditioner status is abnormal, temperature indicator on indoor unit will blink to display corresponding error code. Please refer to blow list for identification of error.

Error Codes Cause
H1 Means defrosting status. It’s the normal phenomenon.
E5 It can be eliminated after restarting the unit. If not, please contact qualified professionals for service.
U8 It can be eliminated after restarting the unit. If not, please contact qualified professionals for service.
H6 It can be eliminated after restarting the unit. If not, please contact qualified professionals for service.
C5 Please contact qualified professionals for service.
F1 Please contact qualified professionals for service.
F2 Please contact qualified professionals for service.

Note: If there’re other error codes, please contact qualified professionals for service.

Warning

When below phenomenon occurs, please turn off air conditioner and disconnect power immediately, and then contact the dealer or qualified professionals for service.

  • Power cord is overheating or damaged.
  • There’s abnormal sound during operation.
  • Circuit break trips off frequently.
  • Air conditioner gives off burning smeel.
  • Indoor unite is leaking.

*Do not repair or refit the air conditioner by yourself.
*If the air conditioner operates under abnormal conditions, it may cause malfunction, electric shock or fire hazard.

Beko AC Troubleshooting

Check the following points before requesting repairs or service. If the fault persists, please contact your dealer or service center.

*The air conditioner does no operate.
-Have you made a mistake in timer operation?
-Has the fuse blown or has the circuit breaker been tripped?

*The room has a peculiar odor.
-Check that this is not a damp smell exuded by the walls, carpet, furniture, or cloth items in the room.

*It seems that condensation is leaking from the air conditioner.
-Condensation occurs when the airflow from the air conditioner cools the warm room air.

*Air conditioner does not operate for about 3 minutes when restarted.
-This is the protector of the mechanism.
-Wait about three minutes and operation will begin.

*Does not cool or heat effectively.
– Is the air filter dirty? See air filter cleaning instructions.
– Has the temperature been set incorrectly?
– Are the indoor unit’s air inlet or outlet vents obstructed?

*The air conditioner operation is noisy.
-For a noise that sounds like water flowing. This is the sound of freon flowing inside the air conditioner unit.
-For a noise that sounds like the compressed air releasing into atmosphere. This is the sound of the dehumidifying water being processed inside the air conditioning unit.

*Remote control display is faint, or no display at all.
-Are the batteries depleted?
-Are the batteries inserted in the opposite (+) and (-) directions?

*Crack sound is heard.
This sound is generated by the expansion/constriction of the front panel, etc. due to changes of temperature.

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Aux AC Error Codes and Troubleshooting

Aux Ac Error Codes and Trouble Shooting

Aux Ac Maintenance Dubai

AUX Air Conditioning Error Codes;

1.HS(Y) HSA(Y) HSB(Y) HSF (Y) HV(Y) HVA(Y) digital display for the series air-conditioner faults:

Error Codes Problem
E4 PG motor feedback is abnormal. The display precedence level: 1
E1 Plastic temp sensor is abnormal. The display precedence level: 2
E3 Copper temp sensor is abnormal (indoor). The display precedence level: 3
E2 Copper temp sensor is abnormal (outdoor). The display precedence level: 4

2. H (Except KFR-25G/H) H1 HA HB series faults display:

  • Fault source: PG motor feedback is abnormal
  • Display mode: Timing light twinkles 4 times in every 8 seconds
  • The display precedence level: 1
  • Fault source: Plastic temp sensor is abnormal
  • Display mode: Timing light twinkles 1 times in every 8 seconds
  • The display precedence level: 2
  • Fault source: Copper temp sensor is abnormal (indoor)
  • Display mode: Timing light twinkles 2 times in every 8 seconds
  • The display precedence level: 3
  • Fault source: Copper temp sensor is abnormal (indoor)
  • Display mode: Timing light twinkles 1 times in every 1 seconds
  • The display precedence level: 4

3. H(Y) Model air conditioner fault display:

  • Fault source: PG motor feedback is abnormal
  • Display mode: Timing light twinkles 4 times in every 8 seconds
  • The display precedence level: 1
  • Fault source: Plastic temp sensor is abnormal
  • Display mode: Timing light twinkles 1 times in every 8 seconds
  • The display precedence level: 2
  • Fault source: Copper temp sensor is abnormal (indoor)
  • Display mode: Timing light twinkles 2 times in every 8 seconds
  • The display precedence level: 3
  • Fault source: Copper temp sensor is abnormal (outdoor)
  • Display mode: Timing light twinkles 1 times in every 1 seconds
  • The display precedence level: 4

4. EA EC EM EY EZ EAA EAD EL HS1 HSZ HL1 HLZ P P1 ZZ CZ digital display series ac faults:

  • Fault source: PG motor feedback is abnormal
  • Display mode: E4
  • The display precedence level: 1
  • Fault source: Plastic temp sensor is abnormal
  • Display mode: E1
  • The display precedence level: 2
  • Fault source: Copper temp sensor is abnormal (indoor)
  • Display mode: E3
  • The display precedence level: 3

5. All of the other E series except EA EC EM EY EZ EAA EAD:

  • Fault source: PG motor feedback is abnormal
  • Display mode: Timing light twinkles 4 times in every 8 seconds
  • The display precedence level: 1
  • Fault source: Plastic temp sensor is abnormal
  • Display mode: Timing light twinkles 1 times in every 8 seconds
  • The display precedence level: 2
  • Fault source: Copper temp sensor is abnormal (indoor)
  • Display mode: Timing light twinkles 2 times in every 8 seconds
  • The display precedence level: 3

6. QA QB QD digital display series ac faults:

  • Fault source: PG motor feedback is abnormal
  • Display mode: E4
  • The display precedence level: 1
  • Fault source: Plastic temp sensor is abnormal
  • Display mode: E1
  • The display precedence level: 2
  • Fault source: Copper temp sensor is abnormal
  • Display mode: E3
  • The display precedence level: 3
  • Fault source: Over-current oprotection
  • Display mode: E6
  • The display precedence level: 4

7. QC QQ light display series air-conditioner faults:

  • Fault source: PG motor feedback is abnormal
  • Display mode: Timing light twinkles 4 times in every 8 seconds
  • The display precedence level: 1
  • Fault source: Plastic temp sensor is abnormal
  • Display mode: Timing light twinkles 1 times in every 8 seconds
  • The display precedence level: 2
  • Fault source: Copper temp sensor is abnormal
  • Display mode: Timing light twinkles 3 times in every 8 seconds
  • The display precedence level: 3
  • Fault source: Over-current oprotection
  • Display mode: Timing light twinkles 6 times in every 8 seconds
  • The display precedence level: 4

8. Faults display of 18000BTU~24000BTU wall unit series ac non-digital tube displays:

  • Fault source: PG motor feedback is abnormal
  • Display mode: Timing light twinkles 1 times in every 8 seconds
  • The display precedence level: 2
  • appearance: System turns off
  • Fault source: Plastic temp sensor is abnormal
  • Display mode: Timing light twinkles 2 times in every 8 seconds
  • The display precedence level: 3
  • appearance: System turns off
  • Fault source: Copper temp sensor is abnormal
  • Display mode: Timing light twinkles 8 times in every 8 seconds
  • The display precedence level: 4
  • appearance: System doesn’t turns off

Digital tube displays:

  • Fault source: PG motor feedback is abnormal
  • Display mode: E1
  • The display precedence level: 2
  • appearance: System turns off
  • Fault source: Plastic temp sensor is abnormal
  • Display mode: E3
  • The display precedence level: 3
  • appearance: System turns off
  • Fault source: Copper temp sensor is abnormal
  • Display mode: E2
  • The display precedence level: 4
  • appearance: System doesn’t turn off
  • E1: Temperature sensor of air intake fault
  • E2: Temperature sensor of outdoor coil fault
  • E3: Temperature sensor of indoor coil fault
  • E4: PG motor of indoor unit feedback fault

AUX Air Conditioning Wall Mounted Error Codes

Self-check information: Hint to defrosting

  • Self-check code of luminotron: Flicker 1 time/1s
  • Digital self-check code: Indicates “dF“or defrosting indicator displays

Self-check information: Hint to defense against cold wind

  • Self-check code of luminotron: Flicker 1 time/3s
  • Digital self-check code: Fan motor picture not running

Self-check information: Failure of room temperature sensor

  • Self-check code of luminotron: Flicker 2 times/4s (Flicker 2 times/8s)
  • Digital self-check code: E2/(L2)

Self-check information: Failure of coiled pipe sensor

  • Self-check code of luminotron: Flicker 3 times/5s (Flicker 1 time/8s)
  • Digital self-check code: E3/(L1)

Self-check information: Abnormality of outdoor unit

  • Self-check code of luminotron: Flicker 4 times/6s (luminating)
  • Digital self-check code: E4/(E5)

Self-check information: Without feedback of internal fan motor

  • Self-check code of luminotron: Flicker 5 times/7s (Flicker 6 times/8s)
  • Digital self-check code: E5/(L6)

Self-check information: Zero crossing signal without current

  • Self-check code of luminotron: Flicker 6 times/8s
  • Digital self-check code: E6

Self-check information: External feedback failure

  • Self-check code of luminotron: Flicker 7 times/9s
  • Digital self-check code: E7

Self-check information: Overheat protection

  • Self-check code of luminotron: Flicker 8 times/10s
  • Digital self-check code: E8

Self-check information: Water pump failure

  • Self-check code of luminotron: Flicker 9 times/11s
  • Digital self-check code: E9

Troubleshooting Guide

Problem: The motor is heard operating but the air-conditioner dose not work when the indoor unit is powered on

Cause: Since the air-conditioner is powered on, it will come to working condition as long as you press the ON/OFF button of the remote control and the signal is well received.

Problem: The compressor stops running but the indoor fan motor keeps working when it is at cooling mode with the indoor temperature higher than set temperature.

Cause: If you turn off the air-conditioner and restart it immediately, it will return to normal in 3 minutes, after that, the air-conditioner will automatically adjust the indoor fan speed to what you set.

Problem: The compressor works discontinuously at dehumidifying mode.

Cause: The air-conditioner will automatically control the working of the compressor according to the inside temperature

Problem: The air-conditioner dose not work while the LED display is on.

Cause: The TIMER is set with the air-conditioner,it will be in hold on condition. If the TIMER setting is cancelled, the air-conditioner will return to normal working condition.

Problem: The compressor works discontinuously at cooling and dehumidifying mode, and the indoor fan motor slows down.

Cause: The compressor stops internally or the fan motor slows down to prevent the indoor heat exchanger from being frozen.

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