#
Remedy
13
Verify last defrost cycle duration under
Status →Defrost→Last Defr. Time
, and/or force a defrost manually and time it to verify
duration. Low Profile and Center Mount evaporators should not defrost for longer than 30‐35 minutes. Adjust Defrost
Termination Temperature (
Def. Term. Temp
) down as needed, and also adjust the Maximum Defrost Time (
Def. Max Run
Time
) down from the 60 minute default setting if needed.
14
The Drain Temp sensor may be used on Low Profile Freezers as an additional early warning that ice is building up on the drain
pan. To enable this function set
Drain Sensor?
to YES on
Settings →Equipment
, and make sure that a Drain Temp Sensor (part
no. 08219623) is connected to the controller (DRAIN) and secured to the drain pan (carefully securing the sensor wire from
touching the heaters). When a defrost cycle ends, if the Drain Temp does not reach Termination Temp, the controller will
generate the
"Drain Temp < Defrost Termination Temp."
alarm. Verify that the drain pan heater is connected and working
properly, and/or that the sensor is properly placed flat on the drain pan secured with the same nut that is holding the heater
bracket. Verify that drain line is free of obstruction and heat tape is working properly to keep the line warm.
15
If no Drain Temp sensor is installed, make sure Drain Temp sensor is configured to NO under
Settings →Equipment→Drain
Temp?
. If a Drain Temp sensor is meant to be installed, make sure the sensor is reconnected or replaced (part no. 08219623)
16
Go to
Settings →Equipment→Aux Temp?
and make sure it is configured to NO. The Aux Temp sensor input is not used in the
current software version.
Air Defrost units (set to
Cooler
) typically end defrost on maximum time, so in this scenario this notification would be nomal. If a
shorter or longer defrost cycle is desired, the Max Defrost Time can be adjusted under
Settings →Equipment→Def. Max Run
Time
(default is 60 minutes).
Electric Defrost units (set to
Freezer
) typically end defrost when the Evap Temp reading reaches Defrost Termination
Temperature. If an Electric Defrost evaporator is ending defrost on maximum time instead, verify under
Settings→Equipment→Def. Max Run Time
is set to no less than 30 minutes (or is already at the default 60 minutes). If it is still
terminating on max time, verify the Evap Temp sensor and electric heaters by referring to items 10 and 11 in this guide.
Verify that each controller that is intended to work in the group is addressed properly. On each controller display, go to
Settings →Equipment→Group‐Member Cfg.
to set the address. Group 1 Leader will be G1‐L, Group 1 Follower #2 will be G1‐2,
Group 1 Follower #3 will be G1‐3, etc. Same for Groups 2, 3 and 4. Each group will support a maximum of 6 evaporators (1
5 Followers). Make sure that there are no conflicting addresses set between two or more controllers.
Verify that the communication wire used is at least
22 gauge, shielded
. Verify each of the 3 conductors are terminated at each
board on E1, E2 and RT terminals and that polarity is maintained from board terminal to board terminal (a wire landed at E1 on
the first board has to go to E1 on every other board on the daisy chain; same for E2 and RT). Verify that the shielding strands
are connected at every splice and terminated at a ground point on one end of the daisy chain only.
Verify on each controller in the group that
System Enable
is set to YES. Go to
Settings →System Enable
and verify that all the
controllers in the group are set to YES.
Verify software version at each controller on the display by navigating to
Service →So ware Version
. Every controller in one
Group must be running the same software version for the group function to operate properly. If you are having group sync
issues and have one or more boards where the software version does not match the others, please call Customer Support.
Go to
Settings →Date and Time
on each controller board display to set the controller time clock. If you have a Command
Center Display wired to one or more controller boards, the time clock can be set there and it will be simultaneously broadcast to
every controller connected.
If the controller board remains powered off for more than a couple of days, the time clock will have to be reset. Go to
Settings →Date and Time
on each controller board display to set the controller time clock. If you have a Command Center
Display wired to one or more controller boards, the time clock can be set there and it will be simultaneously broadcast to every
controller connected.
If installing Command Center within 150 feet of the nearest EcoNet controller, make sure that the wires from the R and C
terminals at the Command Center mounting bracket are securely connected to the 0V and 16V terminals at the controller.
Make sure the controller is powered on. If Command Center is installed more than 150 feet away from nearest controller, make
sure it is connected to a separate 24VAC or 24VDC power supply. Please refer to the Command Center wiring diagram on Page
13 of the EcoNet Installation Manual.
Inspect the Command Center Display for signs of damage (cracked screen, burn marks on the circuit board/mounting bracket,
broken components). If damaged, replace the Command Center Display. Make sure that the Command Center is installed
indoors, outside of the walk‐in cooler/freezer, and that it does not get wet or dropped.
Time clock on controller may not have been set.
Time clock on controller may have been set at
install, but a prolonged power loss may have reset
it.
Time stamp on the Alarm History is not
accurate.
EcoNet controller may not be addressed properly
to work as part of the group.
EcoNet controller may not be wired properly to
the rest of the group.
One or more controllers in the group may be
manually disabled.
One controller may have a different software
version from the other controllers in the group.
I have multiple evaporators in the same
box working as a group, but one or more
of them are not cooling/operating in sync.
Make sure that Command Center Display is
connected to a power supply.
Command Center Display could be damaged.
Command Center Display screen is blank.
EcoNet Controller generates alarm
"A002
Drain Temp < Defrost Termination
Temp."
(Low Profile FREEZER only).
There may be ice on the drain pan after a defrost
cycle ended; drain line could be blocked.
Evaporator Coil is steaming excessively
during a defrost; water droplets
accumulating on the ceiling (Low Profile
and Center Mount FREEZER units).
Defrost cycle is running too long.
EcoNet Controller generates notification
"T001 Defrost Failure: Max Time Expired"
Problem
Possible Cause
17
Evaporator works on Air Defrost
Evaporator works on Electric Defrost
EcoNet Controller generates alarm "
A104
Drain Temp Thermistor Failure
"
Drain Temp Sensor configured to YES under
Settings and sensor is not connected.
EcoNet Controller generates alarm "
A105
Aux Temp Thermistor Failure
"
Aux Temp Sensor is configured to YES under
Settings and sensor is not connected.
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