DHP Air Compressor Trouble Shooting Guide - Section 8
NOTE: IN ANY OF THE PREVIOUSLY LISTED SOLUTIONS YOU MAY SIMPLY LISTEN FOR
THE AIR LEAK. CAUTION SHOULD BE TAKEN WHEN CHECKING THE AIR COMPRESSOR
FOR AIR LEAKS AS THE DENTAL AIR COMPRESSOR MOTOR COULD BE HOT. IF YOU
ARE AT ALL UNCOMFORTABLE WITH DIAGNOSING A PROBLEM REGARDING THE DHP
DENTAL AIR COMPRESSOR CONTACT DHP IMMEDIATELY!
Dental Air Compressor does not supply enough air to one operator
y
1) Verify by consulting the dental units owners manual that the dental unit is operating properly.
2) If the dental unit is operating properly verify the dental unit in question does not have any
additional filtration system that may require maintenance.
3) Check the dental unit junction and visually inspect for either air leak or ' kinked 'or bent hosing.
NOTE: IF ANY OF THE PREVIOUSLY LISTED SOLUTIONS DO NOT REMEDY THE PROB-
LEM CONTACT DHP IMMEDIATELY!
Dental Air Compressor does not operate-motor humming noise is evident
1) The dental air compressor motor is frozen as a result of lack of oil. Verify if the dental air
compressor head has sufficient oil by visually inspecting the motor oil site glass as per the dia-
gram in Section 6 (oil sight glass location). DO NOT ATTEMPT TO OPERATE THE DENTAL
AIR COMPRESSOR FURTHER CONTACT DHP IMMEDIATELY AS YOU MAY DAMAGE THE
MOTOR BEYOND REPAIR.
Dental Air Compressor does not operate-motor humming noise is evident. (cont.)
2) The dental air compressor motor does not have the proper electrical voltage. Verify if the
dental air compressor is 120 volts or 240 volts and using the proper electrical testing equipment
verify the electrical source is sufficient.
Dental Air Compressor motor operates but does not provide any air
1) The dental air compressor system has an open air line. Turn on the compressor and listen for
the air leak. Verify and correct the problem. Do not attempt to adjust any of the air lines on the
dental air compressor contact the DHP factory customer service representative for additional
information.
2) The dental air compressor motor shaft has broken. DO NOT ATTEMPT TO OPERATE THE
DENTAL AIR COMPRESSOR CONTACT THE DHP FACTORY CUSTOMER SERVICE REP-
RESENTATIVE IMMEDIATELY FOR ADDITIONAL INSTRUCTIONS.
The DHP dental air compressor has one function to supply clean dry air for use in a dental office
application. The dental air compressor is simple by design, however complex in operation. The
DHP dental air compressor could be hazardous to work on. If you are not confident in your ability
to trouble shoot any problem, it is strongly recommended that you contact a DHP factory cus-
tomer service representative for additional information. Our factory trained customer service
representatives are available at 1-800-423-5657 between 7:00 am and 3:30 P.M. Pacific Stan-
dard Time.
