20 Most Recent Intermatic HEATER DELAY SHUT OFF SWITCH FOR INTERMATIC TIMERS Questions & Answers

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

Check that your pool heater supports optional fireman's switch
Black wires on firemans switch connect to pool heater. Power to fireman switch comes from pool equipment and not the timer.
If pool equipment does not support fireman, then cap off the wires.

Fireman switch turns off heater 15-20 minutes before turning off pump.
The purpose is so pool equipment lasts longer.

You can buy the fireman's switch separately, but if this is new timer, then switch is probably good.
Open following link to identify fireman's switch and related parts for the timer:

Upvote the help.
And take advantage of fixya expert assistance live.
For a price, expert works with you while you work on timer or any do-it-yourself project.
Fixya is always less expensive than a service call.

Intermatic... | Answered on May 30, 2011

Add a comment and provide more information.
A lot of factors need to be narrowed down.

Did everything work fine before connecting fireman burn-out protection switch?
What happens when you disconnect switch?
Is the timer rotating?
Does the manual override work?
Is this a new installation?
This sounds like a dual T-104 pool timer that controls more than the heater, what else is controlled, and do the other Loads work correctly?

Intermatic... | Answered on Nov 19, 2010

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

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

Intermatic... | Answered on Apr 18, 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

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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