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Arctic Installation and Operation Manual
INDICATION
Display Completely
Dark Fun off, LWCO
lights off, no green
power light on
Control.
Display Completely
Dar, Fun running.
Blinking Green power
light on Control.
Blank Screen with
"Reading" shown.
Communication Error
2.
Communication Error
3.
Thermal Solutions, 1175 Manheim Pike, Lancaster, PA 17601 Web:
Phone: 717-239-7642 Fax: 877-501-5212 Email:
40
Table 16: General Troubleshooting
POSSIBLE CAUSE
No 120 Vac Power at
Boiler due to blown
high voltage fuse or
circuit breaker trip.
No 120 Vac Power at
Control; No 24 Vdc to
Display.
Control Fault.
Display lost
communication with
Control.
Un-configured control,
or control has a
memory failure.
Communication Fault.
1. Check breaker and wiring between breaker
CORRECTIVE ACTION
and boiler.
2. Replace blown high voltage fuse.
3. Reset tripped breaker.
4. Check loose 120 Vac connection wiring
between boiler J-Box and transformer or 24
Vdc power supply.
5. Check for loose 24 Vac connection wiring
between transformer and Control.
6. Check blown low voltage fuse: Replace in
necessary.
7. Check for bad transformer or bad 24 Vdc
power supply: Replace if necessary.
The green light is connected to internal power
supply. The power supply is repeatedly starting
and stopping (not normal) making the light
flash. The microprocessors are not running.
Try disconnecting all terminals except 24 Vac
to power the control. The green light should
be steady. If it is not, then the control is
defective. If steady, start plugging in all the
connectors while watching the green light.
When the faulty wiring reconnected, green light
will begin to flash.
Failure to establish Communication upon boot-
up once you establish communication, reboot
display to read controller and setup display
properly.
The display-write attempt has failed. The
controller is un-configured or has a memory
failure. Lockout 20 Safety Data Verification
will also be displayed. Replace Control.
1. Check for loose or defective display harness,
Display has lost communication with controller.
defective display or defective control.
2. Refer to Concert Boiler Control manual for
more details.
www.thermalsolutions.com
sales@thermalsolutions.com
Form: 2435
Revision: 8
Date: 9-19-2016
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