Troubleshooting - 3M Versaflo TR-300 Series User Instructions

TROUBLESHOOTING

To reduce exposure to hazardous voltage:
a. Do not attempt to service the chargers. There are no user-serviceable parts inside.
b. Do not substitute, modify or add parts to the chargers.
c. Inspect the chargers and power cords before use. Replace if any parts are damaged.
d. Do not use the chargers outdoors or in wet environments.
Use the table below to help identify possible causes and corrective action for problems you may experience. There
are no user serviceable parts inside the TR-300 PAPR Assembly. The motor blower unit should not be
opened to attempt repairs or for any other reason. Consult the TR-300 Trouble Shooting Guide or Contact 3M
Technical Service to help identify additional possible causes and corrective actions for other problems you may
experience. See the 3M™ Versaflo™ Powered Air Purifying Respirator TR-300 Troubleshooting Guide and User
Instructions for TR-300 Chargers and Battery Packs for additional information.
Fault
All LEDs flash and alarm
Low airflow alarm
(audible and/or LED flashing)
Bottom bar of battery pack
indicator flashes; battery
alarm sounds
No airflow, no alarm(s)
Low airflow as indicated by
flow meter but no alarm(s)
User detects odor or taste of
contaminants or feels eye or
throat irritation
Battery pack's charge lasts
less than expected
The motor runs "faster than
normal"
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W WARNING
Possible Cause(s)
1. System software malfunction
1. Breathing tube is blocked
2. Air inlet is covered
3. Filter is fully loaded with
particles
1. Low battery voltage
2. Battery pack not properly
installed
3. Battery pack past service life
4. Battery pack temperature too
hot > 140°F (> 60°C)
1. Battery pack contact on
battery pack is damaged
2. Battery pack is completely
discharged (no charge)
3. Damaged circuit board
4. Damaged motor
1. Damaged circuit board
2. Damaged motor
3. Flow indicator not held in
vertical position
1. Incorrect respirator
for application and/or
environment
1. Inadequate charging
2. HE filter is loaded with
particles, making the motor
run harder
3. Battery pack reaching end of
service life
1. The HE filter is loaded with
particles
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Possible Solution(s)
1. To clear the alarm, power down motor/
blower unit and remove the battery pack.
Allow unit to sit for several minutes before
reconnecting battery pack and turning
the unit back on. If unit does not reset,
contact 3M Technical Service.
1. Check & remove blockage or obstruction
2. Check air filter & remove obstruction
3. Change HE filter and prefilter or spark
arrestor/prefilter
1. Recharge the battery pack
2. Remove and reinstall battery pack
3. Install a new, fully-charged TR-300
battery pack
4. Bring to cool environment, allow battery
pack to cool
1. Check that the battery pack contact is not
bent or broken
2. Fully charge the battery pack
3. Contact 3M Technical Service
4. Contact 3M Technical Service
1. Contact 3M Technical Service
2. Contact 3M Technical Service
3. Ensure flow indicator is held in vertical
position during inspection
1. Consult on-site industrial hygienist or
safety director
1. Ensure battery pack is fully charged
2. Check the low flow indicator. Replace
the HE filter & prefilter or clean the spark
arrestor.
3. Replace battery pack
1. Check the low flow indicator. Replace the
HE filter & prefilter and clean the spark
arrestor.
2. Let the unit run for 2 minutes so it can
automatically adjust to the new filter or
changes to the filter configuration
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