20 Most Recent Rinnai Unvented Gas Zone Heater. 99% fuel efficient: Blower with Thermostat Questions & Answers

what kind of problem contact mfg

Bob, there are several reasons for what you described:

The gas line shutoff valve is turned OFF. The unit is not getting gas for ignition.
The pilot is clogged and needs to be cleaned.
The Child Lock Out button has been activated.

The above are the top 3 things that usually cause what you have described. Troubleshoot those and you will more than likely solve the problem.

Good luck. I hope this helped steer you in the right direction.

The pilot needs cleaning and the Thermocouple connection, where it goes into the gas control valve may be loose. If you can loosen the nut on the connection with your fingers, it's loose. Finger tighten it and with the appropriately sized open end wrench, tighten it only 1/4 turn more. If that doesn't solve the problem, you need to replace the Thermocouple. But, cleaning the pilot is important. Especially, the Oxygen Depletion Sensor (ODS) which is part of the pilot.

To assist you in how to clean the Pilot, I have included a link to a demonstration on "How to Clean a Pilot Assembly".

http://www.desatech.com/techDocs/Cleaning%20Demonstrations.pdf

I'm sure this will help you Troubleshoot and solve the problem. If I can be of further help please let me know.

Becky, heaters are picking up the fresh paint smell and making it 50 times worse. Although you may not be able to detect the odor, the heaters are picking it up. You need to turn the heaters completely OFF (pilot lights too). Wait at least 2 weeks before trying to use them again. If you have some good, warm days that you can open some windows, that will help to get the paint odor out of the house.
The odor is really not in the heaters, it's still picking up the fresh paint odor that your nose can't detect.

In addition, if you use commercial carpet cleaning products, the heaters should be turned OFF before cleaning the carpets and remain OFF for several days.

Vent-free Gas Heaters are very, very safe & efficient. But, because they use interior air for combustion, they pickup any strong odors and make them worse. Also, never burn scented candles and operate the heaters at the same time. Scented Candles soot anyway, adding the warm moist heat from the heater(s), will make them soot 50 times worse.

This should solve your problem.

Hi,
the heater is probably just dirty and needs to be clean really well...

Take everything apart and blow out everything with compressed air...

Put it all back together again and you will probably be good...

heatman101

Form what you have described it sound like the Oxygen Depletion Sensor(ODS) is clogged with dust, lint and/or pet hair. Therefore, the ODS reads the oxygen level in the room, as unsafe for operation and doesn't allow it to light and hold.

You can clean it yourself by removing the front half of the heater cabinet after turning the gas off to the heater.

You'll need a vacuum cleaner that has a hose and brush attachment (a shop vac works real well).
a can of compressed air with a straw nozzle (like you clean your computer with) and a flashlight.

Once the front half of the cabinet has been removed and set off to the side. You will have access to all the inner workings of the heater. Plus, if it hasn't been serviced annually, you find a lot of dust and lint.

Using the vacuum with a hose and brush attachment, vacuum all of the interior (including the burner(s) that you can safely reach. If your heater has an optional blower, vacuum that too.

Once the vacuuming is complete, take the can of compressed air with the straw nozzle attached and blow out the pilot tip where the flame comes out. With a flashlight, look down the pilot assembly from the pilot tip and about 2/3rds of the way down you will see a small hole in the side of the pilot assembly. That's the ODS sensor. Place the tip of the straw nozzle just barley into that hole and hive it a quick blast of air. If you watch closely, you will see debris fly out the other side.

Now, take a look at the Thermocouple (by the way, it's not a "Thermocoupler"). If it's a stand-a-lone thermocouple (Brass rod that sticks up in front of the pilot tip), does it look ashy or white? If so, take a strip of very fine sandpaper or emery paper and polish the thermocouple. You don't want to sand it down ... just polish it. After completing that, take a cotton ball dipped in alcohol and wipe the thermocouple tip off.

Before reassembling the cabinet, turn the gas back on and try lighting the pilot. It probably won't light the first time, because there's air in line from the gas line shutoff valve to the heater. If it doesn't relight immediately, hold the control knob down in the Pilot Position until you smell gas. Let off and wait 5 minutes, before trying to light the pilot.

If the pilot lights and hold after you have held the Control Knob in for one minute. Ease of the control knob and turn the knob to the ON position. The burner should light. Take note of the flames and their color. They should be Blue with Yellow tips. And the burner flames should be coming from all the little burner ports (holes).

If it all checks out well, turn the heater off, allow it to cool and reassemble the cabinet.


I hope this helps to solve your problem.

Rich

No these are specific to a type of gas and cannot be fitted for gas other than intended unless you intend to spend a bunch of money. If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61

The thing with these is over the summer months when they are not in use they get dust inside the ODS safety pilot. When that dust gets in there it cuts down on the oxygen inside and the safety simply shuts down because it was designed to do that. What you need to do is flush the pilot and allow it to dry. I use a product caller but you could use shop air or even a soda straw to blow out the pilot. I used to sell these thermocouples for ODS systems and they are not cheap. Most times they do not solve the problem either because the pilot is dusty. A brand new one won't solve your problem and a cheaper thermocouple don't work on these. More HERE


Here is the whole thing for $52 not a bad price
The thermacouple alone for these cost nearly as much by itself. If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61

Hi,

I suggest it is one of 2 problems.
1' The bearings have gone on the blower fan wheel.
If you remove the fan section from the heater, these can be replaced at a local bearings store.

2\ The fan has become unbalanced and is knocking on the surround.
Remove the fan assembly an clean with a damp cloth and compressed air if you have it available. Dust build up can cause this problem.

Best of luck, but it should be a fairly easy fix!

Cheers,

John

you will need a conversion kit from natural gas to LPG. For room sizing you will need to look in the manual