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Part # M017879450000 REV. July 1, 2011
ECOTECH EZ
TM
Variable Speed Motor/Control
fault conditions
The user interface advises when certain fault conditions
occur. These fault conditions may be resolved at the
equipment pad.
Low Voltage trip
The voltage to the motor/control conduit box terminals
must be 230 volts AC (Alternating Current), +/- 10% or
207-253 volts AC, 60 Hertz. A sustained input voltage
significantly below 207 volts AC will cause a Low Voltage
Trip to occur. This trip will occur if 115 volts AC is applied
to the conduit box terminals instead of the required 230
volts AC. When this Low Voltage Trip occurs, the Call
for Service icon, the Attention icon and the Low Voltage
icon will illuminate on the LCD screen. The pump will
also shut down and automatically restart when operating
conditions are within specifications. The pump will
begin ramping up to speed slowly until reaching the
percentage flow or speed for which the motor/control
was running prior to the fault occurring. When this fault
occurs, this could indicate a problem with the input line
voltage or wiring to the unit.
NOTICE
!
If this fault continues to occur even after
verifying that the input line voltage is between 207-253
volts AC, then call your pool professional or a qualified
electrician for service.
Blocked pump trip
The Blocked Pump fault is an indication of a mechanical
obstruction causing the motor shaft not to turn. When
this occurs, the Blocked Pump icon and the Attention
icon will illuminate on the LCD screen. The pump will
shut down. This is a self-resettable fault, meaning
the motor/control will attempt to restart by ramping to
the percentage flow for which the motor/control was
running prior to the fault. This reset will occur up to five
times after which the user must press the Exit button to
recheck the system to determine if the Blocked Pump
condition still exists. If not, the pump will begin ramping
up to speed slowly until reaching the percentage flow
or speed for which the motor/control was running prior
to the fault occurring. If the condition still exists, the
fault will occur again.
NOTICE
!
If the Exit button is pressed a second
time and the Blocked Pump condition still exists, the
Call for Service icon will illuminate.
High amps trip
The High Amps Trip is an indication of a possible
motor/control overload. When this occurs, the High
Amps icon and the Attention icon will illuminate on
the LCD screen. The pump will shut down. This is
not a self-resettable fault and the user must press
the Exit button to recheck the system to determine if
the High Amps condition still exists. If not, the pump
will begin ramping up to speed slowly until reaching
the percentage flow or speed for which the motor/
control was running prior to the fault occurring. If
the condition still exists, the fault will occur again.
NOTICE
!
If the Exit button is pressed a second
time and the High Amps condition still exists, the Call
for Service icon will illuminate.
temp trip fault
The Temp Trip is an indication of an excessive operating
temperature that could damage the motor control.
When this occurs, the Temp Trip and Attention icon will
illuminate and the pump will shut down. After 5 minutes,
the motor will restart automatically, and if the temperature
has dropped to a safe value, will begin ramping up
to speed slowly until reaching the percentage flow or
speed the motor/control was running prior to the fault
occurring. During restart, if the operating temperature
is still excessive, the unit will shut down again for
another 5 minutes. When this fault occurs, this could
indicate inadequate ventilation around the product.
Make sure there is proper ventilation around the product
by removing any leaves or other items which may be
restricting the air flow around the motor and control.
NOTICE
!
If it trip persists, call your pool
professional or a qualified electrician for service.
all Internal faults
Internal faults are failure conditions that do not have an
icon in the LCD display. These faults usually result in
control failure, but may be cleared by cycling the main
power. If the Attention and the Call for Service icons
illuminate and the pump has stopped, turn off the power
for 10 minutes at the main circuit breaker then turn the
power back on to reset the system. If this step does not
clear the fault, contact your pool professional for service.
315612_MNJ26_VAR SPD_nonSRVS.indd 24
7/19/11 8:01 AM
