SolaSmart™ Plus Installation Guide
Version 1.1 – Mar 2012
Page 27
T
ROUBLE
S
HOOTING
G
UIDE
Symptom
Possible Cause
Solution
No operation, no
lights ON
No power/fault
Check mains outlet.
Press pump button. If pump light
comes on controller is o.k.
Sensor O.K. light OFF
Roof sensor not detected
Check sensor is plugged in
Plug a spare Roof sensor in to test
If test sensor O.K then replace Roof
sensor
Sensor O.K. light
flashing
Inlet or Tank sensor not detected
Replace sensor in either sensor port
until Sensor O.K. light is ON
Pump not running,
while sunny outside.
Pump light ON
Pump damaged or disconnected.
Pump timer has turned pump off
Controller fault
See if pump has become unplugged
Wait one minute for the pump to
restart.
Test controller pump outlet if power is
present. If power present replace the
pump. If no power replace controller
Pump not running,
while sunny outside.
Pump light OFF
System in Topout
Sensor mounting problem
Check display if in Topout. If so then
this is normal.
Check sensor readings. If readings do
not match real water/plumbing
temperatures check sensor is making
good contact with pocket/ surface.
Thermal paste required to make good
thermal conductivity.
Pump is running
continuously
Pump is cavitating
Special Installation
Airlock in pipe
Setting does not match plumbing
used
If pump sounds like stones are
passing through it, the pump may be
cavitating.
Long pump times may be normal for a
variable speed pump or a special
installation
Unplug pump for 1 minute. If system
behaves normally after plugging back
in then an airlock was present.
If return pipe temperature losses are
greater than ‘pump off’ value system
may lock on for extended periods of
time. Insulate return pipe better or
change pump off value.
Pump only comes ON
when Roof sensor is
above 100ºC
Advanced Topout method
Normal operation for Advanced
Topout.
Pump only comes ON
for few seconds every
few minutes
T2 Advanced Topout and recovery
method in action
Normal operation for Advanced
Topout and Recovery. This prevents
banging in tank (steam implosions)
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