Troubleshooting - Zanussi ZS12V70CCHI Service Manual

8. TROUBLESHOOTING

Important Notes For Zanussi Inverter Products
TEST FUNCTIONS (All products with a VEL board)
There is only one test function on Vestel electronic boards. With this control unit, robustness of the components on the indoor unit
can be checked. The process is as follows:
1. Disconnect signal cable no.5 going from the indoor unit terminal to the outdoor unit.
2. Bridge to the clips no. 2 and 5 (neutral and signal) in the terminal with an appropriate cable.
3. Press the force start button to energize the product.
After these procedures have been completed, the indoor unit will carry out the following steps in order;
1. Horizontal fin will be completely opened.
2. Ionizer will be switched on.
3. Indoor unit fan will reach maximum speed.
4. Display will count down from "
5. All LEDs will become on at the same time and go out one by one. (Products with LED display)
6. Error will be shown, if any. "
error code.)
7. Display will be darkened 50 seconds after the seven segment becomes "
8. If there is no error in the air conditioner at the end of the test,
Disconnect the signal cable on the
indoor unit terminal.
Device will switch to self-testing. It will
continue to count from 88 to 00.
NOTE: If there is no error at the end of self-testing on 2020 products, display will shows"
NOTE: Any procedure carried out by only pressing the start button without bridging as a result of the procedure above is a faulty
procedure and will result in an ER-06 communication error. Please disconnect the signal cable in the terminal, bridge the neutral and
signal cables with an appropriate cable and perform self testing.
" to " ," decreasing "11" each time.
88 00
, etc." (If there is an error, interventions will be performed on the indoor unit according to the
E6 E4
Bridge the cables 2 and 5 together with an
appropriate cable.
Display lights will become on and go out one
by one.
" or as soon as the on/off button is pressed.
00
00
will be displayed.
Energize the air conditioner by pressing
the on/off button on the indoor unit
board.
."
00
27