TAEC Solar Box
Owner’s Manual
v2.2
11
PROBLEM
POSSIBLE CAUSES
REMARK
No power on the
control panel
Lack of power
Check that there is power at the Solar Box
Check the corresponding circuit breaker is
turned on
Disconnected or
damaged wiring
Check the electric or electronic circuit
Check the electrical protection (RES fuse),
located at the back of controller (display)
Check the cabling
Check that the cable to the control panel
is connected
Low water
temperature
No power to control
panel
See above
Equipment turned off
Press ON/OFF button
Compressor turned off
Turn on the compressor using the
“COMP” button
No power to compressor
or electrical element
Check for errors on the electronic panel,
fuses, and relays
Temperature set point
not set correctly
Adjust the set point temperature
Temperature probe not
correctly located
Check location of probe
Hot water returning to
the cold water circuit
(damaged or incorrectly
installed safety valve)
Close the cold water inflow valve to turn
off the safety group. Open a hot tap.
Wait for 10 minutes and if hot water is
available replace the defective pipe
and/or correct the position of the safety
group.
Clean the safety group filter
Disinfect mode
constantly on
Thermostat of hot water
electrical element set
too low
Set thermostat on hot water cylinder
element to 70°C (greater than disinfect
temperature)
Excessively hot
water
Faulty temperature
gauge
Check for errors on the electronic panel
Faulty Control panel
Problem with control board so
compressor or element constantly on
Low hot water
flow (HP alarm)
No water in hot water
cylinder or Solar Box
Check cylinder and pipework
Loss or blockage of the
hydraulic circuit
Check the state of the hydraulic circuit
Check strainer
Pump air locked
Bleed system using bleed valve to remove
air from pump and heat exchanger
Water leaking
from the safety
valve located
over drain.
Absence of or
incorrectly sized
expansion tank (if the
leak is intermittent)
Installation and/or correct sizing of
expansion tank
Check the piping for damage
3.
Fault finding / Problem solving
