Question about Heating & Cooling

1 Answer

How to change the thermostate on my Rinnia Energysave 556 WT heater

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 1,420 Answers

The thermostat on the unit is located in the lower right hand side of the unit behind the trim panel closest to the wall. Look for a yellow wire with a black rubber bulb on the end. It will have a few feet of extra wire tied up in the heater itself and allows you to raise it to get a better more accurate reading. To change it, you have to unplug it from the PC board and plug in the new one. You can not use a conventional thermostat on a Rinnai heater.

Posted on Mar 17, 2011

  • 1 more comment 
  • oomwoc1 Apr 28, 2011

    Hi, our heater reads the room temp as much higher than the actual room temp, would changing the thermostat as you have described above help this issue? Thanks :)

  • Chandler Ede
    Chandler Ede Apr 28, 2011

    I would lower it. If that does not help, order a new one from Rinnai. They are easy to replace. Good luck!

  • oomwoc1 Apr 29, 2011

    It helped a great deal! Thanks!



1 Suggested Answer

  • 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


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Rinnai 556 WT gas space heater flashing PF

most modern gas heaters use a code system to tell the operator what the problem is. look for a pattern in the flashing, and then compare that pattern to the literature on the inside of the heaters panel. When you have a diagnosis code, you can follow the appropriate course of action.

Nov 20, 2013 | Rinnai RHFE-556WTA Direct Vent Heater NG...

2 Answers

Rinnia 516tr gas heater cant change temp showing h10 or h11 or time

Check the secondary gas pressure change when the set temperature is changed

Aug 14, 2008 | Rinnai Heating & Cooling

1 Answer

Just need to no what is required to convert a Rinnia energy saver 1001ft space heater from natural gas to LPG?

hi change the burner injector and the pilot and the reg or the spring inside , you should be able to buy a kit for this.

May 07, 2010 | Rinnai RHFE-1004FA 38,400 BTU Energy Saver...

1 Answer

Looking for Manuals

Google rinnai 1004 and 556 manuals. I just did and found them

Nov 26, 2008 | Rinnai RHFE-1004FA 38,400 BTU Energy Saver...

Not finding what you are looking for?
Heating & Cooling Logo

Related Topics:

48 people viewed this question

Ask a Question

Usually answered in minutes!

Top Heating & Cooling Experts

Paul Carew

Level 3 Expert

3309 Answers

Tim Whalen

Level 3 Expert

3074 Answers


Level 3 Expert

80339 Answers

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

Answer questions

Manuals & User Guides