Panasonic NA-V11FX2 Operating & Installation Instructions Manual page 36

Troubleshooting
Symptoms
Unusual noise
(or vibration)
Power cut
36
… Check
Metal items
z
Anchor bolts (P. 40)
z
Slope or an unstable surface
z
Adjust 4 feet
z
… Check
When the power recovers, operation resumes
z
Breaker
from where it stopped.
Off
(continued)
Points to be checked
On
(P. 40)