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TM 55-1905-220-14-8
4-5. GENERAL (Continued).
Table 4-12. Drinking Fountain Troubleshooting (Continued).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3. Little or no water from bubbler valve.
Step 1. Low or no supply water pressure, pressure should be
20 - 125 psi (137.9 - 861.9 kPa).
Restore supply water pressure.
Step 2. Stoppage in the bubbler valve.
Disassemble, inspect and repair bubbler valve.
Step 3. Cold water line or cooling tank frozen (compressor
runs continuously).
Replace cold control.
Check that cold control bulb is fully and firmly
installed into thermowell.
4. Bubbler valve stream to high or too low.
Step 1. Bubbler valve flow regulator improperly set.
Adjust bubbler valve flow regulator.
Step 2. Improper supply pressure.
Check supply pressure - 20 - 125 psi (137.9 861.9 kPa).
5. Compressor runs continuously.
Step 1. Improper usage.
Check for and correct excessive usage or hot supply water.
Step 2. Cold control set too cold.
Adjust cold control CCW to lower setting.
4-50


 


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