Honeywell NOTIFIER INSPIRE E10 Commissioning Instructions page 28

Messages and their Meanings
Message
OPEN CIRCUIT ON POSTIVE LINE
OUTPUT DRIVER FAULT
PARTIAL OPEN /SHORT CIRCUIT
28
Meaning and possible remedial action.
If a fault persists then seek advice. Any remedial action requiring wiring
or replacement of parts, this work must be done by a trained engineer.
An open circuit has been detected on the positive line
of loop wiring.
Action: Check the wiring to terminals at suspected
devices on the positive line of loop circuit and rectify
the fault.
The output driver is faulty.
Action: Affected module must be replaced.
A partial open / short circuit has been detected on
a loop wiring. This fault will affect devices ability to
detect fire.
Action: Check the loop wiring to the terminals at
suspected devices and also check the loop wiring for
damage. Take corrective steps to rectify the fault.