Remtron Command Pro 21T10 User Manual page 12

are firmly snapped in place and that the RF/Decoder
board is firmly attached to the back of the Relay
board.
Check antenna connections.
7. If Operating Range is short, Check all antenna
connections and the transmitter operation.
On new installations, verify the receiver antenna is
placed properly. If necessary, use an antenna
mounting kit to relocate the antenna to a more
favorable location.
Replace the RF/Decoder board.
8. If any of the Contact Sense (Relay Sense) indicators
are lit (21R22 only), a difference between the
intended output command and the relay (or contactor
state occurred. This is usually caused by a failed
relay contact.
The indicator will remain illuminated even after the
transmitter is turned off. The next time the transmitter
is turned on, or if the receiver power is cycles, the
indicator will turn off unless the problem remains.
If external inputs are used for contact sensing,
examine and repair if appropriate the wiring between
the back conacts of the directional contactor and
the receiver input. Also examine the contactor for a
problem.
SECTION 3: TROUBLESHOOTING
3.3