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High speed 6wire table fan coil winding diagram

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Need a wiring diagram of the 2 wires from the temp sending unit that controls the temp gauge and cooling fans on a 99 grand am gt. Need to see where they go They disappear behind the engine


The PCM regulates voltage to the coolant fan relays, which operate the fans. Refer to Engine Controls.

Engine Cooling Fan Description - Electric
The electric cooling fans are used to lower the temperature of the engine coolant flowing through the radiator. They are also used to cool the refrigerant (R-134a) flowing through the A/C condenser.
Operation
The electric cooling fan operates when the engine cooling temperature exceeds a certain value. The cooling fan on this engine is controlled by the PCM. The cooling fan has one speed. The PCM turns the cooling fan ON by grounding the coil of the cooling fan relay when certain conditions are met. When the A/C is requested, the cooling fan will also be turned ON.
Power for the cooling fan motors are supplied through Cool Fan #1 and Cool Fan #2 relays. The cooling fan relays are energized when current flows from the fuses in the Cell 23: Cooling Fan Controls , and through the relay coils to ground through the PCM. The Low Speed fans control circuit is grounded for low speed fans operation. During low speed fans operation, both fans run at a slow speed. The High Speed fans control circuit is grounded for high speed operation. During high speed fans operation, both fans run at high speed.
Important: When certain Diagnostic Trouble Codes (DTCs) are present, the PCM may command the cooling fans to run all the time. It is important to perform Powertrain On Board Diagnostic (OBD) System Check prior to diagnosing the engine cooling fans.
If a problem that involves the low speed cooling fan relay control circuit exists, DTC P0480 should set. If the problem affects the high speed cooling fan relay control circuit, DTC P0481 should set. A problem with the ECT sensor should set DTC P0117, P0118, P1114, or P1115. Any of these DTCs will affect cooling fan operation and should be diagnosed before using the Cooling Fan Diagnosis tables. The Cooling Fan Diagnosis tables should be used to diagnose the PCM controlled cooling fans only, if a DTC has not set.

The engine coolant temperature (ECT) sensor (3) is a thermistor, a resistor which changes value based on temperature, mounted in the engine coolant stream. Low coolant temperature produces a high resistance (100,000 ohms at -40°C) (-40°F), while high temperature causes low resistance (70 ohms at 130°C) (266°F).
The PCM supplies a 5 volt signal to the ECT sensor through a resistor in the PCM and monitors the terminal voltage. Since this forms a series circuit to ground through the ECT sensor, high sensor resistance (low temperature) will result in high PCM terminal voltage. When the resistance of the ECT sensor is low (high temperature), the terminal voltage will be drawn lower. This terminal voltage indicates engine coolant temperature to the PCM.
A hard fault in the ECT sensor circuit should set either a DTC P0117 or P0118. Remember, these DTCs indicate a malfunction in the engine coolant temperature circuit, so proper use of the DTC table may lead to either repairing a wiring problem or replacing the sensor, to properly repair a problem.

The engine coolant sensor is an input to the PCM , Two wire's both go to the PCM .An the PCM turns on the cooling fans !

DTC P0480 Cooling Fan Relay 1 Control Circuit
DTC P0481Cooling Fan Relay 2 Control Circuit
The Body Control Module (BCM) request the cooling fans. The BCM sends a Class 2 message to the PCM in order to enable the fans based on various inputs. Thebattery voltage travels to all three cooling fan relay coils. The PCM enables cooling fan relay #1 by providing the ground path. The PCM enables cooling fan relays #2 and mode control together by providing a ground path. The left and right cooling fans are connected in series. This will enable both fans on low speed when the fan #1 relay is energized. When all three fan relays are energized, both fans will operate at high speed. The high speed is possible because the fan relays are wired in a parallel circuit. When the PCM detects that certain DTCs are set, the PCM will enable the cooling fans.
The PCM will enable the engine cooling fans when certain Diagnostic Trouble Codes are set.

Important: A short to ground will cause an open fuse(s). Before performing this diagnostic procedure, inspect the fuse(s) for an open.
1
Did you perform the Instrument Cluster System Check?
--
Go to Step 2
Go to Instrument Cluster System Check
2
Turn the ignition switch to the ON position.
With the scan tool select Instrument Panel Cluster, Special Functions, Instrument Panel Cluster (IPC) gauges.
Perform the Coolant Gauge Sweep Test.
Does the coolant temperature gauge complete a full sweep when commanded?
--
Go to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls
Go to Step 3
3
Replace the instrument cluster. Refer to Instrument Cluster Replacement .
Did you complete the repair?
--
Go to Instrument Cluster System Check
--

Your best bet would be to take your vehicle to a qualified repair shop that knows how the system works . An has the tools to diagnose the problem .

Nov 13, 2016 | 1999 Pontiac Grand Am GT

1 Answer

Table fan winding&connection daigram


  • I have a Bionaire brand table electric fan.
    • It has a 3 speed fan motor.
    • The electric motor is a BM-122 Decomin brand 3 speed motor.
      • There are 6 wires:
        • Red wire.
        • Black wire.
        • White wire.
        • Yellow wire.
        • Gray wire.
        • Blue wire.
          • The motor has a 4mu 250volt capacitor.
  • This fan has an oscillating grill with independent sync motor, and timer circuit.
  • Something was wrong with the solid state circuitry (everything worked but the motor!), but a quick test of the motor indicated it does work.
  • The motor uses a start and run capacitor.
  • I decided to change controls to a simple mechanical switch and fore go for now anything beyond 3 speeds.
  • The printed circuit board shows the following connections:
    • Black wire
    • Blue wire
    • Yellow wire
      • Are respective for the:
        • High fan motor speed
        • Medium fan motor speed
        • Low fan motor speed
  • I think the gray wire goes out to the oscillator motor.
    • The Red wire is marked as Line, for the power source.
  • All wires are in continuity with each other EXCEPT RED is not with any other wire. How to Verify Fan Motor Wiring Connections
    • Checking the Motor and Capacitor Connections
    • Double check your connections using the fan wiring diagrams.
    • You should see that there is a separate motor winding for high speed.
      • The concern is that there is a capacitor for the motor.
      • So I'm thinking that the motor may have to start with the slower speeds first.
      • and not start in the high speed because the motor or capacitor has not been designed for that type of operation.

Sep 29, 2016 | Dryers

1 Answer

Cooling fan motor gets hot when running high speed why


Check the bearings. If the friction is high the fan will not run at rated speed. When it runs slower it uses more current and gets hotter...

Disassemble, clean and lubricate to make sure fan runs full blast and does not burn out.

Or if the fan has two windings, one for starting and one for running it is possible that the high speed run winding has some shorts in it resulting in more current and more heat.

Oct 13, 2015 | Cars & Trucks

1 Answer

My ac is not working I have a Chevy Tahoe 2005 the fans won't turn on either .


Hi Maria , The A/C system wouldn't keep the fans from running but none working cooling fans will keep the A/C from working ! This is a fairly complex system if your not familiar with this sort of thing ! I will add the description from the factory service manual.
Cooling Fan Control - Two Fan System
The engine cooling fan system consists of 2 electrical cooling fans and 3 fan relays. The relays are arranged in a series/parallel configuration that allows the powertrain control module (PCM) to operate both fans together at low or high speeds. The cooling fans and fan relays receive battery positive voltage from the underhood fuse block.
During low speed operation, the PCM supplies the ground path for the low speed fan relay through the low speed cooling fan relay control circuit. This energizes the low speed fan relay coil, closes the relay contacts, and supplies battery positive voltage from the low fan fuse through the cooling fan motor supply voltage circuit to the left cooling fan. The ground path for the left cooling fan is through the cooling fan s/p relay and the right cooling fan. The result is a series circuit with both fans running at low speed.
During high speed operation the PCM supplies the ground path for the low speed fan relay through the low speed cooling fan relay control circuit. After a 3 second delay, the PCM supplies a ground path for the high speed fan relay and the cooling fan s/p relay through the high speed cooling fan relay control circuit. This energizes the cooling fan s/p relay coil, closes the relay contacts, and provides a ground path for the left cooling fan. At the same time the high speed fan relay coil is energized closing the relay contacts and provides battery positive voltage from the high fan fuse on the cooling fan motor supply voltage circuit to the right cooling fan. During high speed fan operation, both engine cooling fans have there own ground path. The result is a parallel circuit with both fans running at high speed.
Do you have a check engine light lit ? The thing to do would have it check at the dealer or a ASE certified repair facility ! They could hook up a advanced scan tool an diagnose fairly quick ! Or you could find a wiring diagram an try testing with a volt meter yourself ! But watch yourself so you don't short out the PCM - engine computer !

May 01, 2015 | AC Cars & Trucks

1 Answer

NEED TO WIRE A OIL FURNACE FAN FOR LOW SPEED IN HEAT AND HIGH SPEED IN COOL


Okay, I've got an answer for you.

If you get a Fan Control Relay that is DPDT, I think you can wire the Low Speed of a two-speed motor to the first N.O. contact, for Heat.

When the Relay trips, the N.O. contact will close, and the fan will run on low.

If it's a two-speed fan, these fans have two windings, the first for low, the second for medium, and both for High.

Wire both windings to the N.C. contact on the second half of the relay.

That way when the temperature drops below your setpoint, both fan windings will be energized and the fan will go nuts.

Of course, this means the fan will NEVER shut off.

And I still don't know why you need high speed in the Cool setting, when your thermostat isn't kicking the Relay.

Oct 10, 2012 | Honeywell R8285B1038 40 VA Fan Center with...

1 Answer

How many watt it have?


    Features and Benefits:
  • Powerful 3 speed turbo fan for fast focused cooling power or enhanced air circulation
  • High performance blades rotate for maximum air velocity through the wind tunnel turbo grill
  • Pivoting head can be adjusted in a 90 degree arc for varied air distribution
  • Versatile design makes this fan great for use on desk and table tops
  • Wall mounts with separate purchase of hardware
  • Equipped with a carrying handle for transport
  • Dimensions and Weight:
  • Size: 6.33" x 11.375" x 11.125"
  • Weight: 3.5 lbs.
    Power 50W @ 110V
    Power 60W @ 220V

Feb 14, 2011 | Honeywell HT-800 Table Fan

2 Answers

What controls the speed of a range hood fan? , only when i push the hi button or the low speed button, the hi speed button only works. its a old model built in 1960 , can't find the model number ...


You will need to check inside the button contacts to identify if the control of current is by a series resistor or by the coil winding.
Since the high speed is working it is possible that the series resistor coil is open.So check for loss of contact continuity in the switch, if not you can use the present model of electronic fan controllers to give you a variable fan control. This can be connected to the main hi speed connection.
Tip: Identify the wattage and buy the regulator according to the specs.(42 inch type)

Dec 18, 2010 | Kitchen Ranges

1 Answer

I am installing a intilitech 7 day in wall timer replacing an old mechanical 12 hr timer. The load is a 1/4hp 2 speed attic fan. The original wiring had hot in hot out of the timer. This has hot in, hot...


Utilitec does not make a 2 speed timer.
http://waterheatertimer.org/Program-wire-Utilitech-LW60419.html

1) One possible option is a timer with NO and NC terminals like Intermatic-Grasslin FM1 series rated 1 HP. This example timer would have the motor running continually on either one speed or the other.
http://www.intermatic.com/~/media/files/intermatic/products/instructions/grasslin/fm1%20series%20time%20switches.ashx

2) Inside a 2-speed motor are two separate windings.
Windings are loops of copper wire that cause the fan motor to rotate.
For 2-speed, each winding has to be connected to a different 'switch.'
For example, like a ceiling fan. You pull the chain once, and electricity flows to one winding. Pull the chain again, and the switch sends electricity to another winding.

3) The following wiring diagram shows ordinary on-off timer connected to 2-speed switch: This is the basic plan for Broan Nutone 2-speed switch timer, which might be the product you are replacing
http://blog.airscapefans.com/wp-content/uploads//timer_option1_1-1024x768.jpg

4) Nutone makes a 2-speed whole house fan timer.
http://www.nutone.com/PDF/InstallGuides/CFS2WHins89777.pdf

5) And open following Broan Nutone manual that show the two spped timer wiring
http://www.nutone.com/PDF/InstallGuides/CFS2ins57169.pdf

Jul 01, 2010 | Intermatic Inc. ST01C Digital In-Wall...

1 Answer

Hunter fan with remote control was 3 speed, now only 2 speed


It sounds like fan motor is okay. There are two motor windings -- one low speed, one medium speed. Low winding gives you low speed, medium winding gives you medium speed, both windings give you high speed -- so I would say if you get high speed, both windings are good.

The remote (the hand held transmitter) controls the speed by raising and lowering the frequency of the current which is 60 cycle coming to the fan ceiling box. If the fan speed -selector switch (usually a pull switch) is set to high, when the remote (transmitter) signals the receiver to change speeds, the frequency of the current is changed by the receiver (the receiver is usually in the fan housing).

Sounds like you'll need to replace the remote system -- these come in sets, both transmitter and receiver, and cost about $30. If you're not experienced with wiring fans, you should get an electrician to do the job.

Apr 21, 2009 | Hampton Bay 24002 Ceiling Fan

1 Answer

High cool not working


Compressors on these units runs at only one speed. The change to high cool is only a change in blower speed moving air faster over the cooling coil. I would have the running capacitor for the fan motor checked. A bad capacitor can cause your type of problem. The other problem could be that the high speed winding in the fan motor is bad. Try it operation in the fan only position through the two speeds. If it works in the low and high speed for fan only your problem could be in the selector switch.

Jun 23, 2008 | Dometic Rooftop RV Air Conditioner

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