Rinnai Ultima II

Service 90 error codes frequently displayed, just over two years old and now out of warrenty. Can't opperate above 21C or cuts out, even when functioning correctly did not heat effectively. 5 stars for safety though as it cuts off frequently.

Replaced an older Vulcan Heritage Heater with the Rinnai Ultima II - and simply it does not heat anything. You can be standing 2 feet in front of it and there is not warmth. After 8 weeks of phoning every second day and trying to get something sorted with Rinnai, they now tell me that it would never be able to heat the room that it is in and therefore I need something more powerful. The Vulcan used to heat the room and the Rinnai is meant to be more efficient with greater capacity.

Worst choice ever.
I replaced an very old but very reliable Rinnai and have been driven crazy with '90' errors ever since.
Call out costs are impossible on a pension so I carefully cleaned the dust out every few months only to gain a few more months of operation - a ridiculously tedious and unfriendly process. Now it's error code 14 and with the current cost of gas I'm giving up. This overly sensitive technology might survive in squeaky clean parts of Japan but just doesn't cut it in Australia.

The heater has major problem and constantly comes up with an error which the company fully knows about, and has failed to address.
It has never functioned from the time of installment.

Had constant errors (usually code 12 or 13) since warranty period finished. When it works its great but this is getting less and less common. Difficult to start when needed therefore tend to leave on more than necessary. Many others have this same problem. This is a known defect. Difficult to recommend.

So regret buying this piece of crap have had nothing but trouble have to keep pulling it apart to dust off sensor for getting to much dust and it won’t ignite. First time it happened was first year of warranty we got it fixed. Then it kept happening and every 3 weeks dust gets built up and it won’t ignite. I’m so annoyed it’s only three years old now. Don’t waste your money.

Only had the heater 3 months. It heats our open plan house very well wich I didn't think a space heater could do.We had a gas log heater before this and it was useless. Very happy so far.Maybe some of the problems people are having is from poor installation. Thanks

I had to replace a piece of glass that I had accidentally broken as i was cleaning. Rinnai did not want to supply me with the glass because i do not have an account with them so they suggested me to go to plumbing supplies and it cost me $245 for a glass that is 555mm x 225mm

Had heater installed for a week. heats beautifully. I replaced a 30 year old rinnai that worked fine but lacked the capacity of heating my raked ceiling home.
Not sure what people are complaining about with the temperature control mine starts up full blast as the room heats flame goes down ant it seems to keep a constant heat.
Only issue is the clock, too comlicated to set up the timer, finally managed to set the actual time and then gave up.
In summary heater is excellent and i would recommend it. Hopefully there are no gremlins lurking that have affected other referrs.
Also after readin the reviews against my better judgement i took out an extended warranty from the Good Guys at Hectorville who gave me an excellent price.

I am having trouble getting the current temperature to stop rising, I have the heater on Gas/Econ with the Set button at 16, however the current temp keeps going up and tonight I was so hot when it reached 23 I had to turn the heater off. Any clues as to what I am doing wrong. A bit worried also by the lack of good reviews, I do hope that everything goes well with my new investment.

This to date is very good no problems and lots of heat quiet too no problems the timer is a little difficult to wrap your head around but no too hard to use when the power cuts out th clock needs to be reset but the timers stay set. You have to stay on top of cleaning the filters or codes can pop up I am told it takes some getting used to having the fan run when it is switched off to cool itself off.
Very Happy

Purchased the Ultima approx 3 years ago, has an error code 70 which I found out it's got something to do with a faulty switch. (would you believe it's only 3 years old) Called the Rinnai service dept, a tech will contact me within 24 hours (great I've got a 76 year old mother at home with no heating mid winter) and got quoted a call out fee of $190 that includes the first 45 minutes labour + parts, that's close to 10% of the purchase price just to come out. Dare I say this is a common problem. Buyer BEWARE.

this heater spends more time on error codes than working I had a Vulcan for 30 years before this that never skipped a beat I would not recommend this heater to anyone the most unreliable fault ridden piece of equipment I have ever bought rinnai should hang their heads in shame for selling this to consumers will buy nothing with the rinnai brand on it ever again

Ive had my heater repaired well over 20 times. And it's stopped working again tonight. Biggest lemon of a heater ever. Also been informed that there are many others with the same issue.
There are many design faults with the heater, reality is its faulty.
I can't be bothered calling about the issues anymore. It's to stressful. I would just hate for someone else to waste their hard earned money on this heater.

every year something always seems to break down on my Ultima II. Have it serviced evey 12 months but doesnt seem to help at all. Latest issue was combustion fan, which was replaced may 2016, heater not used since november 2016, coming up error code 61, tech just left, may now be the wiring or the circuit board, has to order and try to see. just with the fan last year and now this bill looking to be approx $700 plus, has cost me more to keep repairing than what l paid for it. was meant to be such a great heater and so energy efficient. yeah right.

I am freezing at home with a code 12. I had it serviced this year but nothing seems to help. I did not expect to have to pay two lots of $195.00 plus parts in the same year. How can a pensioner keep warm. This situation is too much to take. I think one service per year should take care of things

OMG..Every year code 12 and shuts off . costing a fortune since first purchased having to have it cleaned/serviced. I brought a Rinnai because they are suppose to be a reputable brand instead I think I have a lemon. At 12 months old it started now it is costing a min of $195 for call out to fix. Rinnai what is going on we are a family that just cannot afford this just to maintain a heater. What has happened to one of the once respected brands in Australia.. So upset and would now never recommend them. We are now all freezing our butts off.. Thank's Rinnai for letting us down.
Regards Linda