SR501 EN Operation Manual
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to avoid the collector tube exploded due to the thermal stress, water filling
function will be stopped compulsively
(“Water Loading” button is unable), and
“E4” displays on the screen. When water temperature drops below 80
o
C
，
this
protection function is deactivated, and water filling function is recovered.
10.3 Memory protection
In case power failure occurs, controller keeps the parameter settings
unchanged.
10.4 Screen protection
When no any press on button for 5 minutes, screen protection is activated
automatically, and then LCD lighting lamp is switched-off. Through press any
button to light LCD lamp again.
10.5 Trouble protection
When temperature sensor’s wiring is interrupted, not connected, controller
switches off the corresponding signal output, and simultaneously error code
displays on the screen to give a warning. When sensor is short circuit, then
“88.8
o
C
” displays on the screen.
10.6 Error code description
Error code
Error description
Display status
E0
Communication fault between
controller
and
sensor
of
temperature and water level
Temperature zone displays
“E0”
E3
Fault of solenoid valve
E3 and clock signal displays
alternatively in every 4 seconds.
E4
Collector tube high temperature
protection
E4 and clock signal displays
alternatively in every 4 seconds.
Temperature fault of sensor of
temperature and water level
Temperature zone displays
“----”
