Pentair NOCCH, Manual, Page: 31 / 128

27
GB
ENTE R
By pressing key (20)
By pressing key (17) The green LED (6) lit and the system begins to function automatically
The system returns to MANUAL WORKING - red LED lit
MAN
M
A
AU T
FAILURES
CHAPTER 8
In case of system failure , the following messages can be displayed on the control board:
Explanation of messages (see fig.6)
1. LACK OF WATER IN WITHDRAWAL TANK
• The level control signals the lack of
water in the withdrawal tank, or low
pressure in the feed duct(aqueduct)
• At the same time the red LED -
BLOCKAGE LEVEL shall be lit
• The same thing occurs in case of false
contacts or absence of level control
if the relative terminal have not been
short-circuited
The inverter is blocked. The reason of the blockage is indicated on inverter display whose manual gives detail of the position
intervened. If the reason is accidental:
2. BLOCKAGE INVERTER
• Momentary overcharge of the motor
pump (example excessive request of
water), or electric too high or too low
voltage, by pushing the RESET key
situated on the inverter keyboard, the
system be reset
• Otherwise cut the voltage off the
switchboard for a few seconds and
connect it again
• In case of failure, repeat the
operation a second time
• If the blockage persists, it is possible
to disable the inverter following the
instructions reported in the following
chapter
PROGR. MENU
EXIT
11
STOP FOR
LOW WATER LEVEL
A1
SYSTEM INVERTER
BLOCKED - RESET
A2
TEMP. P 3 4
Bar 04.6
A3