iFixit - Answers With Device "Marco UP Series Electric Pump"

Marco UP Series Electric Pump: The pump keeps turning on every few minutes and runs for 6 seconds

Sun, 08 Jan 2023 10:32:11 -0700

The pump turns on every minute and runs for 6 seconds without any draw of water from the system.

⟐ Commented January 08, 2023 at 10:32 MST

Marco UP Series Electric Pump: Can I reduce the pump output water pressure?

Wed, 03 Aug 2022 07:39:42 -0700

I would like to reduce the output water pressure to better suit the system in my boat. Can this be done?

⟐ Answered August 03, 2022 at 7:39 MST

Marco UP Series Electric Pump: My UP6/E Marco pump is passing water into the electric motor.

Wed, 16 Jun 2021 01:04:44 -0700

Does anyone know how to get replacement part numbers for this water pump? I have the parts breakdown diagram, but it doesn’t show part numbers.

⟐ Answered June 16, 2021 at 1:04 MST

Marco UP Series Electric Pump: Bleeding the pump every few days?

Sat, 24 Apr 2021 06:43:04 -0700

Why do I need to constantly bleed this pump every few days.

⟐ Commented April 24, 2021 at 6:43 MST

Marco UP Series Electric Pump: Can these pumps be PWM controlled to vary output flow?

Tue, 13 Oct 2020 06:26:46 -0700

My question is specific to the UP3 series pumps and whether or not they can be PWM output controlled to vary output flow. The pressure is low (less than 15psi). Is there a recommend maximum PWM frequency? I was thinking 30Hz or less for this type of device. Also, I noticed on the 12VDC tag it says EMI filter inside..do not use with PWM, but the 24VDC version does not have this same warning. Can you please clarify?

⟐ Answer edited October 13, 2020 at 6:26 MST

Marco UP Series Electric Pump: UP6/E output pressure low

Tue, 02 Aug 2022 09:04:50 -0700

The output water pressure has become low. I swapped out the drive gears from a same model pump and still low water output. Any suggestions?

⟐ Commented August 02, 2022 at 9:04 MST

Marco UP Series Electric Pump: The pump is running but no water

Mon, 28 Sep 2020 22:38:12 -0700

The pump is running but there is no water

⟐ Answer edited September 28, 2020 at 22:38 MST

Marco UP Series Electric Pump: Can UP3/E function on slow speed with SCS?

Tue, 09 Sep 2025 13:29:40 -0700

I have installed a Speed Control System together with my UP3/E pump. Normal speed, pump is working perfect. When I select slow speed, the pump is pumping slowly for a while until it stops completely and it will not pump again until I press reset button. LED is steady red as from the moment I select low speed. When pumping the red and blue led blinks alternatively. When I select the high speed again, the pump is working perfect again. My question: Does someone recognize what I wrote down? Is the SCS compatible with the UP3/E or is it maybe not?

⟐ Commented September 09, 2025 at 13:29 MST

Marco UP Series Electric Pump: Pump gears are not turning.

Thu, 01 May 2025 07:16:51 -0700

We’ve installed the pump one year ago on our boat. We left the boat for six months and when coming back today, the pump was not working anymore. It blinks 24 (or 25?) times red and the an orange light. It repeats this for three cycles and then the red led signals overcharge. I guess the gears are not turning. I’ve added water to the chamber, but still the same. Can anyone help?

Thanks!

⟐ Answer edited May 01, 2025 at 7:16 MST

Marco UP Series Electric Pump: Safe for drinking water?

Mon, 24 Feb 2025 02:56:25 -0700

Is the pump safe for drinking water?

⟐ Answered February 24, 2025 at 2:56 MST

Marco UP Series Electric Pump: Pump in alarm after 40 sec

Thu, 31 Oct 2024 09:46:23 -0700

This weekend the pump was installed and it appears that after 40 seconds the pump goes into alarm? We have checked everything carefully, water supply OK, venting OK?

When the pump goes into alarm, the yellow and blue light flashes, which alarm is that ???

⟐ Answer accepted October 31, 2024 at 9:46 MST

Marco UP Series Electric Pump: UP10 -XA Power Supply Voltage Range

Tue, 01 Oct 2024 06:43:53 -0700

What is the 24V UP10-XA Pumps operating voltage range

will it work at 16V

⟐ Answer accepted October 01, 2024 at 6:43 MST

Marco UP Series Electric Pump: Any special measures required to start a brand new pu ichmp?

Tue, 13 Jun 2023 05:55:01 -0700

I just installed a brand new UP3/E. When I switch on power, nothing happens at all. No LED shows any light, no sound from the pump. It is definetely filled with water, except the upper half of the inlet filter. When I loose the front plate, water pours out. Same with the bleed screw. The cabling is correct, as my old pump ist working fine on the very same connections. Is it dead on arrival, or what may I need to do to start the pump for the first time?

BTW, the manual mentions situations where a reset may be required, but seems not to explain how to perfom one. So how does it work?

⟐ Commented June 13, 2023 at 5:55 MST

Marco UP Series Electric Pump: Are these UP pumps reversable?

Mon, 19 Dec 2022 14:49:48 -0700

Can I reverse the flow on the pump? If yes is this done by reversing the polarity?

⟐ Answer accepted December 19, 2022 at 14:49 MST

Marco UP Series Electric Pump: UP3/E electric pump filter size please

Sun, 09 Oct 2022 21:21:00 -0700

i have a UP3/E electric pump with a leaking filter which I cannot seem to seal, I require a replacement, you have 3 on your web site, which one do I need and where can I get one please.

⟐ Answer edited October 09, 2022 at 21:21 MST

Marco UP Series Electric Pump: What is the thread size for the inlet and outlet ports?

Sat, 24 Sep 2022 20:51:08 -0700

What is the thread size, or designation, in the inlet and outlet ports?? I can’t find it anywhere.

Update 4-20-2021

I believe the model is GCF Marco UP3-R

⟐ Answer accepted September 24, 2022 at 20:51 MST

Marco UP Series Electric Pump: Marco pump up2/e and the Red light is flashing slow.

Sun, 28 Aug 2022 00:10:00 -0700

I have a new Marco pump up2/e and the Red light is flashing slow. It is trying to reset itself 3 times, after that the red light remains solid. I have tried everything, including checking the brushes and fuses. Everything seems to be fine. I am wondering what this problem could be. Does anyone know a solution?

⟐ Answer edited August 28, 2022 at 0:10 MST

Marco UP Series Electric Pump: UP12/E-LOBR for ATF oil coolig system?

Thu, 10 Feb 2022 03:18:47 -0700

Hello,

I,ve question is good option to built ATF oil cooling system for cooling electric motor with this pomp ? how long can this pomp work, and can i control flow parameter by the SCS or by simple valve ?

⟐ Answered February 10, 2022 at 3:18 MST

Marco UP Series Electric Pump: Automatic air drain on air vent

Tue, 17 Aug 2021 05:49:44 -0700

My pump is installed on a sailboat for fresh water. Fresh water tanks are flexible and there is often air passing into water hose. I must unscrew the air vent cap to remove air and prime the pump. I wonder if I can install an automatic air drain, like on radiators at home. I don’t find the characteristics of the air vent cap screw. Could you help me fixing this? I assume many people have this problem with flexible tanks. Thank you

⟐ Commented August 17, 2021 at 5:49 MST

Marco UP Series Electric Pump: Motor runs. No flow.

Mon, 31 May 2021 02:29:33 -0700

UP6/A. 6.213. Pump runs but there is no flow.

use. Yacht sea water flush.

Q. Is this a serviceable repair. . ?

⟐ Answered May 31, 2021 at 2:29 MST