Just Better LD-2500 Hunter Leak Detector - Manual (Page 6)

Cleaning the HUNTER’s Housing
The JB LD-2500 HUNTER’s plastic housing can be cleaned with standard
household detergent or isopropyl alcohol. Care should be taken to pre-
vent the cleaner from entering the instrument. Since gasoline and other
solvents may damage plastic, protect the unit from contact with these sub-
stances.
Troubleshooting
Except for batteries and the sensor, the internal parts of the LD-2500
HUNTER refrigerant leak detector are not user serviceable. If you expe-
rience a problem with your unit, see the Troubleshooting Table below to
determine how to remedy the problem. If you cannot remedy the problem,
take your LD-2500 HUNTER to your wholesaler for evaluation.
1. Poor sensitivity. The
HUNTER does not fi nd
leaks. 1a. Sensor has reached
the end of its useful life.
1b. Sensitivity is set to
LOW instead of HIGH.
1a. Replace the sensor. See page 4
1b. Set the Sensitivity to HIGH and
scan again for leaks
2. HUNTER is slow to
respond to leak. 2a. Filter is dirty or wet.
2b. Failure in the pump-
ing system.
2c. The sensor cover is
not sealing.
2a. Replace fi lter see page 5.
2b. Turn HUNTER on and listen for
high-pitched motor sound. IF you do
not hear the motor, return the unit to
your wholesaler for evaluation.
2c. Make sure sensor cover is prop-
erly installed. See step 4 on page 4.
3. Will not power up. 3a. Batteries are worn
out.
3b. Batteries have been
improperly installed.
3a. Install new set of batteries. See
page 4.
3b. Check battery installation as
shown in Figure 1 on page 4.
4. False alarms. The
HUNTER alarms when
the probe is moved or
bumped. 4a. Sensor leads are
bent.
4b. Moisture was
absorbed by the sensor
during a long period
without use.
4a. Remove the sensor and inspect
the leads. Straighten the leads with
needle nose pliers, if necessary, and
reinstall the sensor.
4b. Run the HUNTER for at least 20
minutes. The absorption of moisture
does not affect the life or sensitivity
of the sensor.
PROBLEM CAUSE REMEDY