SOLAR CONTROLLER AND SOLAR MONITOR
2007 October 3 SK6203 Rev B
DIAGNOSTIC FEATURES OF THE SOLAR CONTROLLER
The operational modes are:
Flashes Operational Modes
solid green
(remains on) Standby mode
green
slow pulse
Standby mode
(power on for less than 48 hours)
green
rapid pulse Circulating water through collectors
3 x green Circulating water through collectors
(power on for less than 48 hours)
no green
(remains off) Power outage or call for service
Flashes Fault Modes
red
rapid pulse
Temperature rise across collector greater than 40°C
(circulator at full speed)
3 x red Hot sensor in collector – short circuit
4 x red Hot sensor in collector – open circuit
5 x red Cold sensor –short circuit
6 x red Cold sensor – open circuit
If the power supply to the solar control unit is on and the green LED is off or the
red LED is flashing, this indicates there may be a fault with the water heater.
The red LED may emit up to six flashes in each series of flashes.
Note: During periods of high solar radiation and if the circulator activates after
having been off, such as during start up, it is possible the red LED may emit a
rapid pulse for a period of up to ten (10) minutes. This does not indicate a fault.
Refer to “Commissioning” on page 2.
If the red LED continues to emit a rapid pulse for longer than ten (10) minutes,
or emits a series of flashes, then count the number of flashes and phone your
nearest Service Department or Accredited Service Agent to arrange for an
inspection.