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York stellar plus blower motor very noisy on start-up of blower motor. A sort of pulsing humming sound with pulse increasing in frequency and then dissipating as fan reaches full rpm. what is the cause of this?

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Most likely a weak start capacitor.

Posted on Sep 30, 2009


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Posted on Jan 02, 2017


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Blower motor control module would be a good guess , but is still just a guess . Testing the electrical circuit would need to be done to know for sure . Do you know how to test electronic's , automotive electrical circuits ?

HVAC Blower Controls Circuit Description
The blower motor is controlled by the blower control module. The blower control module receives the requested blower speed from the heater and A/C control in the form of a 5 volt pulse modulated reference signal. When low speed is requested by the heater and A/C control, the pulse width is reduced. When high blower speed is requested, the pulse width is increased. An open circuit, short to ground or short to battery on the blower speed input circuit of the blower control module will disrupt the pulse modulated reference signal. If the blower control module does not receive the pulse modulated signal, the blower motor will not operate. The blower control module receives power from the rear fuse block. The blower control module also provides a ground for the blower motor. A separate blower motor flange ground is used to limit radio frequency interference.

HVAC Blower Motor Circuit

Mar 24, 2017 | Pontiac Cars & Trucks

1 Answer

Draft inducing blower motor for york stellar plus

Check the relay for that motor. Follow the wires back to locate the relay. If the relay clicks when you advance the thermostat then check the relay contacts with a multimeter. If there is continuity and a low resistance value on the contacts then look at the motor itself. There is a hi limit safety klixon switch that may be holding voltage from reaching the motor too. The wiring diagram should be on or inside an access panel.

Dec 31, 2014 | York Tools & Hardware - Others

1 Answer

I have a Karcher K3.540 pressure washer. Won't take up detergent and motor pulses ever second if vari-lance increased towards maximim. Motor runs ok at lower pressure but can take 1min to start wh

This fault is within the control head, under the detergent valve is a small spring loaded valve that acts to induce the detergent, this will have failed, the shaft of the component breaks off the disk base leaving a small hole in the centre of the disk. This is enough to allow pressure past the component. The machine will pulse when operated and will not induce the detergent. I've looked everywhere to find this part as I have a karcher with the same fault.

Jan 22, 2012 | Karcher Garden

1 Answer

I have a small Cuisinart food processor and I cannot figure out how to turn it on. It has two levers low and high. I have it plugged in and the lid on? Please help. Fiona Slattery 858-752-8591


Your PowerBlend Duet™ comes with a food processor button. This button is the perfect speed for all your food processing tasks. Always use this speed when using the food processor. You may also use the Pulse button with this function for pulse-chopping.
To use your food processor, make sure that the bowl is assembled properly and the blade or slicing/shredding disc and the cover are locked into place.
When you use the control panel, the LED will light next to each button you press.
Press the On button. For continuous operation, press the Food Processor button. Motor will start if you have followed assembly instructions.
To turn motor off, press the Food Processor button again or the Off button.
For on/off operation, called pulse-chopping or pulsing, press the On button, press the Pulse button, and then press and release the
Food Processor button the desired number of times. Motor runs as long as you hold the Food Processor button down. The motor stops when you release control switch. Try it a few times.
You control the duration and frequency of pulses by the length of time you hold the Food Processor button down and the rate at which you press it. Pulses should be short bursts. Allow enough time between pulses to let food in work bowl fall to bottom.
Always use the Food Processor button for pulse/chopping. Never turn cover back and forth to start and stop processor.

You can download manual from the below link


Sep 12, 2009 | Cuisinart Food Processors

2 Answers

I have a Coleman Powermate Pulse 1750 generator. The engine runs fine but lately I've noticed I'm only getting approx. 105 volts. Any suggestions.

Engine speed is low, does your meter read frequency? Set for 60 Hz @ speed. I doubt there is a voltage regulator adjustment. This may help

Jun 25, 2009 | Coleman Powermate Premium Plus 6250W...

1 Answer

Malfunctioning speedometer

The odometer circuit drive and the speedometer are controlled by the CPU built-in the gauge assembly. The CPU receives pulses from the PCM. The pulse rate increases as the car accelerates. The frequency and duration of these input pulses are measured by the CPU.

Jun 19, 2008 | 2004 Honda Odyssey

1 Answer

Dishwasher keeps stoping

Favorite for bosch is the water inlet modual which monitors the water flow in could be faulty, If incorrect pulses take place the motor wont proceed. Otherwise listen for a hum after water stops filling. If there is a hum, the main wash pump is jambed and has to be sorted out.

Jun 08, 2008 | Bosch 24 in. SGV43A03 Built-In Dishwasher

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