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Intermatic pool pump timer face stops rotating even though the gears behind it keep moving. What could be wrong?

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  • Intermatic Master
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Following link has general maintenance and photos to fix various problems and catch the timer up-to-date:
http://waterheatertimer.org/Photos-of-WH40-timer.html

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Posted on Nov 10, 2017

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Posted on Jan 02, 2017

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SOURCE: remove Intermatic 60 min. wall timer face plate only from wall

That knob should just pull straight off. Check to make sure there isn't a tiny set screw on the side, but otherwise you can pull it off and remove the cover plate.

Posted on Jan 24, 2009

  • 12 Answers

SOURCE: Intermatic timer will not turn pool pump off

If your timer is not turning off the pump its probably wired incorrectly. Check the wires on the back of timer as it should work the same as a regular light switch. They may be reversed.

Posted on Jan 26, 2009

jmgldsmth
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SOURCE: pool timer not turning pump on

the timer motor brushes are worn out

Posted on May 28, 2009

protek480
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SOURCE: Intermatic pool pump timer, time clock won't turn

Check your wiring, it sounds like it's not right. The clock needs 120 volts to run.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/craig_3fa289bf857b1a3c

Posted on Jun 30, 2009

  • 1 Answer

SOURCE: how to replace clock in intermatic timer

I need to replace the timer on a model #ML600TW

Posted on Oct 19, 2009

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What position is lever on intermatic pool timer t104p3 for timer to work?


Lever automatically moves back and forth as trippers pass.
Move lever to ON position, move to the right.
If timer dial is not rotating, then check wiring, or replace clock motor:
If timer worked before and stopped working, but dial still rotates, the trippers are worn down, replace trippers:
http://waterheatertimer.org/How-to-operate-and-set-T104-timer.pdf
http://waterheatertimer.org/Buy-T100-series-timers.html#pool
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html#T104

Gene
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If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

May 20, 2014 | RTO Intermatic Inc Ej351c Timer Night...

2 Answers

Pool pump clock


T104M used WG1573 clock motor:
http://waterheatertimer.org/How-to-troubleshoot-Intermatic-timer.html
http://waterheatertimer.org/How-to-replace-Intermatic-clock-motor.html
http://waterheatertimer.org/Intermatic-trippers-and-parts.html#T100
The timer mechanism has metal gears, while the clock motor has plastic gears. If the metal gears get dirty and bind, it will strip the plastic gears.
Turn off power, pull timer out of box, Clean out timer with compressed air, and spray WD40, add a bit of white grease to lever where trippers make contact, then replace clock motor ... and buy another set of trippers to have on-hand since they are designed to wear down so timer will last longer.
If timer body is broken so dial does not rotate, then buy new T104 and snap new mechanism into old box. Buying whole T104 with enclosure is cheaper than buying T104M mechanism only.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

May 15, 2013 | Pool & Spa

1 Answer

Intermatic t101


99% chance the Timer wires are reversed ... and line from breaker and line to pump are reversed. Or remotely possibly the circuit is 240V, and somebody changed clock motor on old T101 from WG1570 to WG1573, converting old T101 into T102...
http://waterheatertimer.org/How-to-troubleshoot-Intermatic-timer.html
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html#T101
Add a comment with what you discover

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

May 14, 2013 | Hardware & Accessories

1 Answer

Pool time switches pool on, but off does not trip off, and can't do it manual. When I push it on off, the pool pump tries to stop but continutes running. Have to use breaker box.


Model number of timer is not known.
Is this new installation? Or installation that worked before and recently stopped working?
If the manual override lever on timer does not turn Load on-off, then 1) wiring is wrong or 2) timer has gone bad or 3) pump has a short.
I suspect a short since you say the pump 'tries to stop running.'
Copy following links for troubleshoot walk-thru, and correct wiring:
http://waterheatertimer.org/How-to-troubleshoot-Intermatic-timers.html
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Jun 28, 2012 | Intermatic T104 24h 208-277v Mechanical...

1 Answer

Timer will not shut off Pump with tripper.


T40004R 100 amp control panel has one 240Volt T104M timer mechanism.

1) If this is new installation then timer is probably wired wrong.
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html

2) If timer worked before and stopped working, and timer dial is rotating and keeping good time, sounds like you need set of 156T1978A trippers.

3) Open following link for timer troubleshoot and trippers:
http://waterheatertimer.org/How-to-troubleshoot-Intermatic-timer.html
http://www.grainger.com/Grainger/timer-accessories/timers/electrical/ecatalog/N-8hi

Jun 18, 2011 | Intermatic Timer T40004RT3 300 Watt Pool...

1 Answer

My model t12404r will not turn the pump off. Even if I manually move the switch to the off position, the pump keeps running. The only way to stop the pump is at the breaker box. The other timer in the...


I don't know if you have a 240V pump and 120V cleaner.
Or if both are 120V

T10000 series manual has troubleshooting
http://www.polytecpools.com/images/pdf/intermatic_t10000r.pdf

I specialize in timers.
If the manual override will not work and the circuit cannot be stopped by the timer:
Then the timer is bad.

To check for sure:
When pool pump is OFF, use tester and check voltage across terminals 1 and 2 on pump side
When cleaner is OFF, use tester and check voltage across terminals 1 and 2 on cleaner side

What test results show:
The cleaner side test across 1 and 2 should show no voltage when timer is OFF
The pump side test across 1 and 2 should also show no voltage when timer is OFF

If the pump side test across 1 and 2 shows voltage all the time, then the timer is broken.
There are no replacement parts for the internal on-off mechanism.

geno_3245_5.jpg

Polytec pools and spas sells the same timer for $215:
http://www.polytecpools.com/intermatic-t12404r-control-center-w220v-dual-timer-wo-breakers-p-543.html
BH electric shows the T10000 series for $178
http://www.beverlyhillselectric.com/t12404r.html

Add a comment if you need help wiring your new timer

You have what is called a 2-channel timer.
A single-channel timer can operate 2 or more Loads (pump, cleaner), but the Loads turn on-and-off at the same time.
A 2-channel timer has a clock (or digital program in the case of digital timers) so each Load turns on-and-off with a different schedule.

As a general rule, 2-channel timers are more expensive.
To avoid the higher price, you can replace a two channel timer with 2 ordinary timers.
Let me offer a replacement strategy that might save you money.
Keep the existing timer for the cleaner.
a) Buy Intermatic T-104R weatherproof timer if you have 240V pool pump.
b) Buy Intermatic T-101R weatherproof timer if you have 120V pool pump.
Here is a resource for the Intermatic timer I am suggesting:
The webpage has links to sellers, it has manuals and it has wiring diagrams for the do-it-yourself-er
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html

Nov 04, 2010 | Intermatic Timer T12404R Pool & Spa...

1 Answer

The timer clicked OFF but poot pump kept running. Had to trip breaker to stop pool pump.


Your Intermatic timer has a manual override.
The override is a good diagnostic.
Click the manual override and see if pump turns on and off.

Next, watch if the clock is rotating.
If the clock is rotating, the OFF tripper may be worn out and you need a new tripper

geno_3245_4.jpg

If the clock wheel is not rotating, you need a new clock motor.
If you have T104, your clock motor is 240Volts
If you have T101 or T103, your clock motor is 125Volts
Buy trippers and clock motors at Grainger
Clock motor replacement takes a small star-screwdriver bit
http://www.grainger.com/Grainger/timer-accessories/timers/electrical/ecatalog/N-8hi

If your manual override is not working, then the gears might be rusty and need to be cleaned or your timer needs to be replaced.
You can buy same model number timer and then swap the insides without changing boxes.

Add a comment if you need more help.
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html

Nov 02, 2010 | Intermatic & Indoor/Outdoor Rain Tight...

1 Answer

I have the double timer box one for pool and one


If you can rotate it by hand (without pulling it out to release the gears) then it is probably shot.

Jul 06, 2009 | Intermatic & Indoor/Outdoor Rain Tight...

1 Answer

I have a t104rd89 to run the pool pump.. it will switch on manually but not automatically using the trips. what is wrong?


You have to have an 'on' & 'Off 'tripper in place and the timer is rotating/keeping time.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/craig_3fa289bf857b1a3c

Jul 03, 2009 | Intermatic & Indoor/Outdoor Rain Tight...

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