Rinnai Sunmaster tank installed as part of Hills evacuated tube solar hotwater system. Tank failed due to corrosion at cold water inlet and was replaced under warranty. Replacement tank has failed within warranty period due to corrosion at hot water inlet in the same manner as before. No advice on first warranty that our water quality was an issue. They are fitted i believe with sacrificial anodes. Warranty only covers one purchase not the quality of the product. Suspect poor quality metals being used at connection points.
Not worth wasting your money on, by something that's quality and compare warranty to purchase price.
Purchased in October 2012.
Hot Sensor Lead
The Hot Sensor Lead (20m) 31002715 has deteriorated after 5 years from the heat of the collector panels.
The 20m lead that is supplied by Rinnai is not heat rated. This is Speaker cable and not suitable for Hot Temp Probes. Silicone coated wire should be for the first meter then speaker cable (fig 8) will be fine.
There is no information in installation manual regarding the specs that the hot temp probe requires. I would like this so i can purchase a non generic brand.
Purchased in November 2014.
Reported pump 3 times in last year - it still whines all night!!
I’ve reported that the pump on our Sunmaster 26 has been running all night 3 times since we moved into our new house 18 months ago. Rinnai tell me there’s nothing wrong when there clearly is. The pump whines all night. And you can hear it from our bedroom upstairs. It’s infuriating! Our guest room is downstairs on the adjoining wall and guests complain about the noise too. I do not recommend this system at all!!!!!!
I also fail to understand why the pump runs in the middle of the night. The electricity bill probably negates the benefit of having the panel in the first place.
Rinnai please take this seriously for once and do something about it!!
Not Long Out of Warranty and Solar Panels Fail
Bought a new house in 2009 and the Rinnai Sunmaster was the system the builder had installed. Admittedly, I've have had trouble free hot water for many years, but isn't that what hot water systems are supposed to do. Anyway, about a month ago my suburb had a really severe frost and one of my solar panels failed. I came home to find water gushing out of the top of the panel and over the roof. Of course it happened on a Sunday! Couldn't get response on the Rinnai 'Hotline' so I had resort to calling a local plumber. He was sympathetic but couldn'...t come until the next day as he was booked out for the whole day. Seems there were many, many others in the same boat as me with frost affected panels. Local plumber managed to get to me on the Monday and didn't even want to look at the panels. He seemed to think it wasn't worth even getting up a ladder so he just 'capped off' the system. I am now just relying on the gas booster. 20 mins work $165. After a lot of thought I rang Rinnai. I really just wanted a second opinion from an expert. I mean, what is the point of having panels on the roof if they're not being used? I was told that I would have to wait nearly 2 weeks for someone to come out and it would cost $195. Well, o.k I guess. The system was looked at and it was found that a metal stopper/end cap had been forcible ejected from the top of a panel when the water expanded as it froze. Simple, I thought. But wait, you can't just put the stopper/cap back on, you have to buy a kit for that. Mmmm, how much for the kit and then fitting? $230. Plumber then explained that it might not be that simple. It has been his experience that I could go to the trouble and expense of getting the panel repaired and then the panel fail by cracking from next severe frost. Hang on, I thought the panels had some some kind of frost protection? He said that panels with frost protection only get installed in designated severe frost areas. These areas, I was told, are designated by the local Councils. Apparently I'm not in one of the designated areas, therefore no frost protection. In his opinion I would be better off not to bother trying to salvage the panels and just solely rely on the gas booster. Sometime in the future, when I can afford it, I will be paying someone to remove the panels and patch up the roof. Very annoying. To sum up, I'm upset that such an expensive system can fail just due to frost. I definitely wouldn't have another Sunmaster. Update: Aug 2018 It is now many, many months since I had faulty Rinnai Sunmaster tank and solar panels disconnected. I have had a plumber remove the bypassed water tank and the solar panels from the roof. I am just using the instantaneous gas hot water booster that has now been mounted on the wall. I have been reading my gas bills carefully over the past year and have honestly not noticed an increase in my gas consumption since not having the solar panels preheat the water. Seems that the solar system was not saving me any money at all. All I can assume is that the system wasn't working properly for a long time before the major fail? I guess the moral of the story is to check (not sure how?) that the system is working correctly and not assume that all is well.
Solar hot water does not save money bad water pressure after install
We have a new home . Builder installed Rinnai sunmaster SG215 with gas booster. The water pressure from garden tap is excellent . The pressure inside our house is very bad , when I have a shower and my wife turns the hot water tap in the kitchen or anywhere in the house the pressure is reduced . It takes 15minutes to fill the washing machine.
We have spoken to a person at rinnai and he said thats normal .He told us that the flow rate should be not be less than 9lts a min. Which is what we are getting. We have had plumbers out to see if they co...
Pump runs continuously
Pump runs continuously day and night, technician has been out and replaced the controller component, pump still running day and night. Technician is back today. Haven't heard outcome of today's visit yet. It seems as though this is a common problem with this unit, when I spoke with rinnai though they denied this was a common issue.
Similar Problems to others - unreliable
First, my Rinnai Sunmaster system kept turning on and off at night, cooling the water that had heated during the day - this MUST be a design fault. To defeat this, I put a timer on the pump connection. Also, after about 2 1/2 years the pump started making a rattling noise and not pumping properly. Rinnai offered to come out and "look at the problem" for several hundred dollars, even though this is, obviously, a common problem with the pump - to the extent that there's an "improved model". There should have been some sort of recall for the two c...ommon issues affecting these systems. Actually, in hindsight, in Melbourne, it's better to invest in a heat pump hot water system to run off your solar and get zero cost hot water all year. I'm sure there are solar hot water systems that work better than this one, though.
Unreliable solar hot water system
Prior to Sunmaster solar system-gas boosted installed in October 2009, I specifically requested a frost-friendly system and was assured it was frost rated. Stopped working July, 2010, September 2010, July, 2011, July 2012. To date I am still waiting 6 weeks later for the system to be repaired with frost-rated panels. Each time the panels or valves have cracked due to exteme cold weather, water pours off my roof and into the gutter - wasteful and expensive. This system is under warranty. The gas boosted hot water is efficient but never feels...hot enough, apparently set to 60 degrees. Not good enough for a solar system which cost almost $6000! When operating in summer it is energy efficient System stops operating beginning of every winter since installation (3 years). Very frustrating.
Questions & Answers
how to turn of water to taps need to change tap washer regards Peter
Hi Peter L,
Thank you for your question. Please contact our Technical team on 1300 555 545 and they can assist you further.
We have a brand new unit and we run out of hot water after 1 shower - how do we turn the thermostat up??
Hi Dirk, firstly, contact your plumper because he will know how to sort this out.
We have a tempering valve on the side of the hot water tank that allows you to adjust the temperature going into the house but that’s not going to sort out your problem.
Do you have solar panels or evacuated tubes connected to you hot water system?
Hi Dirk A,
Thank you for your question.
Please contact our Technical team on 1300 555 545 Option 3 to discuss this further.
I have a Rinnai Sunmaster 175 solar hot water system installed at my property. The pump began making noises and when I contacted Rinnai a sub contractor come out, checked it and advised that that pump needs to be replaced and is not under warranty. The pump is only under warranty for 1 year! I was also charge for the subbie to come out even though the issue wasn't fixed. The entire unit is only 2.5 years old from new! I contacted Rinnai to enquire about the statutory warranty for all products and the customer service person was not sure what I was talking about. I have checked the Consumer affairs website and in general terms it should be covered under the statutory warranty but I cannot find an exact timeframe. Can anyone here assist? It takes Rinnai days to get back to me and I do not feel I should be paying this bill!
Hi Alex J,
We have sent you a private message to discuss further.
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