Service And Repair - Horstmann ThermoPlus AS2-RF User Operating Instructions Manual

No Signal Indicator
Should your AS2-RF enter the Fail Safe Mode this will be conveyed by the LCD display
showing 'No Sig' every 3 seconds. This indicates that the AS2-RF has not received a signal
to confirm the last 'Warm/Cool' change from the receiver.
To resume normal operation please use the following procedures;
1. Press the 'Warm/Cool' button on the front of the AS2-RF for 5 seconds, or until the
display illuminates, then press again to send a signal to the receiver, if successful this will
make the 'No sig' flag disappear .
or
2. Check the receiver, if the LED is not illuminated this indicates a power interruption
or disconnection. In this case, the mains supply should be checked and if it cannot be
restored the assistance of an electrician or service engineer should be sought.

Service and Repair

The ThermoPlus AS2-RF is NOT user serviceable. Please do not dismantle the unit.
In the event of a fault developing please refer to the RESETTING THE AS2-RF TRANSMITTER
section on page 14. If this fails to resolve the problem please contact a local heating
engineer or a qualified electrician.
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