Waterheatertimer.org
is a self-help site
Compare 16 electric and 2 gas water heater timers Figure Volts Amps Watts for water heater 9 ways to save with water heater
Type 1 and type 2 surge protection surge protection
Search waterheatertimer.org / all results
Search using Find button  

 Tweet button  
How to wire 3-speed fan switch
Just buy another fan
How to replace fan switch

3 speed fan switch
3-wire switch illustration.
4-wire switch is not illustrated, read instructions to right.
There are different types of 3-speed/four wire switches.

ALWAYS photograph switch wiring before removing old switch, so mapping to new switch is easier.
Don't disconnect old switch before you are certain about the wiring.

Switch similarities:
each switch has same 2 similarities:
1) Each 3-speed fan switch has same pull-chain sequence: off-high-medium-low.
2) Each 3-speed fan switch has only one wire that connects to Hot wire. So one-and-only-one wire is Hot.
3-speed fan switch with 3 wires
Some 3-speed fan switches have 4 wires. 4-wire not shown.
Replacing 3-way pull-chain switch is not always simple.
Old and new switch should be tested to see if they are compatible match.

Old switch and new switch should be compared using multi-meter or continuity tester.  See image of multimeter

Switch differences:
3) Here's where different 3-way fan switches can vary:
Some switches are 3-wire, and some are 4-wire.
Each has 1 hot wire, but the other two or three wires on the switch are not necessarily the same from switch to switch.
4) For example connect power to Hot wire. Let's say switch is in off position. Pull chain once for high speed and power might flow from Hot wire and go to just one wire, -or- power might flow to two wires, depending on the switch.
5) Pull chain again for medium speed, and power might flow to just one wire, -or- power might flow to two different wires.
6) Pull chain again for low speed, and power usually flows from Hot wire to just one wire.
How to test:
7) Easiest place to start is to find which wire is Hot.
When testing, only one wire shows continuity to all other wires as you cycle through pulling the chain.
8) Once hot wire is determined.
Then use multimeter or continuity tester to test which sequence of wires receives power each time chain is pulled.
9) Repeat same test on old switch. Or use deduction to limit number of possibilities.
10) Note how old switch was connected. And then map the change-over to new switch. If old and new switches are not the same, then they will not work.
Buy:
Fan pull chain switches
Resources:
3-speed fan wiring diagrams
Multimeter
For testing, you need multimeter. Get one with alligator ends. Set dial to read ohms. Install battery and turn on device.
They make cheap and expensive, analog and digital.
Illustration shows analog type with pointed testing leads.

Buy:
Multimeters
Sperry instruments
Test 3-speed fan switch with continuity tester Test old switch and new switch with continuity tester or multimeter to match up wires.
Use this technique to identify Hot wire.
Use this technique to identify which wire, or combination of wires corresponds to each pull of chain.
Set multimeter to read ohms
Buy:
Continuity testers at Amazon
Typical wire connections might be:
L - Black, 1 - Grey, 2 - Brown, 3 - Purple
L - Orange, 1 - Black, 2 - Yellow, 3 - Purple
L - Black, 1 - Grey, 2 - Brown, 3 - Green
L - Grey, 1 - Yellow, 2 - Purple, 3 - Black
L - White, 1- Black, 2 - Blue, 3 - Yellow
Don't disconnect old switch before you are certain about the wiring.... and then don't be too certain without writing down the colors.

Larger image
Basic 3-speed motor
Fan motor receives voltage from Black Hot and White Neutral.
Inside all motors are coils of wire call windings.
Start winding and main winding are two separate thing.
Start winding plus capacitor get the motor rotating.
Main winding accelerates motor to selected speed.
With 3-speed motor, Hot voltage connects to main winding at 3 different points.
Only 1 point at a time receives power. That's what the fan switch does.
When voltage is applied to each point, the main winding is energized as voltage from Black Hot wire completes circuit with White neutral wire.
When less of the Main winding is energized, the motor slows down.


How to test which wire is which speed?
In basic diagram, there are four wires that connect to the motor: Neutral and 3 Hots.
Note which wires old fan switch connects to before starting.
White Neutral wire will connect to fan motor but will not be connected to switch.
Test each Hot wire to White neutral wire using multimeter set to Ohms.
High speed shows lowest Ohms.
Low speed shows highest Ohms.

Resources:
Motor wiring


Larger image
If old switch cannot be tested, make note what speed the fan is on before disconnecting old switch. For example the fan is stuck on medium speed. If possible, make note which color wire connects to Hot. Take photo of wires. Then remove old switch, and leave old switch stuck in medium. Test old switch to see which wire(s) has continuity to Hot wire. That wire(s) will be the medium speed. Then test new switch for which wire(s) is medium speed. This will narrow down the number of guesses needed to connect new switch.
If old switch cannot be tested and it is already removed from fan
Ohm out the wires...
You need multimeter. Set dial to read ohms. Install battery and turn on device.
3-speed motor will essentially have 3 different coils, 1 for each speed.

The ohm meter has a range from 0 to 1000s ohms to infinity.
Next, test each wire on the fan coil to the Neutral wire.
If the coil is broken, you get a reading of infinity. If the coil is shorted to ground, you get a reading of zero. Touch the two tester ends together and you get reading of zero.
If the coil is functioning correctly, the high speed coil would have lowest ohm reading, and low speed the highest reading.

Next test the new switch: Ohm test pairs of wires to determine which two wires have zero ohms with each pull. Again zero ohms means the two wires have continuity and conduct electricity.
How to wire double rocker switch Fan speed controls are different than ordinary on-off switch
Double switches, triple switches, and 3 way switches can control multiple lights, or control a fan-light. They can turn power on-off to the fan, and turn power on-off to the light, but cannot toggle fan speeds.
Illustration shows switch box with hot and neutral wires.
Sometimes the hot wire drops down to the switch from fan-light ceiling box

Buy:
Lutron fan speed control
Z-Wave Wireless 3-speed Fan Speed Control

Resources:
How to wire switches
Wire double rocker switch to GFCI Double rocker switch to GFCI

Resources:
How to wire GFCI outlets and switches
How to wire TM8111 switch TM8111 switch
Buy:
Pass & Seymour TN8111


Resource:
Wiring Manual
Speed control .pdf
How to wire Legrand TM813
Control fan and light with separate switches/ 3 way install
Pass and Seymour TM813 combination single-pole and 3-way switch.
3-way switch that controls the light, and single-pole controls a fan
Example shows removal of break-away fin since Hot wire powering 3-way circuit is located in box with other 3-way switch.
Buy:
Pass & Seymour TM813

Resource:
Manual
Additional links
Electricity leaves power plant Electricity
Power plant to end user power pole
Power pole to residential breaker box
Power pole to commercial breaker box

How to wire residential electric
How to wire commercial 3-phase
Basic household wiring
Basic water heater circuit

Figure volts amps watts for electric water heater
Test elements
Replace elements
How to wire tankless electric
How to change water heater temperature using timer
Change water heater from 240Volt to 120Volt
Replace thermostats
How to wire thermostats
How to wire water heater for off peak operation

How to twist wire
How to wire Cooper 277 pilot light switch
How to wire combo switch-outlet
How to replace 3-speed fan switch 

How to wire dimmer
How to wire 3-way dimmer
How to wire occupancy switch
How to wire motion detector
How to wire TM811 and TM8111 switches
How to wire wall timers
How to wire box timers
How to wire off-delay timer
Wire off-delay timer
How to wire pin timers

How to wire and troubleshoot photo eyes
Reverse photoeye so it turns on in day
24 Volt photoeye
24 volt programmable timer

How to wire switches
How to add switch
How to add 3-way switch

Timer for 3-way switch
Timer for 4-way switch
How to add outlet 
How to wire 3-way switches
How to wire 4-way switches

Troubleshoot Malibu outdoor lights
Terminals 
Select and install wire connectors
Select wire size

Electrical formulas
Electrical pages

How to wire arc fault breaker
How to wire GFCI
How to wire GFCI combo

Basic water heater circuit
How to wire water heater for 120Volt
Install old work box

How to drop wire from attic
Wire connector

How to wire 240volt outlets
How to install 3-phase timer
How to wire 3-phase outlets
How to wire 3-phase surge protector
What is 3-phase

How to wire whole house surge protector
How to wire under-counter water heater 

See inside main breaker box
Replace breaker
Install subpanel
Fuseholder
Contactors
How to solder wires
Whole house surge protector
3-phase surge protection
Circuit breakers

Difference between 120 volt and 240 Volt
Difference between 50Hz and 60Hz
How to install electric meter on water heater
How to wire water heater thermostat
How to wire water heater with switches and timers

6x6x4 Enclosures
Intermatic timer enclosures

Convert AC water heater to DC
How to wire DC solar water heater
DC relays for solar water heater
How to add another thermostat to water heater

How many Kwh to heat water
Chart for figuring heating time for electric heater

Gas and electric water heaters Support the economy:
Buy water heaters  from my associate links:

50 gallon Gas water heaters at Amazon
40 gallon gas water heaters at Amazon
50 gallon Electric water heaters at Amazon
40 gallon electric water heaters at Amazon
Hybrid / heat pump/ water heaters at Amazon

Resources:
How to install gas water heater
Troubleshoot gas water heater
Troubleshoot electric water heater
box timers Compare box timers
programmable timer Compare programmable timers
Countdown timers Compare countdown timers
Compare power packs
Resources:
Troubleshoot Gas valves with manuals
Icon gas valve

How to replace water heater element Waste King disposal
How to wire tankless electric


Install point of use water heater
Titan tankless
Anode rods anode rods
Recirculation system

Tankless recirculation
Point of use water heater
Type 1 and type 2 surge protection surge protection

Gas and electric water heaters Buy
Industrial electric

Industrial supplies

Tools and home improvement

Home and garden

Hayward pool

Southwire electric
Buy Tools
DEWALT
Black and Decker
Stanley
SKIL
Makita
Porter-Cable
Bosch

Irwin Hand tools
Klein hand tools
Fluke electrical testing
Dremel hobby tools

Campbell Hausfeld air powered
Tekton automotive
Powerbuilt automotive
Saws and saw blades
box timers Resource:
Compare box timers
DPDT timers
Intermatic
Control water heater w/ Z-wave
Intermatic control centers Resource:
Intermatic control centers: and parts
Digital control centers and parts
Tork control centers and parts
Subpanels
All control centers and parts
programmable timer Resource:
Programmable timers
Countdown timers
Off delay timers
On delay timers
Timer modules
Din rail
Twin & one-shot
Woods
Intermatic
Tork
Low voltage power packs Recirculation systems
Enter Amazon from my links
Amazon



E-mail: geno03245w@gmail.com
My response might end up in spam folder, check email folders
Back to top