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T51002 E
InstallatIon, servIce and troubleshootIng Procedures
LIST OF EFFECTS WITH DESCRIPTIONS
Referenced from the TROUBLESHOOTING MATRIX, use the below table to obtain a more detailed description of
the effects. Each is identified by the corresponding name and letter (column).
EFFECT DESCRIPTION
A
Indicator lamp on intermittently The indicator lamp flickers and does not stay lit for any length of time while inflating.
B
Indicator lamp on for more than
10 min.
During normal operation, the indicator lamp may come on while tires are being inflated. If
the indicator lamp is on for more than 10 min., it is likely indicating the existence of a leak.
NOTE: After startup, the lamp will remain on while inflating low tires.
C
Indicator lamp continuously on The lamp comes on and stays on after power is applied to trailer.
D
Indicator lamp is always off
There may be no noticeable change in lamp status after power is applied to trailer if system
integrity is good and tires are consistently at target pressure. If in doubt, perform INDICATOR
LAMP TEST on page 45.
E
All tires low With the CP system, wheel valves only allow air to flow in one direction for inflation and tires
are independent.
For the PRO system, wheel valves allow air flow in both directions and tire pressures
are equalized while parking brakes are released. As a safety precaution, wheel valves
automatically close when necessary.
F
Tires low at any one wheel end All other wheel ends appear to have normal inflation and tire pressure.
G
Tires low on one axle Tires are low at both wheel ends of a common axle.
H
Tires not inflating to target
Tires are low and no indicating of inflation from TIREMAAX
®
. Refer to effect E.
I
One dual tire low Only one tire is affected for the wheel end of a dual tire wheel end.
J
Air leaking from controller
enclosure
Air can be heard and/or felt leaking from inside the controller enclosure. If air continues to
exhaust or leak, investigate probable causes. For a PRO system, refer to effect K.
K
Air exhausting from delivery
dump ports
This would be normal for a TIREMAAX PRO during deflation or for 1 to 2 seconds after
applying emergency brake. Excess delivery pressure is exhausted from the delivery dump
ports within the controller (Figure 52 on page 50).
L
Damage to tire hose Noticeable damage exists to tire hose(s), especially on the same wheel end or side.
M
Air exhausting from axle vent
Escaping air pressure can be felt and/or heard from the axle vent tube Figure 15 on
page 18.
N
Controller cover missing or
damaged
The controller cover is not present or is damaged in some way.
O
No delivery pressure No air (pressure) is available at the deliver port on the controller
P
Low delivery pressure It is normal for the delivery pressure to be low while there is no air flow through the
controller. Otherwise, a problem may exist.
Q
Controller cover will not close The cover closes with difficulty or not at all.
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