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Echo™
Technical
technical hotline +44 (0)1268 563720
wireless
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wiring devices
10. TROUBLESHOOTING
The foregoing information on selecting the ideal place of installation for Transmitters and Switch Receivers has been provided to ensure a smooth
operation of the devices. If, however, you still experience problems, please refer first to the following table for troubleshooting:
Fault
Possible cause
Checking and potential remedy
No transmission
received
Transmitter fails to transmit
Close to the Transmitter (distance of around 20-50cm), the Field Strength Indicator
does not receive a transmission signal:
Activate the Transmitter, the GREEN LED fails to illuminate.
Result – The Transmitter appears to be faulty. Replace the Transmitter.
Transmitter installed
outside the receiver range
Near the receiver (distance of around 20 - 50cm), the Field Strength Indicator does
not receive a transmission signal:
Activate the Transmitter, the GREEN and AMBER LEDs fail to illuminate.
Result – Reposition Transmitter or Switch Receiver and follow the information on
coverage and installation.
Possible need for a Repeater to be added.
Transmitter was removed
(or maybe exchanged)
Always remember to delete the Transmitter from the Switch Receiver’s memory before
removing it, and/or always add any new transmitter to the Switch Receiver’s memory.
Receiver does not receive
Close to the Switch Receiver the Field Strength Indicator demonstrates good
reception of the transmitted signal:
Activate the Transmitter; the GREEN or AMBER LED of the Field Strength Indicator is
illuminated.
Result – Check the receiver is functioning and replace the Switch Receiver if necessary.
Transmitter not
programmed (or wrong
Transmitter programmed)
Re-programme the Transmitter into the Switch Receiver.
Some form of jamming is
present
The GREEN Class A or AMBER Class B LEDs of the Field Strength Indicator are
illuminated consistently: but the “Telegram Valid” LED is not illuminated.
Result – There is some form of “jamming” occurring. Find and remove the source of
jamming.
High-frequency jamming
near receiver
Move cause of jamming (telephone, PC etc.) at least 50cm away from the Switch
Receiver.
Transmission
only intermittently
received
Receiver is placed at the
limit of the transmitter’s
range
When placed near the Switch Receiver (at a distance of around 20-50cm) the Field
Strength Indicator does not receive a proper transmission signal:
When a Transmitter is operated, neither the GREEN nor AMBER classification LEDs of
the Field Strength Indicator are illuminated, but the AMBER “Telegram Valid” LED is
illuminated.
Result – Poor reception, consider repositioning either the Transmitter or Switch
Receiver, or alternatively use a Repeater.
Occasional change in
environmental conditions
(cupboard, door, plants,
people, interferes with
transmission signal)
Check the distance from high-frequency sources of interference, should be at least
50cm.
Alternatively, the Switch Receiver has been placed at the limit of the Transmitter’s
range.
The position of the
transmitter changes
occasionally (e.g.
transmitter fitted to a
mobile object)
Ensure any movement does not cause the Transmitter to move outside the reception
range.
Some form of jamming is
present
The GREEN or AMBER classification LEDs are illuminated only intermittently, but the
AMBER “Telegram Valid” LED remains off (no valid echo™ transmission).
Result – remove the cause of the jamming.
11. DISCLAIMER
The information provided in this document describes typical features of the Echo™ system and should not be misunderstood as specifying operating
characteristics. No liability is assumed for errors and / or omissions. We reserve the right to make changes without prior notice.
To find out more, visit:
www.mkelectric.co.ukEcho™ is a registered trademark of Novar ED&S Limited