Microsoft Word - TR300 Troubleshooting Guide Rev_1

TR-300 PAPR Trouble Shooting Guide

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Published: December, 2011

Replaces all previously issued until superseded

The following table is intended to help the user troubleshoot certain situations that may occur with the 3M

Versaflo™ TR-300 Powered Air Purifying Respirator Assemblies. If you cannot identify your problem in the

chart below, please consult your supervisor or contact 3M Technical Service. There are no user serviceable

parts in the TR-300 motor/blower or battery packs. For additional assistance with the TR-300 PAPR or the TR-

300 batteries and chargers consult their User Instructions. Also see 3M Technical Data Bulletin #178 –

Maintenance and Care of 3M Powered Air Purifying Respirator Battery Packs.

Probable Cause Possible Solutions

Fault/Problem Possible Cause Possible Solutions

Low airflow alarm (audible and

fan LED flashing).

1) Filter is fully loaded with

particles.

2) Breathing tube is

blocked.

3) Air inlet is covered.

1) Change high efficiency (HE) filter and prefilter or

spark arrestor/prefilter if used.

2) Check and remove blockage or obstruction.

3) Check air inlet and remove obstruction.

Motor/blower battery alarm

(audible and battery LED)

sounds and flashes.

1) Low battery charge

(voltage).

2) Battery not properly

installed.

3) Battery temperature too

hot (greater than 140ºF or

55ºC).

4) Battery not recognized by

the turbo.

1) Recharge the battery pack.

2) Remove and reinstall battery.

3) Bring to cooler environment and allow battery pack

to cool.

4) Check that correct 3M battery is used. Remove

and reinstall battery.

All alarms on blower unit flash

and sound simultaneously.

1) Software system

malfunction.

2) Motor/fan not turning due

to obstruction.

3) Damaged motor.

1) Power down (turn off) motor/blower to clear

alarms. If unit does not reset contact 3M

Technical Service.

2) Remove filter and check for obstruction in the fan.

3) Replace turbo or contact 3M Technical Service.

No airflow, no alarm(s),

motor/blower does not start.

1) Battery contact is

obstructed or damaged.

2) Battery is completely

discharged.

3) Damaged circuit board.

4) Damaged motor.

1) Check that the battery contact on both the battery

and turbo is clean and that the pins are not bent or

broken. Replace battery pack if contact is

damaged. Replace turbo if the pins are bent,

broken, or otherwise damaged.

2) Fully charge the battery pack.

3) Contact 3M Technical Service.

4) Contact 3M Technical Service.

Airflow indicator shows proper

airflow, no alarm but user

perceives lower flow than

expected.

1) If S-600, S-700 or S-800

Series hoods or M-series

headgear is used, airflow

distribution setting may

not be optimized for user

1) Adjust headgear airflow to optimal setting for users

comfort. Consult the User Instructions for the

specific headgear used.

Trouble Shooting

Guide

3M™ Versaflo™ TR-300 Powered Air Purifying Respirator (PAPR) Assemblies

TR-300 PAPR Trouble Shooting Guide

Page 2 of 4

Fault/Problem Possible Cause Possible Solutions

Airflow indicator shows proper

airflow, no alarm but user

perceives lower flow than

expected, continued

comfort.

2) Breathing tube damaged

or improperly connected.

3) Airway obstructed in

breathing tube or

headgear.

2) Inspect and replace or reconnect breathing tube.

3) Check breathing tube and headgear and remove

blockage or obstruction.

Low airflow as indicated by

airflow indicator but no

alarm(s).

1) Damaged circuit board.

2) Damaged motor.

3) Airflow indicator not held

in vertical position.

4) Airflow indicator ball or

tube may be damaged or

dirty.

1) Contact 3M Technical Service.

2) Contact 3M Technical Service.

3) Ensure flow indicator is held in vertical position

during airflow check (consult TR-300 PAPR User

Instructions).

4) Rinse airflow indicator in clean water to help free a

stuck ball. If indicator is damaged replace with a

new airflow indicator.

Motor/blower low airflow

indicator alarms (audible and

fan LED flashing) but airflow

indicator reads adequate flow.

1) Use in high altitude

(above 2600 ft (800m)).

1) Changing the high efficiency (HE) filter prefilter or

spark arrestor/prefilter (if used) may help. Contact

3M Technical Service. You may need to use an

alternate PAPR

Motor/blower slow to float the

airflow indicator ball.

1) Ball stuck.

2) Not a malfunction.

3) Circuit board or other

system failure.

1) Rinse airflow indicator in clean water to help free a

stuck ball.

2) Under normal operation the TR-300 motor/blower

may take up to 1 minute to ramp up to a stabilized

airflow. Review airflow check procedures in the

TR-300 PAPR User Instructions.

3) If the motor/blower is taking longer than expected

for normal operation, contact 3M Technical

Service.

Motor/blower does not turn off

when power button is pressed.

1) Power button not held an

adequate length of time.

2) Circuit board

malfunction.

1) To turn off the motor/blower, press and hold the

power button for 2 seconds.

2) Remove battery and reinstall. If unit does not reset

contact 3M Technical Service.

User detects odor or taste of

contaminants or feels eye or

throat irritation.

1) Incorrect respirator for

application and /or

environment.

2) Breathing tube or

headgear damaged.

3) Breathing tube not

connected or improperly

connected to PAPR or

headgear.

4) High efficiency (HE)

Filter not in place or filter

gasket damaged.

5) Nuisance odor carbon on

filter is exhausted.

1) Consult on-site industrial hygienist or safety

director.

2) Inspect breathing tube and headgear per their User

Instructions. Replace if damaged. Do not attempt

to repair.

3) Detach breathing tube and reconnect per User

Instructions.

4) Replace high efficiency (HE) filter.

5) Replace high efficiency (HE)/nuisance odor filter.

Bottom bar of battery pack

charge indicator flashes.

1) Low battery charge

(voltage).

1) Recharge the battery pack.

Battery charge indicator shows

less than 5 bars after charging.

1) Battery is past its service

life. As the battery pack

ages, it will normally lose

capacity. An older battery

pack may show less than 5

bars after completing a

charge cycle or may not run

as long as a new battery.

1) Replace battery pack.

TR-300 PAPR Trouble Shooting Guide

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Fault/Problem Possible Cause Possible Solutions

Battery pack’s charge lasts less

than expected.

1) Inadequate charging.

2) High efficiency (HE)

filter is loaded with

particles, making the

motor run harder.

3) Battery pack reaching end

of service life. As the

battery pack ages, it will

normally lose capacity.

An older battery pack may

not run as long as a new

battery.

4) Use at high elevation

(above 2600 ft (800m)).

5) Using TR-330 Economy

battery pack, situation

may require high capacity

battery pack.

1) Ensure battery pack is fully charged per battery

pack indicator.

2) Replace the high efficiency (HE) filter and

prefilter or spark arrestor/prefilter if used.

3) Replace battery pack.

4) Changing high efficiency (HE) filter and prefilter

or spark arrestor/prefilter (if used) more often may

help. Use alternate PAPR.

5) Install high capacity battery pack (TR-332).

At beginning of charge cycle,

charger display indicates error.

1) Internal software needs to

be reset.

1) Remove battery pack from charger. Place on

motor/blower and run for 30 seconds. Replace on

charger. If situation does not resolve contact 3M

Technical Service.

“Power on” indicator on charger

not lit.

1) AC power cord not

connected to wall outlet

or power cord not

connected to charger

cradle or 4-station base.

2) Power cord not

functioning.

3) Cradle not seated

properly in multi-base.

4) Power supply (source)

not functioning.

5) Defective charger cradle.

6) Blown fuse (TR-344N)

1) Check all power supply connections.

2) Replace power cord.

3) Remove and reseat cradle.

4) Switch to an alternate power supply (source).

5) Replace charger cradle.

6) Replace fuse 250V; 15A.

Battery will not go into charge

mode (will not charge, no fault

indication on charger).

1) Battery is fully charged.

2) Battery not seated

properly in cradle.

3) Defective battery.

4) Defective charger.

5) Battery too hot or too

cold.

6) Charger cradle pins

broken or damaged.

1) No action necessary.

2) Remove battery and reseat in cradle.

3) Replace battery.

4) Replace charger.

5) Allow battery to return to room temperature.

6) Replace charger cradle.

Error message (amber and green

light flashing) on charger.

1) Fault condition identified.

2) Defective battery

1) Remove battery from cradle and reinsert. Reseat

cradle in docking station if used. If situation does

not resolve contact 3M Technical Service.

2) Contact 3M Technical Service.

Charger indicates complete

charge, but battery pack charge

status indicator shows less than

5 bars.

1) Battery pack has reduced

capacity due to age or

damage.

1) Remove battery pack from service and replace with

new pack.

Battery pack does not accept a

full charge.

1) Charging location

(environment) or battery

excessively hot.

1) Review procedure for battery charging in the User

Instructions. Charge battery in room temperature

location. Allow battery to cool to room

temperature prior to charging.

TR-300 PAPR Trouble Shooting Guide

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Fault/Problem Possible Cause Possible Solutions

Motor/blower slides along belt. 1) 3-bar slides not installed

on belt.

1) Install two 3-bar slides on belt per TR-300 PAPR

User Instruction.

! WARNING

These respirators help protect against certain airborne contaminants. Use of 3M™ Powered and Supplied Air

Respirators by untrained or unqualified persons, or use not in accordance with the instructions, may adversely affect

product performance and result in sickness or death. Powered and supplied air respirators are to be used only by

qualified persons who are properly trained in their use and maintenance and only in accordance with their operating and

maintenance manuals. Each person using these products must first read and understand the operator's manual. See

supervisor for assistance or call 3M OH&ESD Technical Service in U.S.A. at 1-800-243-4630. In Canada call 1-800-

267-4414.

Versaflo,

3M are trademarks of 3M Company, used under

license in Canada.

For More Information:

In US: Website: www.3M.com/occsfety

Technical service: 1-800-243-4630

In Canada: Website: www.3M.com/CA/occsafety

Technical Service: 1-800-267-4414

3M Occupational Health and

Environmental Safety Division

3M Center, Building 235-2W-70

St. Paul, MN 55144-1000