Rinnai Heating & Cooling - Recent Questions, Troubleshooting & Support

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I have an MPI monitor heater model gf 1800. It keeps flashing E17. why?

My GF 1800 was flashing the e17 code as salenski_mar said.If all is clear around vent pipe, sufficient fuel in tank,ect. take the front cover off the unit,2 sheet metal screws on bottom side left and right(remove power first)on the left side of my unit there is a round black barell shaped container called a heat exchanger.Located about halfway up a small panel with 2 white tube shaped wires going into it.remove 4 screws on this panel and remove the panel. There are 3 electrodes here . carefully clean these with a rag or fine sandpaper. Reassemble and retry the heater.I watched a heating tech do this to my unit and charge me $75.00 last year.Did it again this year and I saved a service call.Actualy I believe he used a $20.00 bill instead of sandpaper but clean the flame sensor and it may work.worth a try.
10/19/2021 6:54:39 PM • Rinnai Toyostove... • Answered 3 days ago
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Rinnai Heater - error message "12"

An error code of 12 on your heater means a flame failure has occured. It could be the following: Flame Rod dirty, Obstruction in burner, improper gas pressure, or a bad ignitor board. I am suggesting you get a technician who is familiar with Rinnai products to check out the above items.
10/19/2021 11:57:29 AM • Rinnai... • Answered 3 days ago
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Rinnai 556 WT gas space heater flashing PF ...?

I have the same issue, Flashing PF after off /on. The burner fires up and seems to heat OK but still flashing
9/30/2021 1:44:31 PM • Rinnai... • Answered on Sep 30, 2021
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We have a rinnai convector

There are a couple of things that can cause this odor. But, being sure it's really a gassy odor is more important. It must smell like "rotten eggs" to be gas. If that is the odor you're smell, turn the heater of and contact an authorized Rinnai dealer for service.

If however the odor does not meet the "rotten egg smell", there are other things that cause the odor, but it's not really from the heater.

If you have painted or stained within the last 2 weeks, the heater has picked up the odor of the fumes (which you probably didn't notice) and has made time 50 times worse. The same holds true for carpet cleaning or new carpeting odors. If this fits the scenario, discontinue using the heater for a week or two until the odors subside. In the meantime, if weather allows, air the house out. Also, remove and clean the heaters filter, before restarting the heater,

I hope this helped you to troubleshoot & solve the problem.
8/6/2021 4:24:56 AM • Rinnai Heating &... • Answered on Aug 06, 2021
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My Rinnai gas stove yellow flame, how we can fix it ?

Yellow flame means O2 starvation causing CO emmisions that are deadly! Have it serviced by a qualified gas engineer.
6/25/2021 7:07:17 AM • Rinnai Heating &... • Answered on Jun 25, 2021
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The starter ignition on my Rinnai Galaxie 21 wont start. Have tried vacumming any dust from the gas panels and ignition no luck.

Chung toi la cong ty co phan cong nghe KozyHome chuyen cung cap cac san pham noi that chat luong, uy tin. KozyHome Locaition: 21Bis Hau Giang, Phuong 4, Quan Tan Binh, Thanh Pho Ho Chi Minh 700000 Email: [email protected] Phone: 0906 353 247 Website: https://kozyhome.vn/danh-muc/sofa/sofa-vai-ni/ Facebook: https://www.facebook.com/kozyhome.vn/ Twitter: https://twitter.com/sofakozy
6/14/2021 6:39:35 AM • Rinnai Heating &... • Answered on Jun 14, 2021
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My rinnai wall furnace, 556, just runs and runs. Past set point and keeps going. Will not shut off.

Faulty thermostat. It needs replacing.
6/10/2021 6:08:59 PM • Rinnai Heating &... • Answered on Jun 10, 2021
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Rinnai 1004 - Temp on thermostat reads 10 deg cooler than actual, keeps running

Behind the unit near the floor level, is a yellow wire with a black bulb at the end. This is the actual sensor for returning air. If there is cool air infiltrating the area where it is located, it will keep the unit running until the return air reaches temperature. You could also have a bad sensor but highly unlikely. Make sure there is no air infiltration influencing the sensor. Also, you can unclip the sensor and pull out a few more inches of wire to locate it higher up away from the floor. Tie it up with a wire tie.

Rinnai it testing a remote thermostat but as of yet, there is no plans to offer one.
2/17/2021 9:53:00 PM • Rinnai... • Answered on Feb 17, 2021
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Rinnai model REH-25T-N pilot comes on but will go right back out when you let off button.

Usually happens for two reasons. The thermocouple needs replacing. This is the rod thing that glows red and is the safety for the main gas valve. The cover to the pilot flame has moved or worn away. Often you have to hold the button in for a lot longer than you think. You can also use a gas torch to heat the thermocouple if you can get access to it.
12/28/2020 12:19:19 AM • Rinnai Heating &... • Answered on Dec 28, 2020
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What is the current equivalent of the Rinnai 404

The link below is for a great natural gas option, but also has a LP gas alternative. I would recommend this option.
11/27/2020 12:53:48 AM • Rinnai Heating &... • Answered on Nov 27, 2020
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Lazer 56

Hi EJAKFbanks,

I believe by your description and my 8 years experience with Toyo Stove repair that you are missing part of the firing sequence. The firing sequence for a Toyo Stove L 56 is to blink on the burner light for 7-9 minutes, then it clicks up to the medium light (amber-yellow color). The medium light blinks and that is when the fuel pump kicks on and starts to pump. If the stove ignites, the medium light will glow for a second and then drop down to the low light (green) The low light will burn for awhile and at this time you will see a blue flame in the newer heat chamber models or a red glow, and perhaps some blue flame in the older heat chamber models, then the stove will kick up to the medium light for a bit, and then to the high light. An EE6 error code will show only when the flame is extinguished after actually taking place and a burn did occur in the chamber on low. An EE6 is usually one of 2 things: 1. There is an inadequate fuel supply for the stove to maintain a low cycle burn, or the medium, or high. Each cycle consumes more fuel than the prior one. Inadequate fuel supply can be due to a restriction in the fuel line such as icing like cholesterol in a persons arteries, or a plugged sump screen, blocked fuel line or filter, too low a quantity of fuel in the tank, or a fuel line that is not all gravity feed, as in, the fuel line runs down, down, and then up a few feet to get to the Toyo. In that case, the fuel has to rely on head pressure to get to the stove. Head pressure is the atmospheric pressure pushing on the fuel in the tank to force it up against the earth's gravity forces. Solution: You can find any restriction in the line, replace the filters, clean the sump screen, put heat on the fuel line to thaw any icing blocks. 2. An EE6 can be caused by a carbon chain developing from the burner ring, flame sensor or chamber wall to any metal part in the burn chamber. A carbon chain essentially "shorts" out the ground for the unit and the Toyo will shut off on EE6. Solutions:You can bang the side of the Toyo (Old frustrated Alaskan solution) which really just jars the carbon chain loose, clean the flame sensor, clean the fuel nozzle with a straight 3 inch wire, and stick a screw driver in the igniter (red wires) hole and rattle it around real good (another old Alaskan trick). Often, those three things will get your stove running again if it is a carbon chain. The problem will likely occur again, but it will buy you some time until you can get a tune-up done. Most likely, you need a tune-up. Question: When was your last tune-up? Toyo's should be tuned up every 2 years. Tthe book says every one year, but in my experience, every two years is the best bang for the customers buck. The three year mark usually begins showing signs of metal fatigue in other parts of the burn chamber/heat exchanger system so the costs rise a little each year, unless you are a lucky Toyo owner and for some odd reason, your stove can go 3 years between cleanings without any ill effect. If you get your stove running, run it hard on High for about 2 hours to clean and burn all the carbon out. Good Luck! toyotech, North Pole, Alaska
10/20/2020 9:01:43 AM • Rinnai Toyostove... • Answered on Oct 20, 2020
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Rinnai spectrum 28 can't remove filter

I can't believe no one answered this question properly. When the heater is transported new the fan filter sits below its normal level at the front so it will not slide out. The installer is meant to reposition it when instructing the owner how to operate the heater. you need to loosen the 2 screws holding the bottom panel. Then pull the bottom panel out a bit at the bottom and then lift the front of the filter up into its proper position so it can easily be removed and cleaned. Re tighten the screws in the bottom panel and your done.
9/12/2020 2:05:00 AM • Rinnai Heating &... • Answered on Sep 12, 2020
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Monitor 422 lights then goes out

Sounds like your flame rod may be dirty. You can take it out and clean it with some steel wool or sandpaper or emory cloth. If this doesn't help email me at [email protected]
12/7/2019 10:18:52 PM • Rinnai Toyostove... • Answered on Dec 07, 2019
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