Heatrae Sadia Amptec 95 022 001 C-400 Fitting Instructions And User Manual page 24

ALARM TRIPS DURING
SELF CHECKING BUT NOT
INSTANTLY
FIGURE EIGHTEEN: ALARM TWO
ALARM TRIPS AFTER A
FEW MINUTES OF OPERATION
FIGURE NINETEEN: ALARM THREE
OCCASIONAL TRIPPING
FIGURE TWENTY: ALARM FOUR
24
YES
IS THE PUMP
RUNNING
NO
IS THE
YES
PUMP NEON
ILLUMINATED
NO
YES
TRIPPING
DAILY
NO
THERE IS NO WATER IN THE SYSTEM.
SWITCH OFF IMMEDIATELY.
CHECK AND FILL BEFORE RESTARTING.
CHECK FOR A RESTRICTION IN THE FLOW.
CHECK THE BYPASS, CHECK THE SERVICE
AND RADIATOR VALVES.
CHECK FOR AIR IN THE SYSTEM.
CHECK AND OPEN SERVICE VALVES.
CHECK AND REPLACE THE PUMP.
IF THE PUMP NEON ON THE PCB DOES NOT
ILLUMINATE WHEN THE CALL IS ILLUMINATED
REPLACE THE CONTROL PCB.
CHECK FLOW AND PRESSURE.
CHECK FOR TEMPORARY RESTRICTIONS IN FLOW.
CHECK CONNECTIONS ON THERMOSTATIC SWITCH
CONN3.
CHANGE CONTROL PCB.
CHECK FLOW AND PRESSURE.
CHECK FOR TEMPORARY RESTRICTIONS IN FLOW.
CHECK CONNECTIONS ON THERMOSTATIC SWITCH
CONN3.
RESET.