Before Installation
1. How to choose an air-conditioning system for the house?
To choose an air-conditioning system for the house, you will need to:
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Considering the areas that you require air-conditioning.
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Analysis the cooling cover capacity
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Confirm the brands and types of air conditioner that you desire.
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The budget.
Installation
1. How long is the air conditioner installation?
HDB installation will normally take 1 full day (approximate 8 hrs) whereas installation for other property is dependent on the piping length. Generally 1 fan coil per day is a safe guide.
2. If my air-conditioning unit is already supported on a concrete ledge or encased by a concrete or steel casing, do I still need to install a stainless steel bracket?
No. If your air-conditioning unit sits securely on a concrete ledge or inside a concrete or steel casing specifically designed to hold it, then there is no need for any retrofitting works. However, you should regularly check that there is no deterioration in the ledges or casings.
3. Do I have to install a stainless steel bracket for my air-conditioning unit if it is located within my internal balcony?
No. If your air-conditioning unit is installed within your own property and would not pose any danger to the public even if it falls off. Use of stainless steel bracket is also to avoid rust stains on walls after a period of time. However, you are advised to check the condition of the supporting bracket regularly and to replace it with stainless steel one when the condition calls for it.
4. How to ensure proper insulation during installation?
Additional insulation of thickness 10mm or more of glass wool or polyethylene foam is required under the following conditions:
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When the temperature and humidity in the ceiling exceed 30 degrees and Relative Humidity (RH) 80%.
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When the unit operates for 24 hours.
You can call Gain City at 6222 1212. We offer service, maintenance and repair facilities for all types of residential & commercial air conditioners. We deliver quality service and prompt response time for all our esteemed consumers at extremely competitive prices.
Servicing
1. How often should I have the air conditioner serviced?
It is recommended that residential air conditioner to be serviced and checked every 3 months and every month for commercial air conditioner. The duration varies with individual usage and other environmental factors.
2. Can I do my own air-con maintenance?
Cleaning of fan coil and the cover of the air condition can done easily by anyone but to take the water tray out will be tough. To vacuum the drainage system and check the refrigeration level cannot be complete without the equipment. The expertise of checking the working system is very important in maintaining the air-condition in good condition.
3. What is the advantage of regular air con servicing?
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The air conditioner will cool better.
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The electrical consumption of the air conditioning equipments will be lower.
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Air con leaking will be minimized.
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There will be less need for air con repair.
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The air con equipment lifespan will be prolonged.
4. What will happen if I do not do any servicing?
The life span of the air conditioner will be shortened, cooling coil and rotor will be clogged and water leakage may occur. Thus, this will reduce the performance and cooling efficiency of the air conditioner. The inefficient operation will then cause the electricity consumption to increase.
5. Why does the air con needs chemical cleaning?
Chemical cleaning is a very thorough way of cleaning the air conditioner. When an air conditioner is badly clogged or choked and a general service cannot improve the condition, the air conditioner is then dismantled part-by-part and chemically washed.
6. What should be done if there is a refrigerant leakage problem?
Household air-conditioner should be serviced every 2 months. Air-conditioner for office and commercial usage should be serviced once every month.
7. Do we need to service the Condenser (outdoors)? If yes, how often?
Yes. You need to service the condenser at least once a year to make sure the air circulation of the unit is not blocked. A poor maintained condenser could affect the cooling efficiency, a shorter compressor life and higher electrical consumption.
8. How often must I check or maintain the stainless steel supporting frame of my air-conditioning unit?
You should inspect them, at least, once every 6 months to see that the supporting frame has not deteriorated due to corrosion or wear and tear over time. An installer should carry out a more thorough inspection when he is engaged to clean/maintain the air-conditioning unit. If your air-conditioning unit is supported on concrete ledge, you should repair the ledge if there is crack appearing on the ledge.
9. What must I do if I need to replace my air-conditioning unit?
You must engage a trained installer to do the job as required by the law; to ensure that your air-conditioning unit is properly replaced so that it does not pose a risk of falling in future due to poor workmanship.
10. How often should my air conditioner be chemical flushed?
A qualified air conditioner technician would best ascertain the need to chemical flush when the cooling coil is badly choked and the cooling performance is deteriorating.
11. What does Chemical Flushing cover?
Chemical Flushing includes washing of the front panel (cover), air filter, drain pan & fan rotor with water, flushing it with chemical to penetrate and remove stubborn accumulated dust that inhibits in the cooling coil, clearing the drain pipe thoroughly, drying the components, and check the operating condition & temperature of the air conditioning system.
12. Can I do my own chemical flushing?
As chemical flushing is a complicated procedure, which involves dismantling of the fan coil unit components, it is advisable to engage a qualified air conditioner technician to perform the job.
13. What is the advantage of Air Purifying Filter?
Most new model of air conditioner comes with air purifying filter. Air Purifying Filter can remove smoking odor, human smell, impurities and harmful particles in the air condition space.
14. How often do we have to replace the air-purifying filter?
It is recommended that the purifying filter be replaced every three to six months. Or when the color of purifying filter (originally white color) is changed to dark brown or black. Leaving dirty air purifying filter in the air conditioning system will affect its cooling performance.
15. Can the air-purifying filter be washed?
No, it has to be replaced every three months or whenever it turns dark. The air-purifying filter is not reusable.
Troubleshooting
1. Why is the room not cold although the air con is still operating?
If there is no cool air blowing out from the unit, the outdoor condenser might not be working properly. Please arrange for the technicians to check on your condenser.
2. Why is the air con leaking water?
A normal air conditioner will have water condensate in the indoor blower and discharge through a draining pipe to the nearest drain. Water will start to leak when the drainage piping is clogged / choked.
3. Why is the room not cold enough even after the air con has been running for few hours?
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The indoor blower is dirty resulting in weak dissipation of cool air.
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The outdoor condenser is dirty resulting in incapable of producing cooling refrigerant.
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There may not be enough refrigerant in the air conditioning system.
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There might be some problem with the air conditioning system resulting in non-continuous operation of he system.
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The desired operating temperature is set too high.
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The air conditioner installed is under-sized.
4. Why is the air con not working?
One common reason is that the electrical power is not supply to the air conditioner. Perform an initial check on your electrical panel making sure that the electrical supply to the air conditioner has not trip. Otherwise, please arrange for a qualified technician to have the air conditioner checked.
5. Why is the air con noisy?
Noise is normally generated from:
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Vibration noise resulted from dirty indoor fan coil/ outdoor condenser.
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Noisy draft resulted from dirty indoor blower.
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Loose mounting of component in the air conditioning system.
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Faulty parts in the air conditioning system.
6. What happens if the filter signs light up and what is its function?
This shows that the air filter requires cleaning. The filter check indicator indicates an appropriate cleaning time, depending on the environment. This indicator acts as a reminder for users to clean the air filter. After cleaning, you need to reset by pressing the filter sign button on the remote controller to deactivate the red light.
7. Why is the air conditioner unable to receive the signal from the remote control?
The possible causes are:
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Batteries in the remote control may have run out of power.
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Objects may be blocking the receiver at fan coil unit.
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The distance between the sensor and remote control may be too far.
8. What should I do if my remote control is faulty?
You may purchase another Universal remote controller at our 8 Retail Show Rooms, 11.00am ñ 10.00pm (Mon ñ Sun).
9. What if the fan coil gets coated with ice?
There is a need to chemically flush your fan coil unit. Please engage a qualified air conditioner technician to perform the job.
10. What is the average life span of a residential air conditioner?
Generally, the average life span of any air conditioner is six to seven years. This is subjected to usage pattern and regular servicing of the air conditioner by a qualified air conditioner technician