gledhill BOILERMATE CP BMSCP120 Instruction Manual page 15

SERVICING AND MAINTENANCE
Check pump electrical circuits
LED Meaning Diagnosis
Lights green Normal running Pump runs according
PWM input
Blinks quick green Normal stopped Pump in standby
Blinks red/ green Abnormal running mode The pump has stopped
-pump stopped but still due to external failure
functional
Pump restarts by itself
after the fault has
disappeared
Blinks red Pump out of function Pump stopped (blocked)
LED off No power supply No voltage on electronics Pump is not connected to
Check plumbing components
CW In line filter Isolate the CW mains supply at the servicing valve
Open HW taps to relieve the pressure
Undo securing nut ensuring that any remaining water is collected
Remove filter and clean it
The flow regulator can be checked at the same time by removing the upper pipe section.
Thermal store return Isolate both servicing valves
check valve + return
Drain water from the section between the servicing valves
servicing valve
Remove the bottom pipe section
Check for free movement of the check valve incorporated in the body. Remove and replace if the check
valve sticks.
FAULT FINDING
Cause Remedy
Normal operation n/a
n/a
Under voltage U<160 V Check voltage supply
or 195 V <U< 253 V
Over voltage U>253 V
Pump overheating: Check water and
temperature inside motor ambient temperature
too high
Over speed: Ensure that there is no
the pump rotor is driven other external flow (other
by an external flow above pump running) on
the maximum allowed system
value
Over current: Check for leakage
the stator winding is in application on
short circuit due to water application
Overload of motor: Check installation water
friction due to particles quality, clean system if
and/or impeller blocked debris
with debris
Blockage: Check for blockage.
the pumps is fully Turn ON/OFF to reset
blocked due to debris in the pump by unplugging
system the power supply
If the pumps still blinking
Faulty electronic module
red after a power reset
and/or faulty motor
then replace the pump
Check cable connection
power supply
LED is damaged Check if pump is running
Electronics are damaged Replace pump
Page 28
SERVICING AND MAINTENANCE
Page 29
FAULT FINDING