Troubleshooting
Guide for
Water Coolers
Are you experiencing issues with your water cooler? If your point of use office water cooler, wall mounted system, or free standing cooler is acting up, FreshWaterSystems.com is here to help! Compression issues, loud noisy machine operation, and leaks, are unfortunately a few of the common problems you potentially may experience. Faulty installation or machinery can lead to trouble. This damage assessment guide will help instruct you on typical corrections you can make to fix the issues and ensure your machine runs at maximum efficiency! If this guide doesn't help serve all your needs, please contact one of our professional experts at 866.986.8895 (Mon-Fri 8:30a-7p, Sat 8:30a-4:30p EST.)

Answers To Common Troubleshooting Questions For Water Coolers

Why Is My Water Cooler's Compression Not Running?

A. Check the electrical receptacle for power and correct voltage with a volt meter. The incoming voltage must be within 10% of the rated voltage on the serial nameplate.

B. Check to make sure the wires from the wall cord are connected to the two power terminals on the cold thermostat. Check for continuity by placing one meter test lead on each thermostat terminal. If the meter shows a reading on the ohms mode, the control is operative. If no continuity exists, make sure the thermostat is not in the off position (complete counterclockwise setting). If the thermostat is not in the off position and there is still no continuity, then the capillary bulb on the thermostat must have lost its charge - replace your thermostat.

C. Check for loose wires within the compressor box to make sure all power leads are connected to the relay, overload or prestarter.

D. Make sure the relay, overload and PTC Starter are in working order by doing a continuity test.

E. Each compressor has three terminals that the electrical components plug into. These terminals are the common, start and run windings which may be tested for continuity with the ohm meter. Continuity should exist between each winding on compressors using an overload and relay. The compressors using PTC start devices should not be tested in this manner due to an internal overload. The component part should be replaced to determine if the compressor is good.

F. The wiring harness can sometimes develop an open (disruption of electrical flow) within the terminal black and needs to be replaced if all other electrical components check out satisfactorily.


Compressor Runs, But The Water Is Warm

A. The most common problem when the compressor runs, but does not cool the water is a gas leak within the sealed system. Any sign of oil within the cooler indicates a loss of freon. The cooler should be taken to an authorized service agency for service.

B. The only way to determine if a compressor is not pumping is to have an authorized service center check it out. The compressor running and not pumping will give the same results as a cooler that has lost its freon - no cool water.

C. The bottled cooler condenser should be cleaned periodically and must be installed at least 2 -4 inches away from the wall for proper air circulation.

D. The authorized service agency will determine if a bottled water cooler is short charged or over charged. In either situation, the drier must be replaced and the system should be pulled down to minimum of 500 microns during the vacuum process. An overcharged system will result in a very hot condenser and possibly the compressor tripping out on the overload.

E. A mechanical or otherwise internal restriction will cause the compressor to start and stop intermittently and a noticeable frost condition will appear at the capillary tube, drier or evaporator inlet. These conditions warrant the bottled water cooler to be sent to an authorized service agency.

F. The evaporator must be replaced by an authorized service agency if the refrigerant coils are loose on the stainless steel can.


Why Is The Compressor Cycling On Overload?

A. A dirty condenser will cause a bottled water cooler to cycle on overload. Clean cooler and make sure it is at least 4" away from the wall.

B. Check power supply. High or low voltage can cause a compressor to cycle on overload.

C. A restriction in the system will cause intermittent cycling. Send cooler to an authorized service center.

D. Overload or relay needs to be replaced if defective. Send cooler to an authorized service center.


Why Is My Water Cooler Being Noisy During Operation?

A. Check internal refrigerant lines for vibration and secure if needed.

B. Check compressor mounting, if loose - tighten.

C. If compressor is noisy internally, replace compressor.


Water Cooler Produces No Water From Cold Faucet

A. Check water bottle to make sure it is not empty. Replace bottle if needed.

B. If faucet is defective - repair or replace.

C. Unit may be frozen. Check cold control and thermowell line.

D. Control bulb not in thermowell - repair.

E. Make sure the baffle located inside the stainless steel reservoir is in the proper position.


Water Cooler Produces No Hot Water

A. Check hot tank element. Open circuit, replace heating band assembly or hot tank assembly.

B. Check hot tank overload device. Open circuit and replace.

C. Check hot tank thermostat. Open circuit and replace.

D. Check for loose connections or a break in electrical system. Correct if needed.

E. Check hot tank switch to make sure it is not in the OFF position.


Water Cooler Produces No Water From Hot Faucet

A. Check water bottle to make sure it is not empty. Replace bottle if needed.

B. If faucet is defective - repair or replace.

C. Check hot water feed line for blockage. Check for freezing conditions within can and check cold control.

D. Make sure the baffle located inside the stainless steel reservoir is in the proper position.


Water Leaks From The Water Cooler But Not From The Faucet

A. Bottle pin hole leak - replace bottle.

B. Overfilled water reservoir - drain to bottle level.

C. Faucet gasket - replace if needed.

D. Internal fitting/joints - replace.