Samsung ASHM070VE Service Manual page 36

Troubleshooting
E X A M P L E
E X A M P L E
• In case of unit A test, push once the PCB switch S/W-A (same for
unit B and C).
- In such a case, the indoor unit of unit A is operated automatically
by the outdoor unit.
- In case the unit A test stops, push once more the switch S/W-A.
<Operation>
1. Once the test is started, the COMP is on and Good (displayed Gd)
or Error (displayed Er) is displayed after 4 minutes.
: If the difference between the temperature of the pipe sensor of
the indoor unit 4 minutes before and now is 5ºC or more is good.
Otherwise, an error occurs.
2. If the result of the test operation is good, the unit is operated in
the test mode for 30 minutes max.
If there is an error, the outdoor unit shall be stopped immediately.
If an error occurs, push switc S/W-A, S/W-B or S/W-C once to
resume from the error status. Restart is them possible.
3. Once the test operation is completed, push switch S/W-A, S/W-B
or S/W-C to finish the test.
4. Once the test is completed, operate the indoor unit normally.
5. Check the operation is normal. Start up is over.
5-4
OUTDOOR UNIT
A : PCB display
B : Red LED
C : PCB switch
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