Intermatic Hardware & Accessories - Recent Questions, Troubleshooting & Support


Here's a 240V diagram with clock timer and freeze control:
Add a comment if explanation does not fit your exact timer:

geno_3245_67.jpg
See image full size:
http://waterheatertimer.org/images/Freeze-protection-500.jpg

Here's how freeze control works:
Freeze control is like regular timer, except it turns ON by thermostat instead of time-clock
Freeze control turns ON pump whenever thermostat kicks on.
Both clock-timer and freeze-control are wired to pump in 'parallel' so to speak.
Think of it as having two controls wired to same pump...
Both controls can turn pump ON-OFF.
If one turns ON, and other is OFF ... then pump is ON.
If both are ON, then pump is ON ... and electricity just flows around on extra wires.
If both are OFF, then pump is OFF.

Say it's below freezing all day.
Freeze control circuit is ON all day ... pump is ON all day
Clock timer turns ON > but circuit is already ON, so timer just opens more wires for electricity to flow around on.
When clock timer turns OFF > freeze circuit is still ON because it's below freezing ... pump is still ON.

240V wiring:
Power leads coming from circuit breaker go to terminals 1&3 on clock-timer
Same power leads connect to freeze-control-black and freeze-control-red.
Or connect freeze-control-black and freeze-control-red to terminals 1&3
This action puts power to clock and power to thermostat

Pump wires connect to terminals 2&4
Same pump wires also connect to freeze-control-blue and freeze-control-yellow.
Or connect freeze-control-blue and freeze-control-yellow to terminals 2&4
This action connects pump to both freeze-control and timer.
When either clock-timer or freeze-control turn ON, then pump turns ON.

Intermatic Timer... | Answered on Nov 13, 2019


Google (intermatic)(STW700W)(manual) without parens OR contact Intermatic directly to inquire.

Intermatic... | Answered on Sep 14, 2019


Binding in the mechanism or a weak motor

Intermatic... | Answered on Aug 27, 2019


The closed contacts would mean the relay is not energized or contacts welded closed. Given the relay is the only moving part, the chances are good the relay has failed. But probably a 50:50 chance other internal electronics. Possibly lightning strike which makes it not likely repairable.

Anything can be fixed but economics would prohibitive. So unless you looking for an electrical project... no.

Open it up and look for arcing and/or burnt components. Check relay coil for continuity. If relay coil is open, you might get lucky and merely replacing the relay will make it functional.

Intermatic... | Answered on Jun 16, 2019


I have this timer and while it has power, it does now allow me the program it anymore. The screen shows all 8’s
6_11_2019_7_16_59_pm.jpg

Intermatic Inc.... | Answered on Jun 11, 2019


You can try methods such as adding extra insulation to the tank and lowering the water heater temperature to 120 degrees.

Intermatic... | Answered on May 20, 2019


Google (intermatic)(et70415cr)(manual) without parens for instructions.

Intermatic... | Answered on Apr 18, 2019


reading the specs i should say its a timer for only one zone. you can use it for one zone switching or for the pump. sorry.

Intermatic &... | Answered on Mar 14, 2019


You can check the voltage on the transformer to make sure it is the same ss the specification on the timer, but this stuff is really cheaply made. Take it back for warranty replacement.

Intermatic... | Answered on Dec 22, 2018


Pull out the center dial. Or just remove trippers after pulling out center dial.
That action will stop ticking sound but wire will be exposed, so cover with tape.
http://waterheatertimer.org/Intermatic-timers-and-manuals.html#E1020
Add a comment.

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

Intermatic Timer... | Answered on Oct 29, 2018


It should just lift from the front bottom.

Intermatic... | Answered on Oct 19, 2018


try intermatics website for instruction manual

Intermatic... | Answered on Oct 13, 2018

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