Grundfos 15 BMQE 05A-110, Руководство по продукту и инструкции

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Instructions
EZ Boost TM System
8.3. EZ Boost BMQE fault finding chart
Fault Possible Cause Remedy
1. The BMQE does not run. a) The GFI or the voltage-operated GFI has
tripped out.
Cut in the circuit breaker.
b) No electricity supply. Contact the electricity supply company.
c) The motor protection has cut off the
electricity supply due to over-load.
Check whether the motor/pump is blocked.
d) The pump/cable is defective. Repair/replace the pump/cable.
e) Over voltage has occurred. Check the electricity supply.
2. The BMQE runs but gives no water. a) The discharge valve is closed. Open the valve.
b) The suction strainer is choked up. Pull the pump out of the sleeve and clean the
strainer.
c) The pump is defective. Pull the pump out of the sleeve and repair/
replace the pump.
3. The BMQE runs at reduced capacity. a) The valves in the discharge pipe are
partly closed/blocked.
Check and clean/replace the valves, if
necessary.
b) The discharge pipe is partly choked
by impurities.
Clean/replace the discharge pipe.
c) The pump is partly choked by impurities. Pull the pump out of the sleeve. Check and
clean or replace the pump, if necessary.
Clean the pipes.
d) The pump is defective. Pull the pump out of the sleeve and repair/
replace the pump.
e) Leakage in the pipe work. Check and repair the pipe work.
f) Under voltage has occurred. Check the electricity supply.
4. Frequent starts and stops. a) The supply voltage is unstable. Check the electricity supply.
b) The motor temperature becomes
too high.
Check the water temperature.
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