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1. AC should be serviced at least once a year during the start of summers.
2. It depends upon following requirements,
1. Operating time of AC: In India we have all kind of persons living near us, some keeps their AC ‘ON’ for whole day, and some operate only during night, and some for two hours before going to sleep.
   So, the funda is simple as long the operating time of AC more frequently is the requirement of service.
2. Surrounding conditions: There are different surrounding conditions according to the situation of the building i.e.,
1. Park facing
2. Main road near them
3. Commercial Building in market
4. Commercial building in Motor Market
5. Society near highway
6. House near farm
7. House in Sector
8. Near a under construction building

Different surroundings, different amount of dust, dirt, pollution etc., More is the value of dust, dirt and pollution, more is the requirement of service of AC.

AC or “air conditioner” works on the principle of compression of refrigerant gas. It has many different parts assembled together to create cooling effect. Main parts are:

1. Compressor
2. Condenser Coil
3. Expansion Valve (Capillary Tube)
4. Evaporator Coil
5. Condenser fan Motor with fan Blade
6. Evaporator Blower Motor with blower
7. PCB (Control Circuit)

If any of the above part becomes faulty, AC stops working and,
with cleaning of these parts smooth working of AC is insured.
If we do not get our AC service regularly, it leads to failure of AC through following steps,

1. Compressor starts working extra to compensate the heat loss due to dirty condenser coil.
2. Compressor starts overheating.
3. During which starting and running capacitor might get burnt, and
4. Compressor pumps oil with refrigerant.
5. Oil gets stuck in part Capillary Tube, in this case Capillary Tube should be replaced with oil and gas.
6. Now if Capillary Tube is not replaced, it results in full choking of gas, which leads to further overloading of compressor.
7. In that event, even compressor might get burnt out. In this case compressor has to be replaced.

There are many possibilities that can cause AC system to freeze up:

1. Dirty filter: Dirty Filter results in low air flow, which further results in freezing up of Evaporator coil
2. Low refrigerant: Whenever there is low refrigerant value in AC, it results in low discharge pressure/temprature and suction pressure, which further results in freezing up of AC.
3. Dirty evaporator coil: When evaporator coil will become dirty, there is low airflow and it freezes up.
4. Defective blower motor or relay: A blower motor running at low speed, sometimes not running at all causes freezing.

1. Leakage: Leakage of gas can be due to several reasons, i.e.,
1. Loose flaring nut joints: Split AC, sometimes flaring nut joint get loose due to overheating of compressor/ outdoor unit due to following reasons,
1. When outdoor unit is placed under direct sun
2. When AC is used above its capacity, i.e., when AC is running regularly for long hours, when area is too big for AC to attain/maintain desired temperature
2. Leak Brazing joints: Brazing is done at several points in outdoor and indoor unit, and when copper pipe is required to be joined, gas is leaked if at any point brazing is not done properly
3. Puncture of Copper pipe
4. Puncture of condenser coil/ evaporator coil.
2. Choking of Gas: When Compressor starts overheating.
1. Compressor pumps oil with refrigerant.
2. Oil gets stuck in part Capillary Tube, resulting in choking of gas.
3. Compressor Replacement: When ever compressor is replaced, Refrigerant gas charging is required.
4. Increase in Length of copper pipe connecting indoor unit and outdoor unit

Electricity bill can be reduced by following ways:

1. Installation of proper capacity of AC with respect to heat load of area.
   Heat Load calculation can be done by a professional through measurement of room but when choosing for home there is no requirement of such professionals. There is simple funda:

1. 1 ton AC = 10*10*10 feet room
2. 1.5 ton AC= 15*15*10 feet room
3. 2.0 ton AC=20*20*10 feet room
2. Operate AC at 22°C to 25°C Many of users think that, operating the AC at 18°C would cool the room fast as compared to 22°C setting, which is completely wrong. It doesn’t make any difference if you operate your AC at any temp. On the amount of cooling that your AC provide at a time. Only difference that it makes is,
   1. if user set the desired temp at 22°C, the compressor would stop at 21°C at again restart at 23°C
   2. and if user set the desired temp. at 18°C, the compressor would stop at 17°C at again restart at 19°C.
   So if user operates the AC at 22°C to 25°C the compressor would stop early as compared to 18°C, which helps in reducing the electricity bill.

Compressor of AC stops working due to following reasons:

1. Compressor is fully damaged
1. Compressor motor winding is brunt out
2. Compressor piston is stuck
2. Due to electrical faults
1. Thimble brunt out
2. Connecting Wire Break
3. Faulty Starting Relay
4. Faulty Starting Capacitor
5. Faulty running Capacitor
6. Faulty Programmed Control Circuit Board (PCB)

Water Leakage in AC can be due to following reasons:

1. Dirty Indoor Unit
2. Dirty Drain Tray
3. Dirty Back Drain tray
4. Choked Drain Pipe
5. Improper Installation of AC

Proper cleaning of indoor AC-unit means

1. Cleaning of Dust Filters
2. Cleaning Of Evaporator Coil, From Front as well as From Back
3. Cleaning of Front drain Tray and back drain tray
4. Cleaning of PCB Section
5. Cleaning of Blower
6. Cleaning of Whole plastic body
7. Checking of Copper Pipe Insulation behind Indoor Unit
8. Cleaning of Flexible Drain Pipe attached with Indoor unit

Cooling in Freezer Only in Frost Free Fridge is due to improper fuctioning of defrost cycle in the refrigerator, which can be due to

1. Faulty Bi-Metal Sensor
2. Fauly Defrost heater
3. Faulty Thermostat
4. Faulty Temprature Sensor
5. Faulty Programmed Control Circuit Board (PCB)
6. Faulty Defrost Timer

1. Main tip from our Team is, If any customer keeps on using faulty refrigerator, one fault leads to another fault, resulting in increase in cost of repairing,
   So, whenever there is less cooling in refrigerator, Shutdown the refrigerator and
   Please feel free to call us
2. Keep the thermostat setting of the refrigerator according to the season and keep a check on it regularly

Single door fridge or Direct Cool Fridge starts overcooling when Thermostat is Faulty

Double door fridge or Frost Free Fridge starts overcooling Thermostat is Faulty

Single door Fridge/Direct Cool Fridge: Compressor stops wroking due to following reasons:

1. Thermostat is faulty:Thermostat is used to control the cooling temperature of fridge (when temperature is high than desired set temperature, thermostat gives power supply to start the compressor.Now when temperature is achieved or temperature is as low as desired set temperature thermostat cuts off the power supply to the compressor & as soon as temperature rises above the desired set temperature, thermostat again starts the compressor). When internal electrical contact gets brunt out, or the sensor stops working it does not give power supply to start the compressor.
2. Overload relay is faulty: Overload protection relay is used to protect the compressor against voltage fluctuation & overloading of compressor. Incase if there is high volatge fluctation & customer does not switch off the fridge, overload protection relay might get brunt out & it does not give supply to compressor.
3. Compressor starting/running relay is faulty:Compressor start/run relay is used to give start to the compressor (Fridge compressor electric motor is a permanent capacitor start/run type motor. In this type of motor it is required to create a 90 degree phase shift of electric current between running winding & starting winding to run the motor & compressor start/run relay gives 90degree phase shift). If compressor start/run relay is faulty, compressoor stops working & of it is not replaced on time, compressor overload relay might also get brunt out.
4. Compressor motor winding is brunt out: When compressor motor gets winding brunt out, motor stops working & compressor stops working.
5. Compressor is stuck: Above mentioned all parts are electrical parts of compressor. Now as we come to the mechancial parts of compressor, compressor includes piston running in cylinder head, compressor sucks the low pressure liquid gas through suction/intake valve & compress the gas, & deliver high pressure gas through delivery valve. Now if piston gets stuck in the cylinder head, compressor stops working.
6. Internal fridge wiring is brunt out. Wiring works as nerves to control and supply electric current to the compressor. If wiring gets brunt out, fridge gets malfunctioning & compressor stops working.

1. Defrost timer is faulty: Defrost timer is used to automatically def.rost the fridge
2. Defrost heater is faulty bi-metal sensor
3. Programmed Control Circuit Board(PCB) is faulty
4. Thermostat is faulty:Thermostat is used to control the cooling temperature of fridge (when temperature is high than desired set temperature, thermostat gives power supply to start the compressor.Now when temperature is achieved or temperature is as low as desired set temperature thermostat cuts off the power supply to the compressor & as soon as temperature rises above the desired set temperature, thermostat again starts the compressor). When internal electrical contact gets brunt out, or the sensor stops working it does not give power supply to start the compressor.
5. Overload relay is faulty: Overload protection relay is used to protect the compressor against voltage fluctuation & overloading of compressor. Incase if there is high volatge fluctation & customer does not switch off the fridge, overload protection relay might get brunt out & it does not give supply to compressor.
6. Compressor starting/running relay is faulty:Compressor start/run relay is used to give start to the compressor (Fridge compressor electric motor is a permanent capacitor start/run type motor. In this type of motor it is required to create a 90 degree phase shift of electric current between running winding & starting winding to run the motor & compressor start/run relay gives 90degree phase shift). If compressor start/run relay is faulty, compressoor stops working & of it is not replaced on time, compressor overload relay might also get brunt out.
7. Compressor motor winding is brunt out: When compressor motor gets winding brunt out, motor stops working & compressor stops working.
8. Compressor is stuck: Above mentioned all parts are electrical parts of compressor. Now as we come to the mechancial parts of compressor, compressor includes piston running in cylinder head, compressor sucks the low pressure liquid gas through suction/intake valve & compress the gas, & deliver high pressure gas through delivery valve. Now if piston gets stuck in the cylinder head, compressor stops working.
9. Internal fridge wiring is brunt out. Wiring works as nerves to control and supply electric current to the compressor. If wiring gets brunt out, fridge gets malfunctioning & compressor stops working.

1. Compressor is Faulty
2. Refrigerant/Gas Leakage
3. Refrigerant/Gas choking
4. Faulty Elecrical Control Equipment i.e.defrost timer, defrost heater, Bi-metal sensor or PCB etc.

1. Compressor is Faulty
2. Refrigerant/Gas Leakage
3. Refrigerant/Gas choking

1. Check the compressor for its proper functioning and ensures if there is any water in the suction line of Compressor
2. If there is water in compressor, compressor has to be replced
3. And if there is no water in the compressor, freezer is replaced along with filter, capillary tube and suction pipe
4. Then leakage testing is done to ensure there is no leakage in the system
5. Then Technician vaccuumm the system fully
6. Refrigerant/Gas is Charged to the proper level

1. Do Not Spill Water on Timers/PCB during cleaning of Machine
2. If Spin tub is hitting the side walls, it should be stopped and clothes should be rearranged in proper manner
3. Washing Machine should not be overloaded
4. if there is any internal water leakage in the washing machine, switch off the washing machine and call us
5. Before putting the clothes in washing machine, please ensure pockets are empty and there are no coins in the pocket

Whenever we Wash clothes, forgien particles deposits in the washing machine and
Whether we believe it or not while washing clothes, some of the clothes fell in the semi open space of washing machine which is required to be removed and
There is scale formation in washing machine due to hard water, and scale is required to be removed for smooth fuctioning of washing machine

Fully automatic washing machine is not switching on can be due to whether
Faulty Electrical Comnnection or
Faulty Programmed Control Circuit Board (PCB)

Top loading fully automatic washing machine is washing clothes but not spinning clothes is mainly due to two Reasons

1. Faulty Programmed Control Circuit Board (PCB) in fully automatic washing machine
2. Faulty Drain Pump motor
3. Unbalanced wash/spin Tub
1. Washing Machine not balanced on Ground
2. Faulty Shock absorbers
4. Faulty Gear Box Assembly
5. Faulty Drive Belt
6. Faulty drive Pulley

Semi automatic washing machine stops Spinning Clothes in following conditions

1. Faulty motor (Spinning Motor)
2. Faulty Timer(Spin Timer)
3. Faulty drive Pulley

Fully automatic washing machine not taking water can be mainly due to following Reasons

1. Faulty Water level sensor in fully automatic washing machine
2. Faulty Water Inlet Valve
3. Faulty Programmed Control Circuit Board (PCB) in fully automatic washing machine

Fully automatic washing machine not draining water is mainly due to two Reasons

1. Faulty Programmed Control Circuit Board (PCB) in fully automatic washing machine
2. Faulty Drain Pumpmotor

Fully automatic washing machine keeps on taking water even when drum is full is mainly due to two Reasons

1. Faulty Water level sensor in fully automatic washing machine
2. Faulty Programmed Control Circuit Board (PCB) in fully automatic washing machine

Semi automatic washing machine stops washing Clothes in following conditions

1. Faulty motor (Washing Motor)
2. Faulty Timer(Washing Timer)
3. Faulty Drive Belt
4. Faulty Gear Box Assembly
5. Faulty drive Pulley

Washing machine keeps on draining water whether Drain Assembly is faulty or there is obstruction in drain water duct which is caused due to

1. Scale formation in duct
2. Coins in duct
3. Sometimes Rubber bands in duct
4. Forgien particles in duct

Water leakage in washing machine is mainly due to

1. Faulty water seal in washing/spinning tub
2. Faulty Programmed Control Circuit Board (PCB) in fully automatic washing machine
3. Faulty Water level sensor in fully automatic washing machine
4. Damaged Drain Assembly
5. Damged Water Hose

There is 3 months warranty on the workmanship of the technician and minimum 3 months warranty on spare part or
warranty specified by company on that spare part (for ex. 1 year warranty on compressor) and
sometimes no warranty if spare part made of plastic or Company is not offering any warranty

Labour cost depends on the type/amount of Work to be done to repair the faulty machine
and Visit charges only include the checking of machine to find the fault and give an estimate

We give free estimates on call only, if visiting the customer premises is required to give an estimate, our Trained techincians visits the said premises, gives an estimate and If customer gives a positive consent to the technician, he gets the work done and charge the money according to the estimate given and if customer just wanted to get the estimate, our technician charges only visit charges or checking charges.

BSD Enterprises do not have any spare parts with them
If there is any requirement of any spare part, our Technicians visit the particular authorised spare part dealer of the company of which part is required

Whenever Customer calls us for any type of repair service required, our Trained Technician visits the customer and identify the fault, gives an estimate to the customer
If customer gives a positive consent to the technician, he repairs the fault and charge the money according to the estimate given,
And no extra Visit charges are taken by us

Yes BSD Engineers calls the customer before reaching at their doorstep

Yes we provide week-end service

BSD Enterprises do not sell any spare parts
If there is any requirement of any spare part, our Technicians visit the particular authorised spare part dealer of the company of which part is required