Question about Home

1 Answer

Continuous low speed, no heat

Have a Jacuzzi Z112 running R742 controls (110v). It has a dial thermometer and pushbuttom controls with one red light indicator. I am stuck in low speed. As soon as I throw the switch, low speed comes on. When I click to High, the pump gets louder, but there is no increase in water flow. The spa does not heat. The heat indicator light does not come on at any temp setting. I cannot shut it down without throwing the breaker. Some months back, I was getting an indicator light blinking that appeared to indicate a sensor issue. Then I stopped even getting the blinking red light. I have had the motor checked out, and I have replaced the sensors. Now, on to the circuit boards...I bought this last June (dealer trade in) and the board that was in it failed after a few weeks. I got a replacement from Jacuzzi and that failed after a few days. They sent me a warranty board which worked fine until I started having these problems in February. Two weeks after the warranty ran out. I had bought a spare from Ebay and I installed that board and had the same problems. I arc'd that board because I didnt take the time to fully mount it, but regardless, the symptoms were the same with both boards. I am out of ideas, patience and money. My guess is the low speed relay is fried. This was the initial cause to replace the board last year. Any help would be appreciated. Although they're not terribly expensive boards compared to others, I have already spent hundreds for parts and/or services I didnt need and cant return. And I hate to buy another board I cant return. Thanks.

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 323 Answers

At this point after having spent all that money, you have to figure something else is frying those boards.

You need to make a decision whether to A: Call a Jacuzzi repair specialist

B: Replace the the control panel, the board, and possibly even the heater and pump, thermometer and sensors.

C: Cut your losses and buy a new Jacuzzi. Trade this one in on it for whatever you can get. And from personal experience, stay the h*** away from Ebay when it comes to electronics.

Posted on Jun 04, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I have an older Jaccuzzi hot tub w a balboa h136 board and single button topside control. The hot tub will not heat. The LED lights up on low speed and goes off on high speed. I just replaced the heater a...


You have voltage across the element but no heat....

Disconnect one element connection and do a resistance/continuity test. Or use a clamp to measure running current.

Feb 13, 2015 | Jacuzzi Home

1 Answer

Jacuzzi z112


What is the problem you afe having with your Jacuzzi Water Heater?
Is this a Jacuzzi Hot Tub?-- Do you have some indicator lights on?-- what color are the lights?--
Is the Circulating pump running water thru the heater element?
Tell me more!-- Let's walk thru the system, and figure it out-- Mack B

Oct 13, 2013 | Water Heaters

1 Answer

Jacuzzi tub. Runs pump. Turn on light or heat. Shuts down. Error # 188


What kind of controls do you have? Electronic it sounds like but do you have a model number of the control box under the tub?

Feb 14, 2011 | Jacuzzi Bellavista 6 Whirlpool w/2-Speed...

1 Answer

MY PUMP WILL ONLY RUN ON LOW SPEED ( NEUTRAL AND BLACK) . PUMP IS MARKED 230 v , ? DOES THIS RUN ON NEUTRAL TO 120 FOR LOW SPEED AND NEUTRAL TO 120 FOR HIGH SPEED AND USE SEPERATE WINDINGS OR IS HIGH SPEED...


If this is 220v then your netural is not a netural but a common. Meaning it is common 110v to both the high and low speeds of pump. The high and low speed are the same leg of the 220v or the other 110v leg they just separate at the clock or high/ low switch. Then yes they run through separate windings for high and low.
If your not getting high speed it could be the high speed winding but be sure to check your switch and high speed lead first before doing anything else.

Sep 19, 2010 | Waterway Spa Pump Executive 56 Frame 4hp...

1 Answer

I have a mt2000-h magnum pump, but did not get the controlls with the pump. Im trying to figure out how to get the two speeds out of the motor when i only have one set of motor leads for the 220v hook up....


You have two windings if it is two speed. What you need is a switch
before your wires come into the motor you need to take one of the leads and run it through a high low switch. This will simply take one of your 110v lines and make it go to high and low speed on the motor.
Green will go to ground, one 110v line will go to common and the other goes to the switch. It comes out as two leads. One will hook up to the low speed terminal and the other will hook to the high speed terminal in the back of the motor.

Sep 09, 2010 | Jacuzzi MAGNUM POOL PUMP 1-1/2 HP MAGNUM...

1 Answer

Horrible awful noise coming from carrier heat a/c wall unit!


I watched your video on youtube. Sounds like a seized compressor. Do you know if it is reverse cycle or electric heat?

Jan 18, 2010 | Carrier 52PQ307 Wall/Window Air...

2 Answers

Motor is hooked up correctly according to directions Green ground, white nutral, red,high speed and black low speed. This motor was the replacement for a cal spa hot tub. The motor does not run on high...


You have 220v running into your motor, the red and the plack are in most cases the same 110v line and what your calling a white netural is a common line. In other words the second half of your 220v line. If your red and black are the two opposing 110v lines that make up your 220v and they are put on the motor and turned on they short aginst each other and blow the breaker. One of your 220v lines should come into your hi -low switch and then split to your high and low on the pump. The other half of your 220v line will go to the common or what your calling nuteral. The difference is a netural completes a 110v circut and a common completes the 220v circut it will take to run the motor. One of the splits will complete the low speed circut and the other will complete the high speed circut. You need to check your voltage comming into the spa, the way the spa is wired (110v-220v), and how the motor is wired (110v-220v). For your spa this will be in your owners manuel or on a scematic inside a panel or door and is quite often a plug you change from one spot to another. On your motor will have a scematic on the back of the motor that will tell you haw to adjust the wireing already in place on the wire board of the motor. This may sound deep but if all your voltages are set the same and your high and low are the same leg of power, this should fix your problem.

Oct 30, 2009 | Pool & Spa

1 Answer

Jacuzzi tub not heating


O ring set may be required slow job take care

Sep 18, 2009 | Home

2 Answers

Pump will not work in high speed


Only three posible problems. High is out on pump. Spa side control is out. Control box relay that runs high pump is out.Does upper controls(spa side) read out a code? Kirk

Feb 12, 2009 | Jacuzzi MAGNUM FORCE POOL PUMP - TWO SPEED...

Not finding what you are looking for?
Home Logo

Related Topics:

279 people viewed this question

Ask a Question

Usually answered in minutes!

Top Home Experts

Donni Steen

Level 3 Expert

659 Answers

Tom Chichester

Level 3 Expert

34759 Answers

Brad Brown

Level 3 Expert

15639 Answers

Are you a Home Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...