COOL & COOL HOME MAINTENANCE L.L.C DUBAI

 There are a number of problems that you can face; ranging from running out of water to issues with your pressure tank, booster pump, well pump, storage tank or electrical system.
If you suspect your water pump is not working or you are with out there can be several potential reasons:
1) Electricity
There may not be electricity supplied to the Water pump that provides water, this is always the one of the first items on our technicians checklist. A circuit breaker may be tripped, a fuse blown or loose, or even insects in the pressure switch- a small grey box which turns the pump on when water is used. If you have some minerals/sand in the water, they can occlude the small pipe that connects to the pressure switch and keep it from working properly. Always use appropriate safety precautions when working with electricity, or defer to a properly trained technician if you don't have the training or equipment to work with electricity safely.
2) Is the water "shut off" for some reason?"
A valve may be shut off or, if you have a water filter, the water filter may be plugged with particulate matter or not working correctly. Locate a faucet near the well pump equipment (before any filters) and see if there is water available there. If there is, it is time to locate the filter equipment or any valves that supply water and see if they are plugged or turned off. If you find valves turned off, please be careful before turning them on, they may be turned off for good reasons!
3) Is there water in the Water tank?
In Dubai water tank used for DEWA water storage and then a small booster pump that pressurizes the water for use at the house, irrigation, etc… The storage tanks are usually pretty large, usually 4+ feet in diameter and anywhere from 3 or 4 feet tall to over 12 feet tall. These tanks are frequently made of plastic, cement and sometimes metal with a hatch at the top for inspection purposes. Is this storage tank full or empty? If it is full, the problem is likely NOT the water tank, but rather a problem with the booster pump that pressurizes from the storage tank. If this tank is empty, then the problem is likely with the float valve or Dewa water disconnected.
4) Booster Pump Problems
If you have a storage tank it is very likely that you will also have a booster pump that pressurizes water from the storage tank and supplies the water to the house, irrigation, etc… This pump is typically ~12–18" long has a round motor on one end with an electrical supply wire and the other end has 2 pipes that connect it to the storage tank and the plumbing to the house. This pump turns on if water is being used and turns off when water usage stops and the pump has stored sufficient pressure in the pressure tank. Problems with the booster pump often come from pressure switches that are not working properly. Pressure switches can have burned electrical contacts, insects in the electrical contacts or plugged pressure sensor port. In some cases, booster pumps do not run because of a float switch in the storage tank that tells the booster pump to turn off in the event that the storage tank is low/out of water. If the tank is full of water and the float switch has failed, the booster pump will not run. The most common problems with booster pumps are noisy bearings or low pressure or flow output. These problems are typically the result of extended periods of operation and maintenance is necessary. In some cases low flow or pressure are caused by air or debris that has entered the booster pump and impaired its ability to pump water. The air should be vented out and the pump properly primed and any debris in the pump inlet/impeller removed. The source of any air or debris in the pump should be identified before putting the system back into operation. C & C Water Pump Repair Services has a full supply of booster pump and booster pump parts available to affect repairs in short order. Other issues with the booster pump include leaking around the shaft seal, while not an emergency, this problem will require the pump to be removed from service for a period of time to affect the proper repairs. It is recommended to replace the motor bearings when the shaft seal is replaced as moister and the wear and tear on the shaft seal have often damaged the motor bearings as well.
5) Pressure tank problems
Pressure tanks are tanks typically painted blue or white. Some of them silver/galvanized in appearance. They range in size from about 6" in diameter and height to 30" in diameter and about 6 feet tall. It is important to note that pressure tanks, in spite of their name, DO NOT MAKE PRESSURE, they simply hold pressurized water. Pressurized water is provided from either the well pump or the booster pump and fills the pressure tank. Pressure tanks work by having a bladder filled with air that pushes against the water as the booster pump fill the pressure tank. When the booster pump turns off, the air pressure in the bladder pushes on the water and can push the water back out of the pressure tank. This is helpful because it means that the booster pump does not need to turn on for every single toilet flush or hand washing. If the power is off, it means that you have a few toilet flushes, maybe even a shower or two before the pressurized water in the pressure tank runs out, but this depends entirely on the size of the pressure tank! Problems with the pressure tank happen when the captured air in the pressure tank leaked out or is at the wrong pressure. These problems exhibit as quickly fluctuating water pressure or the water turning off completely for a second or two and then coming back.
Rapidly fluctuating water pressure often comes from a water logged pressure tank. Water logged is a term used to describe a pressure tank that has no air charge in it. When water is used from a water logged pressure tank the pressure in the tank drops quickly and the well/booster pump turns on. When the pump is turned on the pressure in the system increases rapidly and then the well/booster pump turns off. This process where the pump turns on/off/on/off/on/off quickly is called rapid cycling. Rapid cycling kills pumps! Turn off the power to your pump and get your pressure tank serviced or replaced.
To see if the pressure tank is working properly turn off the power to the well/booster pump and turn on a faucet letting all the water pressure out of the system. When water stops flowing or slows to a trickle, use a pressure gauge to check the bladder pressure on the pressure tank Schrader Valve. This pressure it typically set anywhere from ~28 PSI to 68 PSI. "What should it be set at?" You may be asking. The pressure tank works in conjunction with the pressure setting of the pressure switch or pump controller. If your water system uses a pressure switch, the pressure tank should have about 2–3 PSI less than the turn on pressure of the pressure switch. For example: Your pressure switch is set to turn on the well/booster pump at 30 PSI to refill the pressure tank and it turns off at 50 PSI. This means the pressure tank should have 28 PSI in it with the pump off and the system water pressure drained to 0 PSI . While the water pressure is drained from the system, rock the pressure tank slightly. It should be light/empty feeling and you should not hear any water sloshing. Sloshing water and/or a heavy pressure tank mean that the pressure tank is due for service or replacement. If the pressure in the pressure tank is 0 with the system pressure drained and at system pressure at zero it means that there is a blown or damaged bladder in the pressure tank or a problem with the Schrader valve on top of the pressure tank that is used to fill and check the pressure tank. You can try to refill the pressure tank through the Shrader valve, but it is likely that the pressure tank is due for replacement.
Many booster pumps have a modern method of control that can vary the speed of the pump to match the water demand. These are often called constant pressure systems or VFD's. These types of systems typically have much smaller pressure tanks and use a pressure transducer. The pressure in the pressure tank for these types of systems is typically set about 15–20 PSI below the pressure set point of the pump controller. Example: Your pump controller has a pressure set point of 60 PSI, the pressure tank should have an air precharge pressure of 30–35 PSI.
If you need expertise to fix your well pump, look no further than C & C Water Pump Services Dubai.

 

AC servicing recommendation for our customers are always acute and straight forward. However, many people struggle on the decision making about what to do with their air conditioning system. We hope that the following simple questions and answers will help them think through.

1- Cleaning — How long does you turn on the air conditioning daily? If 8 hours or less, we recommend quarterly servicing; normally home use. If 8 to 12 hours and more than 12 hours, we recommend bi-monthly and monthly servicing; normally commercial and industrial use. If you never had the AC system cleaned for a long time, we recommend you booked a normal servicing with us to have the condition check and advise before we proceed.

2- Common Problem — AC leaking, AC icing or AC not cold? Mostly can recover by thorough cleaning like chemical wash or chemical overhaul, but also could be a repair issue. Please book an AC inspection appointment to further identify the real issue.

3- Repair — Are your air conditioning system still under warranty? If not sure, please contact the AC brand customer service or sales company that sold you the AC system to have them checked. This can prevent you for paying the extra money to get the air con fixed if it is done by none of the above parties.

4- Buying — Do not buy an AC system without installation package. The installation cost can be even higher than the AC system itself. Do not expect AC installation cost to be lower if you buy them separately. There will also be a few warranty issues.

 . The AC brand company may acknowledge the bought date instead of the installation date as the AC warranty start date. Please ensure the acknowledgement of the AC warranty start date from the AC brand company.

. If there is an AC failure, either the AC brand may charge you where there is an installation issue or the AC installation company may charge you on the AC parts issue. As you did not bought the AC system from them, they cannot claim from the AC brand company. This is due to some AC brand company already have their own technician team or servicing agent, so they will not accept the claim from others than their own agent.

. If you are not sure, please contact the AC brand customer service 1st by providing the warranty card or model and serial number.

Please contact us for your AC related issues 

 

Water pump is not doing automatic

You have a Water pump that is not doing automatically off/on, even though all the water flow points are closed. How the problem to be solved? There are many things to be understood for your convenience.

         i.            How the Water pump Works.

       ii.            Causes and related solutions

How the Water pump Works.

One of the water pump function is, it switches on automatically if one or more draw-off points are on and flowing water (e.g. taps, washbasins, toilets, washing machines, Dishwasher etc...)

And It switches off when all water flow points are closed.

The pressure kit/switch is controlling the automatic activation & deactivation of the water pump. The pressure switch/Kit depend on the type of Water Pump, this can be a pressure switch, a Press control, or an 'active' system. These systems only measure the pressure in the pipes between which the pump has been placed. When one or more draw-off points are on, the pressure will go down in the pressure gage, and the pump will run.

However, what do you need to do if the booster pump continues running / operating when all draw-off points are closed?

Causes and related solutions

1.       Air leaks into the system.

2.       No non-return valve or foot valve attached to the suction side or broken and leaking.

If your Pump is continues running, then there must be an air leak in the water pump or somewhere in the water flow unites or pipes. The water pump unable to build up full pressure, and therefore cannot reach its deactivation pressure level.

Or the non-return valve or foot valve attached to the suction side or broken, The Water is not standing in the suction side pipe and the water pump is unable to build the pressure to activate the pressure switches or kit. As result the water pump is continues running.

Solution: check all the water using points /pipe and fix them. Check non-return valve or foot valve and fix it.

 

Dubai has incredibly different climate to condition. Due to high humidity, very hot summer. In such cases air conditioner is very important for human comport. But air conditioner may need maintenance / repair time to time as like other home appliances or your vehicle.

10     Most Common AC Repairs

1.       Filter Cleaning

A dirty can affect the air quality / quantity and can make it slower across evaporator/cooling coil. Slow air pressure can lower refrigerant temperatures.

2.       Capacitors

A Capacitor if its for compressor, outdoor fan motor or for indoor blower motor, is essentially like battery. Most of the customer compliant about it.

3.       Contractor

A contractor in outdoor unit is like magnetic switch that connect the indoor unit to the outdoor unit when it receives a message from the indoor PCB. Sometime it gets break because of power load or compressor load.

4.       Compressor

Outdoor unit compressor is like a heart for the hole AC unit that pumping the refrigerant from the outdoor to the indoor through the capillary. When the refrigerant crosses the capillary, it becomes liquid from the refrigerant form.

5.       Refrigerant Leaks

These can occur at any time and often present themselves prematurely due to improper start-up practices.

6.       Drain clogs

A tray is installed down the Evaporator/cooling coil to cover the humidity water and drain it through the drain pipe. Some time it gets block in result the water will be dripping from the AC.

7.       Outdoor Fan Motor

An outdoor fan motor is installed in outdoor unit to keep the compressor & outdoor condenser cold. If fan motor is not in working condition then compressor will be overheating.

8.       Evaporator Coils

The Evaporator Coils/Cooling Coil is parts that is what traps the water vapor in the air and condenses it. It's made of copper and aluminum. this part will eventually fail because of these two facts. One when it gets block because of the dust, second it becomes rusty because of high humidity.

9.       Condenser Coils

Condenser Coils/outdoor Condenser Coils is the part that convert the refrigerant form the liquid form to the gas form. The condenser coil can fail from the outside dust and refrigerant leak.

10.   Thermostat

The Thermostat is a off/on switch for an air conditioner unit with that the air conditioner can be operate the way you want/to set the temperature/to check the room temperature. 

If you need AC Repair & Maintenance call us we will help you.