Install Instructions

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Symptom Look For... Corrective Action
Touchscreen is
off
Power to control
Use electrical meter to measure 115 V (ac) voltage on input power L and N
terminals.
System pump
always on
Display shows Idle
Idle operation requires that the system pump operate continuously while below the
melting temperature setting.
Blue short
Dirt or salt on snow/
ice sensor
The snow/ice sensor requires regular cleaning. Avoid using road salt on the snow
melting slab.
Slab is
above melt
temperature
Slab Target
The slab is heated to the slab target.
System running
with no snow
System is Idling
Idling heats the slab when the temperature falls below the Idle temperature.
System is Melting
During cold weather cut off (CWCO), the system is shut off. If it shuts off during a
melt cycle, the system resumes melting once the outdoor temperature is above
CWCO.
Remaining Run
Time
System manually started.
Slab and Slab
Target
The slab must reach the slab target temperature in order for the system to shut off.
Lower the cold weather cut off (CWCO) or increase the boiler aquastat setting.
Snow on slab
but system did
not start
System is Off
System has been manually stopped and the automatic snow/ice sensor never dried,
thereby preventing the system from automatically starting.
Cannot register
device
Check WiFi signal
strength
May need to move control or router location.
Frequently Asked Questions
Description
SNOW/ICE SENSOR ERROR
The control is unable to properly detect the Snow/Ice Sensor 090 or 094 on terminals 1, 2, 3, 4 and 5. The control can no longer
automatically detect snow or ice, but manual start of the snow melting system is still available.
Check the snow/ice sensor brown, yellow, red and black wires according to the sensor installation manual. It is important to check
any cable splices for loose wiring connections. It may be necessary to replace the sensor. Once the error has been corrected,
the error message automatically clears.
SNOW SENSOR ERROR
The control is unable to properly detect the Snow Sensor 095 on terminals 1, 2, 3, and 4. The control can no longer automatically
detect snow but manual start of the snow melting system is still available.
Check the snow sensor yellow, red and black wires according to the sensor installation manual. It may be necessary to replace
the sensor. Once the error has been corrected, the error message automatically clears.
Frequently Asked Questions