Question about Rheem Pool & Spa

1 Answer

Rheem pool heater, M406A, display has failed. It is only partially readable and has a dark spot inside it. Is the replacement part the PC board/controller? Is this a job for a savvy homeowner or call

Rheem pool heater, M406A, display has failed and is only partially readable. It has a black spot on the display and I wonder if water has gotten inside it. When I first turned it on, it was blinking randomly and that has stopped. I can't tell from the schematics what part this would be. PC board/contoller? Is this a job for a savvy homeowner or call a pro?

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

    New Friend:

    An expert that has 1 follower.

  • Expert
  • 66 Answers

The display is part of the pc board and it is very easy to replace. It is also fairly expensive part just to read the temp(around $400.00). If the heater works fine except for the display you can get by. Hit the up arrow button about thirty times this will ensure you have max'ed out the temperature at 104 degrees. From there with the down arrow you can count down to the desired temp. The mode button should work normally to turn the heater on or off as desired. This is obviously not the repair but it will buy time until you are prepared to replace it or have a technician out for another call.

Posted on Apr 13, 2014

Testimonial: "Thanks for the information! We also have a spa and I know that the cycle for the mode button is pool on, off, spa on, off. I can tell pretty quickly where the heat is going. Knowing the max temp really helps and your suggestion is just what we will do. We appreciate it."

Ad

6 Suggested Answers

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 there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad
  • 139 Answers

SOURCE: Service light comes on our Raypak RP 2100 pool heater.

this usually indicates a high limit condition.you must first ascertain if you have a component failure or a true high tempature condition.your model has 2 limit controls and they are both located in side panel on water in/out header

Posted on Sep 19, 2009

  • 5 Answers

SOURCE: I have Jandy RS4 system with 4-button poolside

Pull the cover off the control panel. You will probably find a button which would be accessible from outside the panel with a paper clip or pencil but is unlabeled. On the board itself by the button, in small letters it should say "reset". Push the button and see what happens.

Posted on Oct 09, 2009

  • 1 Answer

SOURCE: LLD125 pool heater leaking water from inside

My heat exchanger was cracked. I found an old welder who knew how to weld the cracks for $100 vs $900 for a new exchanger,. Also ordered replacement seals for the 2 chambers. I used high temp automotive engine sealant as an additional sealant precaution. Also inspected tubes and cleaned corrosion. Works fine last 3 years. Takes some mechanical skills.

Posted on Jun 29, 2010

  • 11 Answers

SOURCE: Pool heater sparks but does not light up

coud be several things, Do you have Gas and is gas toruned on. Is valve on. The Pilot could be dirty and need cleaned. $350+ sounds reallly pricy for a pilot assembly. Call your Gas Company and get an Estimate and a Qualifed Service tech. You may try turning Off the Power to the Heater Unit and turning it back on , and then trying to turn on heater again, So times after several atemps the valve will lock out and the power needs reset on Propane units.

Posted on Jun 29, 2010

  • 760 Answers

SOURCE: I just purchased a home

They have good listings on their web site.
http://www.rheem.com/product.aspx?id=8B064EC5-B708-4821-9F2B-DEF3A2243F90
That link should be to your model. When you click on the link for your manual (installation instructions)l, if it doesn't download. Right click on the link, and select download
So what is the problem?

Posted on Aug 12, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Rheem SPK display


if clicks then check gas line to ignitor if no click replace sparker

Jul 19, 2014 | Rheem Pool & Spa

1 Answer

Where is located pressure switch


inside front panel has 2 wires and a tube going to it

Apr 25, 2014 | Rheem M406A 399K BTU Cupro Nickel Pool or...

1 Answer

Rheem model p-m406a sns


sense no spark check ignitor

Nov 26, 2013 | Rheem Pool & Spa

1 Answer

Rheem pool heater there's no power to the display


ensure proper supply voltage to the heater....either 12 or 240 vac. display screen should get 24 vac.....if screen is supplied 24 vac then replace the display screen board.....if not getting 24 vac problem is occuring before display screen

Sep 13, 2013 | Pool & Spa

1 Answer

Circulation pump is running but FLO is displayed on panel and heat light goes out.


FLO is displayed because something has caused a reduction in water pressure through the heater. The spa control will turn the heater off when FLO is displayed to prevent a burn out.
I suggest checking the filter cartridge, the suction fittings & any valve which could be partially closed & restricting flow.
Try run the spa with out the filter cartridge if this clears the error then it is the cartridge.
If none of these work it is possible the your flow switch and/or pump is beginning to fail.
Good luck!

Mar 24, 2013 | RTO Sundance Heater Element Harness Black...

1 Answer

Rheem M406A, HL2 fault


high limit bad check gas pressure over heated

Oct 16, 2011 | Rheem M406A 399K BTU Cupro Nickel Pool or...

1 Answer

I received a notice that the filter needs cleaning. How do I do that?


THis is a PRS code (clean filter/strainer) correct?
This simply means that either there is no water flowing through the pool heater (possibly due to a dirty filter)
If you know you have good water flow, then your pressure switch has failed. Replace the pressure switch.

May 31, 2011 | Rheem M406A 399K BTU Cupro Nickel Pool or...

Not finding what you are looking for?
Pool & Spa Logo

Related Topics:

137 people viewed this question

Ask a Question

Usually answered in minutes!

Top Rheem Pool & Spa Experts

Steve Slater

Level 2 Expert

66 Answers

Gene Haynes

Level 3 Expert

5245 Answers

Tom Chichester

Level 3 Expert

45139 Answers

Are you a Rheem Pool and Spa Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...