Trouble Shooting - Daikin VAM-FA8VE Technical Data Manual

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8
8.4.5 Inspection of the Fan Motor
8.4.6 Replacing the Humidifier Element <VKM-GAMV1 series only>
8.5

Trouble Shooting

8.5.1 The Following Situations are not Malfunctions.
8.5.2 If One of the Following Malfunctions Occurs, take the Measures Shown below and Contact
Your Daikin Dealer.
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• HRV • VKM-GA(M)V1
For dealers
Inspected
part
Items to be inspected
Check for clogging
Strainer
(80-mesh)
Check o-ring for cracks
Check for operation of float
switch
Feed
water tank
Check for dirt
Check for shutting and opening.
Solenoid
Check in a similar fashion when
valve
checking the float switch operation.
Note
•
When the fan motor fails, the remote controller does not display any error code.
Usage under that status will lead to insufficient ventilation.
The air supply and exhaust fans should be checked once every one or two months.
You can make a simple check such as below way.
To check the wind flow, hold a bar of which the end has a string or other similar lightweight item over the
supply grille and exhaust grille.
•
The humidifier element needs to be replaced regularly.
The humidifier element should in general be replaced once every three years when supply water is soft
water, but outside factors (If the water quality is hard water, etc.) as well as operating conditions (24-
hour-a-day air conditioning, etc.) may shorten its productive life.
•
Contact your dealer if you have any questions.
•
Operation does not start.
<Symptom>
The icon " " (under centralized control) is displayed on the remote controller and pressing
the on/off button causes the display to blink for a few seconds.
<Cause>
This indicates that the central device is controlling the unit.
The blinking display indicates that the remote controller cannot be used.
<Symptom>
The fans rotates after 1 minutes when pressing on on/off button.
<Cause>
This indicates that the operation is in preparation.
Wait for about 1 minute.
•
Operation stops sometimes.
<Symptom>
"U5" is displayed on the remote controller and the operation stops but then restarts after a few minutes.
<Cause>
This indicates that the remote controller is intercepting noise from electrical appliances other than the
HRV unit, and this prevents communication between the units, causing them to stop.
Operation automatically restarts when the noise goes away.
•
"88" is displayed on the remote controller.
<Symptom>
It displays immediately after the power is turned on, and disappears after several seconds.
<Cause>
This indicates that the unit is checking whether or not the remote controller is normal.
It is only displayed temporarily.
The system must be repaired by a qualified service person.
DO NOT CHECK AND REPAIR OPENING INSIDE THE UNIT BY YOURSELF.
WARNING
When the HRV is in abnormal conditions (smell of something burning, etc), cut off the power, and
contact your dealer.
Continued operation under such circumstances may result in a failure, electric shock, and fire.
• HRV • Heat Reclaim Ventilation
Content of maintenance
Solution
Clean if clogged.
Replace if cracked.
Clean if it does not work
properly due to build-up.
Clean if very dirty.
Replace if it doesn't work.
Problems if maintenance
is not carried out
Insufficient humidifying.
Leaking.
Insufficient humidifying.
Overflowed feed water tank.
Weak fan strength.
Reduced humidifying capacity.
Insufficient humidifying.
Overflowed feed water tank.
(Increased tap water consumption)