SolaSmart™ Plus Installation Guide
Version 1.1 – Mar 2012
Page 28
T
ROUBLE
S
HOOTING
G
UIDE
,
C
ONTINUED
Symptom
Possible Cause
Solution
Hot water stored
drops significantly at
night, yet little or no
draw off by user
System is reverse thermo-siphoning
System is in a high frost area
Tank is losing heat
The non-return method is not effective
or
is malfunctioning. May be
associated with night time pump
activities. Check roof sensor reading
at night to verify.
Discuss non-frost sensitive options
with your energy provider
Install better insulation on hot water
tank
HWC light stays on
too long (more than 6
hours)
Excess water draw off or leak
HWC power not getting to controller
HWC power not getting to element
Element open circuit (blown)
Is HWC circuit drawing expected
current (typ 16 Amps)?
Qualified
personnel only
. If yes verify excess
hot water is not being drawn off
If NO then power is not able to heat
the water to the target ºC
Read tank temperature at controlling
sensor.
If < 50ºC issue will be interrupted
power or a faulty element.
Qualified
personnel only
; Check for tariff /
load control. Check power into the
controller HWC contacts. Check
power comes out of HWC contacts.
Check correct HWC output used.
Check wiring is correct. Check
element is not blown.
If > 50ºC issue will be tank
thermostat. Ensure thermostat is
turned up to max. If this doesn’t work
then thermostat is too inaccurate for
this application.