Troubleshooting - Daikin VAM350J VEB Series User Reference Manual

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Troubleshooting

9 Troubleshooting
Installer and user reference guide
28
If one of the following malfunctions occur, take the measures shown below and
contact your dealer.
The system MUST be repaired by a qualified service person.
Malfunction
If a safety device such as a fuse, a breaker or an
earth leakage breaker frequently actuates or the
ON/OFF switch does NOT properly work.
If water leaks from the unit.
The operation switch does NOT work well.
If the controller display indicates the unit
number, the operation lamp flashes and the
malfunction code appears.
If the system does NOT operate properly except for the above mentioned cases
and none of the above mentioned malfunctions is evident, investigate the system
in accordance with the following procedures.
INFORMATION
The unit may not operate as requested due to a filter contamination check.
In case a malfunction code appears on the indoor unit controller display, contact
your installer and inform the malfunction code, the unit type, and serial number
(you can find this information on the nameplate of the unit).
For your reference, a list with malfunction codes is provided. Refer to
4
codes: Overview" [ 102]. Depending on the level of the malfunction code, the
code can be reset by pushing the ON/OFF button. If NOT, ask your installer for
advice.
If after checking all above items, it is impossible to fix the problem yourself, contact
your installer and state the symptoms, the complete model name of the unit (with
manufacturing number if possible) and the installation date (possibly listed on the
warranty card).
Malfunction
The system does NOT
operate at all.
Turn OFF the main power
switch.
Stop the operation.
Turn OFF the power supply.
Notify your installer and report
the malfunction code.
Measure
▪ Check if there is no power failure. Wait until
power is restored and restart operation.
▪ Check if no fuse has blown or breaker is activated.
Change the fuse or reset the breaker if necessary.
▪ Check if the indication of the operation control
method on the controller is shown. This is normal.
Operate the unit using the air conditioner remote
control or the central controller. Refer to
4
"17 Configuration" [
▪ Check if the indication of operation standby is
displayed on the controller, indicating that the unit
is precooling/preheating. The unit is at stop and
will start operation
preheating operation is completed. Refer to
4
"17 Configuration" [
Measure
"21.3.1 Error
69].
after the precooling/
69].
VAM350~2000J*VEB*
Heat reclaim ventilation unit
4P664012-1A – 2024.01