User Manual

PowerOptimal Elon® 100 User Manual
Version date: 2022/06/28
Page 16 of 24
Version number: 2.15
© PowerOptimal (Pty) Ltd 2022. The content of this document is confidential and all rights to the intellectual property and/or information contained herein remain vested
in PowerOptimal, except if otherwise agreed in writing.
Below you can find the same information with some further detail in table format. If you cannot resolve the problem using the diagram or table, please
contact your installer.
Issue
Possible causes
What to do
Water temperature too
low
a. High hot water usage levels
b. Cloudy or rainy day
c. Dirty solar modules
d. Mains circuit breaker has tripped
e. Thermostat connection or thermostat
defective
a. Turn control dial clockwise (2.3) OR
Reduce hot water use (2.5) OR
Add additional solar modules to your solar installation (first consult
with your installer)
b. See a. above
c. Inspect solar modules. If they are soiled, clean them with water and
sponge (4.1)
d. Check mains circuit breaker
e. Call electrician for inspection
Water temperature
remains low after turning
dial to "MAINS ONLY".
(Note: the red LED light
should start flashing once
dial is turned to “MAINS
ONLY”, indicating that the
water is being heated.)
a. Sufficient time has not been provided for
water to be heated after dial has been turned
b. It is a cloudy day and there is a mains power
failure
c. There is an electrical fault or the Elon® 100 is
defective
d. Thermostat connection or thermostat or
element defective
a. Wait for 2 hours after turning the dial to “MAINS ONLY”.
b. You will have to wait until either the solar or grid power returns to
heat the water
c. Check if the mains light on the Elon® 100 controller starts flashing
after you turn the dial to "MAINS ONLY". If it does not and your water
remains cold, call your electrician to inspect the installation for any
electrical fault.
d. Call electrician for inspection
Water temperature too
high
a. Thermostat temperature setting is high and
you are using hot water from a tap close to
the geyser
b. Thermostat connection or thermostat
defective
a. Reduce thermostat temperature set point OR
Open the cold water tap first
OR
Install a thermostatic mixing valve
b. Call electrician for inspection.
Hot water production is
lower than it used to be
a. Dirty solar modules
b. Trees / plants have grown and are causing
shaded areas on solar modules
c. Damage to solar modules
a. Inspect solar modules. If they are soiled, clean them with water and
sponge (4.1)
b. Trim trees and plants
c. Installer or electrician should test solar array power production in
sunny conditions and compare with specifications. If one or more
modules are damaged and they are still under warranty, contact
manufacturer for replacement