“no5 (S)” MEANS NO SIGNAL!!:
If this appears on the display, it means the monitor has lost the “S”ignal from one or more transmitters. Along
with the no5 (S), you will see a red flashing LED and the word SENSOR on the screen. When the backlight turns
off, the flashing no5 and “sensor” disappear but the red light will remain. This issue needs to be addressed when
convenient (before leaving on a trip, at the next rest stop or campground, etc.).
There are multiple possible causes for this warning.
a) The booster is not functioning. All TireMinder™ systems come with a booster included. If you have not
installed it, then “shame on you.” If it is installed, check that the booster is powered correctly. You should
see a green LED glow from one end of the unit. See “Signal Booster a Must” (page 35).
b) The antenna was not fully extended causing weak reception.
c) The system is over 9 months old and the transmitter batteries need to be replaced. One of the transmitters
has been lost or damaged.
d) Electronic Interference: With the constant addition of new wireless products (many running at 433 MHz), it is
possible that the TireMinder® signal is being interrupted by electronic interference. If the signal comes back
or is lost intermittently, you can rest assured the loss is due to such interference. 90% of this problem is
cured by using the booster. Is yours installed with a green LED glowing? If YES, and all other possible signal
loss reasons have been eliminated, consider moving the booster to a more central location.
e) Distance: Under normal operating conditions, distance is not an issue if you have installed the booster. At
the same time, extreme cold and low transmitter battery (under 3 volts) power will shorten the operating
distance even with a booster installed.
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