0906-E
35
FAULT CODES
FAULT PROBES AND SENSORS
Fault Code: 081, 083, 086, 087, 089, 1n1, 1n2, 2n6
Description
One or more temperature probes or pressure sensors located on circuit n or elsewhere are short circuited,
cut or disconnected.
Probe or sensor affected by the problem
Water inlet temperature probe ! code 081
Water outlet temperature probe ! code 085
Air temperature probe ! 083
Heat recovery exchanger inlet temperature probe ! code 086
Heat recovery exchanger outlet temperature probe ! code 087
High Pressure Sensor ! Code 1n1
Unit without EEV
Low Pressure Sensor ! Code 1n2
Unit with EEV
Low Pressure Sensor or suction probe ! Code 2n6
Action
$
Immediate shut down of circuit n for faulty sensors.
$
Immediate shut down of ALL circuits for faulty water outlet temperature and air temperature probes.
$
No shut down for the other faults.
$
Fault signal shown on the display.
$
The remote fault signal is delayed by 6 minutes.
Reset
The unit returns to normal operation after the signal from the faulty probes or sensors is re-established.
Possible causes Solving the problem
Damaged probes or sensors Remplace probe or sensor
Wrong wiring or loose connection on a probe or
sensor
Check probes and sensors connections and
wiring.
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