AO Smith Intertherm Furnace Motor 1/8hp 1050 RPM 2-Speed 115 volts 90 "pump speed" Questions

speed, you can hear the pump speeding up then slowing down. Any advise on why this is happening? Do filters need cleaning? Regards Chris The pump and the filters need cleaning to put it back to normal

speed Controller on the submersible pump. My question is what effect does a variable speed controller have on the life of a pump compared to the traditional on - off pressure switch. It all depends if

I have a 2.5h 2 speed motor with 3 wires Black, Red, Blue & Green (Ground) My question is how do know what ones are L1 & L2 and N? That model number is listed as a 230v motor (no neutral) The ...

speed pump BN55 part 7 -186364 -02. The pump runs well on low speed but as it is switched to high speed it strains for one or two seconds and then the control panel cuts everything for aprox. one hour

pump where there are two 11/16 hex plugs... one has a filter behind it, and the other (closest one to the valve block) is where the drop speed screw is located.. Be sure to do this adjustment with the

...pump speed up and slow down at all? If it does not than it will be a programming issue and will require an r100 remote to program properly. If it does change speeds ( you should be able to hear the ...

If voltage is applied across the hi speed and the low speed terminals at the same time what will happen with the motor Probably burn out one of the speed's windings.

grundfos circ pump on e-classic central boiler is running but overheating. Any ideas ? Are the valves fully open both sides of it? is there a blockage in the pipework? perhaps needs flushing out...

be here for a week and I hate to loose chemical balance. Thanks, Joe Can you plug the pump in directly to power and run it full speed? As this is an old problem, I'm sure you have already fixed it