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Excessive vibration
from pump.
Pump is noisy.
Pump leaks.
8.1 Dry Run Protection:
This pump is fitted with a safety control circuit, which will detect the following fault
condition:
Dry running caused by water starvation to the pump.
Should the pump run out of water it will stop as part of a "protective logic sequence",
detailed below.
The fault should be rectified before re-starting the pump. Check that there is sufficient
water supply to the pump and also ensure that all terminal fitting outlets are closed.
8.2 Protective Logic Sequence:
If water starvation occurs and the power supply to the pump remains uninterrupted,
the pump controller will perform the following protective sequence.
1. If the pump detects water starvation, it will stop operation.
2. The pump will remain in the off condition for a period of 5 minutes.
3. The pump will then re-start and if the water starvation condition remains
present, the pump will stop operation.
4. The pump will remain in the off condition for a period of 5 minutes.
5. The pump will then re-start and if the water starvation condition remains
present, the pump will stop operation.
6. The pump will remain in the off condition for a period of 5 minutes.
Pump is not on a stable platform.
Impeller damage.
Water inlet pipe is too small.
Bearing damage.
Impeller damaged.
Pipe work not fitted correctly.
Damaged rotary seal.
Relocate pump.
Contact Stuart Turner.
Check inlet pipe size.
Contact Stuart Turner.
Contact Stuart Turner.
Ensure pipework into and out of
the pump is secured sufficiently.
Contact Stuart Turner.
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Questions and answers
The pump is making a loud humming noise probably best described as vibration noise. The water pressure in the house is still normal. I tried resetting the pump but the noise came straight back instantly.
A loud humming or vibration noise in a Stuart Turner MAINSBOOST VariQ pump could be caused by the pump being mounted in a way that amplifies noise through loose panels or pipework. Care must be taken during installation to ensure secure mounting to avoid such noise issues.
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is it normal that variq pump in my home goes off frequently if no taps are on please
No, it is not normal. If the Stuart Turner MAINSBOOST VariQ pump turns off frequently when no taps are on, it may indicate a leak in the system, debris under the non-return valve sealing face, or improper pipework installation. Running the pump at full flow to flush debris or checking and replacing the non-return valve may help resolve the issue.
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Pump keeps making knocking noise approx every 30 sec when not in use.