MATRIX Control Panel OP71 Maintenance, Cleaning and Troubleshooting
PR-2009-0021-GB • Subject to modifications • R5-04/2016 93
Direct eva-
porator
6.0 LP pressostat triggered The low-pressure pressostat has triggered.
➯ For troubleshooting and repair, also see Operation Manual
of the Split external unit.
6.1 Compressor failed The compressor was switched off because of too low tem-
perature (anti-icing protection)
➯ For troubleshooting and
elimination of the fault signal, see also operation manual MA-
TRIX 4700/Chapter 5.4.8.3.
Extract air-
manager
7.0
–
7.15
Positive or negative
pressure
Group X has positive or negative pressure (X = 0 to 15). Ü It is
necessary to check with the MATRIX.PC service tool. We
recommend commissioning an authorized service center.
Operating
error
13.0 Insufficient data An internal or external error (insufficient data for controller) has
occurred which cannot be resolved by the user.
➯ Please
contact an authorized service center and describe the error
message.
13.1 Dew/pump
failure
There is a defect in the condensate pump or the condensation
sensor.
➯ For troubleshooting and repair, see the Operation
Manual of the air treatment unit.
13.2 Frost protection is active The frost protection is active The temperature of the supply air
has dropped to 4°C or less.
➯ To ensure a proper heating
medium supply, possibly check the valve control or boiler
control (also see Operation Manual of the air treatment unit).
13.3 Motor protection has
triggered
The motor protection has triggered. Fan motor temperature is
too high.
➯ Allow fan motor to cool down and switch on once
again. In case of recurrence, remedy the cause of overheating
(see Operation Manual of the air treatment equipment).
13.4 Louvre data missing Data for the control of the secondary-air louver is missing.
➯
Check connection of the room/supply-air sensor, possible cable
break/short-circuit or missing, even though the control for the
secondary-air louver (software) requires a sensor.
13.7 Filter is dirty Filter contamination is signaled.
Remove and clean the filter. (For maintenance, see also the
operation manual for your air treatment unit.)
13.8 Duct pressure too low The duct pressure is too low.
➯ For troubleshooting and repair,
see Operation Manual of the air treatment unit.
13.9 Duct pressure too high The duct pressure is too high
➯ For troubleshooting and repair,
see the Operation Manual of the air treatment unit.
Error group Error-
number
Error text Error description ➯ Error correction
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