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How to set timers

Written Instructions for analog:

1) Timer dial rotates as time passes, and trippers turn circuit on and off.

2) Set some trippers/ segments.
(identify trippers-segments below)

3) Move override switch to each position,

4) Then rotate timer dial two full revolutions.

5) Watch how load turns on-and-off to understand how to set timer.
Slide switch

(a) Move slide switch to each position, then rotate timer dial two full revolutions.
Rotary switch

HB113 override switch
-OR- (b) Change or move override button, then rotate timer dial two full revolutions.
Override switches

1) Each timer has override switch

2) Move override to each position and then manually rotate timer dial to see how load turns on-off

FM1 override switch
Some timers have 3 positions for the switch. Try each position.
Click pins in and out

Click pins in and out
GM40 timer dial
Tripper pins

Move Pins/ segements with finger or small tool

Resource: Timers with Pins
FM1 series
GM40 timer

Vertical analog
Segments move back and forth

Hagar EH 010 timer
Larger image
Hagar timers
Set current time on vertical analog timer
Vertical analog

Move trippers to side

See din rail timers

Raise segments using finger

Timer segments
Raise segments

GE box timers

Pull up segments

See outdoor timers
See plug-in timers


Raise segements with finger
Each segment is 1/2 hour

See segment timers
See outdoor segment timers

Push segments down and outward


Push segments down and outward
Each segment is 15 minutes

Analog timers with 15 minute intervals
Insert tripper on dial

Intermatic E1020 and 1010
156EB1945A trippers at Amazon
Order Intermatic Trippers
Push down and rotate moveable tabs

GE timers


Trippers move small switch located on edge of timer dial

Resource: Timers with trippers
Intermatic analog timers
Intermatic Trippers and parts
Set current time

1) Identify hours on dial

2) Identify daylight and nighttime hours

3) Rotate dial until current time lines up with triangle

Rotate dial until current time lines up with arrowhead.
This will set the clock.

Rotate dial until current time lines up with arrowhead
Set current time

Rotate dial until current time lines up with arrowhead.
 FM1 timer dial
Rotate dial until current time shows on clock face
Vacation timers are preset for random on-off times and cannot be programmed

Timer randomly turns light on and off.
Woods 59202 vacation timer

Vacation timers cannot be set

Vacation timers are pre-programmed.
Rotate dial until current time and day line up with arrowhead.

See random vacation timers
Brinks - Arlec -Westek _geyser - Fato - Onesto - HPM - Hamilton etc

Intermatic ST01C
Intermatic EJ500

Moonray - Paradise - Portfolio
Sprinkler timers

Timex - Deihl - Steyle - etc
All manuals available on waterheatertimer.org
Programmable timers
Open links to find manual

Gardena T1030    
Gardena                          Utilitec
       Westek TE06WHB
Timex                                 Woods

If you cannot find manual, or have problem, then email
Check spam folder for response
Larger image
LCD display is not lighted

Intermatic ST01C buttons
All Intermatic timers

Digital wall timers that do not require neutral wire

ST01C  7-day/ battery operated no neutral required / single-pole or 3-way/ 1 year warranty

Ei600  / same as ST01 except 5 yr warranty instead of 1 yr warranty

/astronomic or programmable/  single-pole 3-way/ 1 yr warranty/ No neutral/ uses CR2 battery
Programmable or Astronomic dawn-dusk/ 6 ON and 6 OFF settings per 7-day week
Incandescent, CFL, LED, motors, ballast, DC loads/ AC and DC loads 24V up to 277Volt.
Permanent override/ No loss of memory in power outage or battery change

Intermatic ST01c timer at Amazon
Intermatic ST01 timer
Ei600 5-year warranty timer at Amazon
CR2 replacement battery at Amazon
CFL bulbs at Amazon
Manuals/ resources:
ST01C manual
Sell sheet with model numbers
Ei600 manual
Sell sheet with model numbers
How to program ST01c and Ei600 timers
How to wire ST01C and Ei600 timer diagrams
Control any 240volt load with ST01c or Ei600 timer
How to wire this timer to control water heater or any heavy-amp load
Push button until number or letter displays:
F always OFF; O Always ON
D ON at dusk, OFF at Dawn
Numbers 1 through 9 means ON at dusk and OFF 1-9 hours later
1.-9. ON right now, OFF 1-9 hours later
More timers with same features
One-button photoeye digital timers
 Woods-49103-N1502 Westinghouse 00453 timerWestek SLC6CFLWoods-59479
Rotate dial to select options:
Off = always OFF; ON - always ON
Dusk-Dawn means ON at dusk, OFF at dawn
Select 1, 2, 3, 4, 5, 6, 7, 8 hours: then timer turns ON at dusk, and lights turn OFF 1, 2, 3, 4, 5, 6, 7, 8 hours later

More timers with same features
Outdoor photoeye timers
Westinghouse 00451TM-025 timer59730-outdoor-power-stakeWoods 17321 putdoor timer
Countdown timers/ manuals, wiringcountdown timers
Boxtype timers/ manuals, wiring, parts
Intermatic GM series
Intermatic ET series
Box timers
Open link to find manual
Intermatic GM seriesTork-DTU40
GM series NO NC timers and wiringGM series timers
Intermatic box timers:

T100 series timers and manuals
How to wire T100 series
How to set box timers
Troubleshoot box timers
Trippers and parts
Model numbers, and manuals

Intermatic GM series
Intermatic box timers/ pool timers
Intermatic T104P201 timerT101M
Larger image
Intermatic control centers:
+ manuals and parts

Digital control centers, parts and manuals + zwave

Freeze controls and parts and manuals

Air controls and parts and manuals
Control centers
Intermatic control centers
Malibu, Moonrays, Intermatic etc power packs
Kichler power packs
Low voltage timers
Open links to find manual
P1353 digital timer and manual/ with control centers Digital pool timer
Open link to find manual
Timer modules/ manuals and wiring Timer modules
Open link to find manual
Intermatic PB300 Intermatic FM1D20 CN101A timer wiring 
Intermatic defrost/ manuals and wiring
Paragon defrost/ manuals and wiring
Commercial defrost timers
Intermatic defrost timers
Din rail timers/ manuals and wiring
Hagar timers/ manuals and wiring
Din rail timers
Din rail timers
3-phase timers
3-phase wiring
Commercial 3-phase timers
3-phase timers
Troubleshoot household timers
Troubleshoot Household timers

Intermatic EI500        
Tork 701A   Pass and seymour RT12
Grasslin ET616 

How to wire In-wall timers/ All brands

How to wire wall timers
Intermatic GM seriesTork-DTU40

How to wire Box timers

How to wire box timers
Brands of box timer

Din rail timers

How to wire Din Rail timers

Misc din rail timers
Intermatic Din Rail timers
Tork Din Rail series
Hagar Din Rail series

Countdown timers/ Off-delay timers

Countdown timer horsepower ratings
Pass and seymour TM8113 How to wire switches

How to wire GFCI

wire 240 Volt outlet How to wire 240Volt outlets
circuit breakers are warm Household safety

Difference between 120 and 240volts

Troubleshoot household electricity

Timer for Iron

Countdown timer for electric iron
At Amazon
Simple touch at Amazon
See all the Woods timers

Timers fail frequently?

 More than one timer has same problem? Test outlet.
Outlet polarity Test outlet with circuit analyzer from hardware
Read circuit analyzer
Circuit analyzers at Amazon

Never assume power is OFF

Use non-contact voltage tester on timer, on wire, on outlet to see if power is present.
Press button on tester, if single beep then no power is present. If continuous beep then power is present.
Never stand on bare ground, always stand on dry boards, do not hold or touch anything metal when working on timer or water heater that has power, tape tester leads to wood sticks, never touch wet water heater, or flooded water heater, or timer that had a short or fire without turning power OFF.

Multimeters at Amazon
Buy non-contact voltage tester at Amazon
Electric testers at Amazon

Shop Amazon - Industrial and scientific
Shop Amazon - Industrial Electric Products

More timers

 EJ500 Utilitec Tork
Diehl timers   Diehl timers Grasslin Aube T1032   Honeywell
ST01C  ST01C UPM Aube T1032Aube
Intermatic EI500Intermatic GE  Leviton
Gardena T1030  Gardena Brinks timerBrinks  Dayton
Westek TE06WHB Woods
Vacation random timers
Power pack  Timex
Westinghouse timers
Sylvania  Countdown
    Water heater Hagar
Compare timers
Water heater Box timers
  Power strips Woods 49028   Outdoor timers Westek timers    Westek
Sprinkler timers

Coleman timers
Noma timers
Noma thermostats
Misc timers
24 volt timers  24 volt timers
3-phase timer   3-phase timer

Intermatic parts
Intermatic trippers and parts
 Dayton Sprinkler timers Power pack
Wire T1906 and T1905 timers
Wire T-101 T103 T104 timers
Paragon timers and manuals
Tork TU universal timer
Westek box timers
Wire EH40 and WH40 timers
Tork timers and manuals
Tork TU universal timer
Troubleshoot intermatic
Sylvania timers
Westinghouse timers
Westinghouse timers
Timex timers
Brinks timers
Intermatic GM series
Intermatic GM series
Pool timers and manuals
Intermatic T104P201
Wire GE 15207 timer
Recirculation system
Hot water circulation system
How to wire Tork DTU40

GE box timers
How to wire Intermatic GM40
Intermatic GM series

Clean sediment from tank

Anode rods

Cost to run water heater

Replace circuit breaker

Low hot water pressure

Compare all water heater timers
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Leaking water heater

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How to wire pin timers

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How to wire switches

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Select and install wire nuts
Select wire size

Replace breaker
Install subpanel

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

How to drop wire from attic
Romex 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
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
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box timers Compare box timers

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+ manuals and parts

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