DeVilbiss iFill 535D - Troubleshooting Chart B

LT-1929
12
TROUBLESHOOTING
NOTE–After completing any repairs, ensure Hour Meter on the right cover is connected to the DC wire harness and the Control
Panel ribbon connector is connected to the main PC Board prior to installing the left cover. Also ensure magnet has been removed if
used to troubleshoot.
NOTE–Before returning to service, the iFill Station should undergo a Performance Test to ensure it is operating properly (refer to
page 9).
TROUBLESHOOTING CHART B
Problems during fill cycle
(After unit running longer than approximately 4 minutes run time.)
Symptom
(during ll - after 4 minutes) Possible Cause Remedy
(A) The unit runs for 11 minutes after
start up then shuts off and alarms.
- Note that if the OSD does not see
91% oxygen after 11 consecutive
minutes the unit shuts off and
alarms.
- (If unit is in warm up mode the
three-way click sound will not be
heard every 24 seconds)
1. System air leak (compressor tubing, sieve
beds, accumulator tank, bacteria lter, etc.).
1. Repair or replace as necessary.
2. Faulty OSD on main PC board. 2. Replace main PC board.
3. Faulty sieve beds. 3. Replace sieve beds.
4. Faulty rotary valve. 4. Replace rotary valve.
5. Faulty compressor (low output ow). 5. Replace compressor.
(B) The unit shuts off and alarms prior
to lling a cylinder to 2,000 PSIG.
- Verify unit did not go back into
warm up mode for 11 consecutive
minutes per (A) above.
- The intensier drive piston travels
slowly and or does not travel fully
as veried visually with magnet.
- (Similar to start up
Troubleshooting A, #9 but this
usually occurs during cylinder
lling at higher pressures)
1. System air leak (compressor or four-way
valve tubing connections)
1. Repair or replace as necessary.
2. Faulty four-way valve (internal leakage) 2. Replace four-way valve.
3. Faulty compressor (verify faulty compressor
by using duck bill pliers to pinch the tubing
closed that comes from the compressor just
below the small DC power supply board. If
the compressor PR valve does not pop off
immediately, replace the compressor)
3. Replace compressor.
4. Faulty intensier. 4. Replace intensier.
(C) The unit shuts off and alarms prior
to lling a cylinder to 2,000 PSIG.
- The intensier drive piston travels
to the end and sits there until unit
alarms. (See Troubleshooting A,
#7)
1. DC wire harness not properly connected to
Intensier hall effect board.
1. Reconnect DC wire harness to
intensier hall effect board.
2. Faulty or intermittent four-way valve. 2. Replace four-way valve.
3. Faulty main PC board. 3. Replace main PC board.
4. Faulty DC wire harness. 4. Replace DC wire harness.
5. Faulty intensier. 5. Replace intensier.
(D) The unit runs for an extended
period of time and does not ll a
cylinder or complete a normal ll
cycle. The unit does not alarm.
- Verify unit does not constantly go
in and out of warm up mode for
several minutes at a time, but not
for 11 consecutive minutes as in
(A) above.
1. System air leak (compressor tubing, sieve
beds, accumulator tank, bacteria lter, etc.).
1. Repair or replace as necessary.
2. Faulty sieve beds. 2. Replace sieve beds.
3. Faulty rotary valve. 3. Replace rotary valve.
4. Faulty compressor (low output ow). 4. Replace compressor.
5. Faulty intensier. 5. Replace intensier.