Timer not working on grundfos up-15 - Grundfos Comfort System Recirculator 595916

No, the pump is not rated for outdoors.
Build a cover for it
http://waterheatertimer.org/Water-heater-recirculation-system.html

Gene

Water Heater Timers Save Money

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

Troubleshoot resources:
http://waterheatertimer.org/Water-heater-recirculation-system.html

Gene

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

http://waterheatertimer.org/Water-heater-recirculation-system.html
Contact grundfos?

Gene

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

http://waterheatertimer.org/Water-heater-recirculation-system.html

gene

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

1) Check that plumbing is correct:
http://waterheatertimer.org/Water-heater-recirculation-system.html

2) The timer has 2 choices: thermostat operation or timed operation.
http://waterheatertimer.org/images/IMG_9325-grundfos-timer-800.jpg
http://waterheatertimer.org/How-to-set-timers.html

3) Add comment and say what you discover

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

If pump is hot, then replace
Pump should be warm but not hot
http://www.amazon.com/dp/B0078RZDS2/?tag=waterheaterti-20

Gene

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

Sounds like 2 problems:
1) Crossover and 2) Setting timer
Recirculation system has check valve that stops backflow of water when pump is turned off.
When check valve is clogged with sediment, or has worn out, then cold water enters hot pipe or hot water enters cold pipe when faucet is turned on.
Take apart connection where grundfos connects to both hot and cold pipes, and clean with white vinegar or CLR.
http://waterheatertimer.org/Crossover.html
http://waterheatertimer.org/Water-heater-recirculation-system.html

Open following link for setting typical FM/1 analog timer module on Grundfos recirculation pump:
Your timer module may vary in appearance.
Slide switch selector might be located below timer dial.
http://waterheatertimer.org/images/IMG_9325-grundfos-timer-800.jpg

Grundfos timer and pump operate by plugging into ordinary 120V outlet.

1) If outlet has power, then dial on timer should rotate.
If dial is not rotating, then check power to outlet.

2) If outlet has power, but timer is not rotating then timer has gone bad > if grundfos pump is working but timer is not working, you can buy cheap plug-in timer and use that as the timer.

3) If outlet has power and pump is not working, then manually rotate timer dial to see if pump will start.
If pump will not start, then you need a new grundfos.
There are no repair parts for these pumps, and nobody at Fixya has reported taking Grundfos apart and repairing it.
My Grundfos pump will not come apart.

4) Following link has links to Grundfos installation manual, website, product manuals, and contact.
http://waterheatertimer.org/Water-heater-recirculation-system.html#Grundfos

5) To set timer: Grundfos timer dial has movable pins that are used to set on-off times.
When pins are pushed out, timer turns pump ON.

6) Rotate timer dial clockwise until current time lines up with arrowhead located on inner dial.
Dial rotates as time passes, and pins move a lever that turns pump on-off.

Add a comment for more free help.
Also take advantage of fixya phone service.
For a price, expert speaks with you over phone while you work on Grundfos or any do-it-yourself project.
Fixya is always less expensive than a service call.

Following link shows links to grundfos and grundfos manuals.
http://waterheatertimer.org/Water-heater-recirculation-system.html#Grundfos

1) My grundfos stopped working because sediment clogged the pump, and the motor slowed.
When motors slow, they get hot and burn up.
I ask my friend who rewinds motors how to fix it, he said in the old days, they rewound every motor, but today they throw valuable scrap into landfill, and then buy new motors from China.
I told him not to retire, but go to school and teach kids how to rewind motors, and then took apart the grundfos line and cleaned it out with CLR, but it never worked again.

2) If timer stops working, but pump still works, you can buy cheap plug-in timer and connect grundfos to the cheap timer

Add a comment for more free help.
Also take advantage of fixya phone service.
For a price, expert speaks with you over phone while you work on timer or any do-it-yourself project.
Fixya is always less expensive than a service call.

Diagram showing timer tabs being pushed in or out to set programs:
http://waterheatertimer.org/Water-heater-recirculation-system.html#Grundfos

Grundfos illustrated installation guide
http://waterheatertimer.org/pdf/Grundfos-L-UP-TL-043-install-photos.pdf

Rotate programming ring clockwise until current time lines up with arrowhead on inner dial.
Current time must be reset after power outage.
Tabs located around programming ring control timer functions.
Each tab represents 15 minutes.
Tabs push in or out using a pen.
Tabs out = grundfos ON
Tabs in = grundfos OFF
Set manual switch to TIMER and timer program operates pump
Set manual switch to ON or OFF to override timer program