Maintenance; Disposal; Troubleshooting - Mhouse GDS Installation Instructions And Warnings

7 Maintenance

As the control unit is electronic, it needs no particular maintenance. Peri-
odically check, however, at least twice a year, that the whole system is in
perfect working order as indicated in the Testing chapter.

7.1 Disposal

This product is made of various types of materials, some of which can be
recycled: aluminium, plastic, electric cables; while others must be dis-
posed of (boards and electronic components). Enquire about the recy-
cling or disposal systems available in compliance regulations locally in
force.

8 Troubleshooting

This section will help fitters to solve some of the most common problems
that may arise during installation.
The OK Led doesn't light up.
• Make sure that the power cord is properly plugged into the mains out-
let.
• Check that there is 24Vac between terminals 3 and 4 of the terminal
board.
• Check that the fuse is in working order. If it has blown, replace it with
2A rapid fuse.
The manoeuvre does not start.
• Check that the "Stop" input is active, that is, voltage between termi-
nals 3 and 6 on the terminal board is equal to approx. 24Vac. If volt-
age does not correspond, check that the connection to the "Stop"
input is made with a device featuring a Normally Closed contact.
• Check that the photocells are connected to the "Photo" input as
shown in Fig. 22, if the "Photo-test" is deactivated, or as shown in Fig.
23, if "Photo-test" is activated.
• Check that the voltage between terminals 3 and 7 on the terminal
board is equal to approx. 24Vac when the photocells cut in. If the volt-
age does not correspond, check the photocells work correctly by fol-
lowing the relative instructions.
12 Instructions GDS
Some electronic components may contain polluting substances;
do not pollute the environment.
The manoeuvre does not stop when the "Stop" input cuts in.
• Check if the connection to the "Stop" input is made with a normally
closed contact, as indicated in the "Electrical diagram" in paragraph
3.4.1. If it is connected correctly, check that the OK Led flashes rapid-
ly twice when the contact is open.
The manoeuvre starts but it is immediately followed by a reverse run
• The level of current sensitivity selected is too low to raise the door.
Select a higher level of force as described in paragraph 5.2 "Program-
ming current sensitivity".
When the manoeuvre begins, the courtesy light switches on but
then it switches off immediately and the manoeuvre does not
continue.
• The "Photo-test" mode is activated and the "Photo-test" was unsuc-
cessful. Check that the photocells are connected as shown in Fig. 23.
If the connection is correct, check the photocells work correctly by fol-
lowing the relative instructions.
The flashing light doesn't work.
• Check that voltage between terminals 1 and 2 on the terminal board is
equal to approx. 24Vac during the manoeuvre. If the voltage corre-
sponds, the problem is caused by the flashing light that must be
checked by following the relative instructions.