Why do I not have hot water?
May, June and July are the coldest months on the Gold Coast, and no-one wants to start the day with a cold shower in winter. Unluckily for some clients of Whywait Plumbing who are not Service Partners it is in these months they go to the shower and question why do I not have hot water?
Unfortunately, hot water systems are a case of out of sight out of mind. Continually where hot water systems are concerned, there were warning signs that there was a problem. Over the summer months, hot water problems are overlooked as the demand for higher temperature; hot water is not a critical consideration.
Several warning bulletins in Queensland have been issued by the QBCC and Queensland Health advising homeowners that their hot water systems need to be maintained and serviced frequently.
AS/NZS 3500.4:2018 Heated Water Services
The Australian standard that all hot water installation is based around is AS/NZS 3500.4:2018 Heated water services that are an integral part of the National Construction Code of Australia issued by the Australian Building Codes Board and it is all legal requirements in Queensland.
In AS/NZS 3500.4:2018 there is Appendix M which provides guidelines for the operation and maintenance of your hot water system which is below:
This Appendix provides guidelines for the operation and maintenance of a heated water system.
In order to ensure maximum performance and length of operation, water heaters should be inspected periodically.
M3 MAINTENANCE OF HEATED WATER SERVICES
Heated water services should be maintained in accordance with the following:
(a) Water treatment units: Where installed, water treatment units should be inspected periodically to ensure proper operation.
(b) Water vessels and tanks: All vessels and tanks should be inspected and cleaned periodically, and in accordance with any requirements of the regulatory authority.
NOTE: The frequency of periodic cleaning depends upon the quality of the supply water, design, materials of construction and the pipe system. Combinations of materials giving rise to corrosion should be avoided.
(c) Valves: The following valves should be inspected periodically to ensure proper operation:
(i) Temperature/pressure-relief valves.
(ii) Expansion control valves.
(iii) Thermostatic mixing valves.
(iv) Tempering valves.
(v) Other associated valves/devices.
(d) The requirements of AS/NZS 3666.2, where applicable.
Common reasons for why do I not have hot water
Below are listed the most common reasons we attend to clients jobs who call up to as why do I not have hot water? Listed are elementary troubleshooting ideas that you can undertake yourself to resolve or understand why your hot water is cold:
- blown fuse or circuit breaker – replace the fuse or reset the circuit breaker and if it blows again it’s probable there is a fault with your element or thermostat, and you need to call Whywait out to repair
- Energex relay switch failure – this is not the easiest to detect but if you are on off-peak rates and there are no obvious electrical faults or water leaks then its worth a phone call to your energy supplier to check whether the relay switch has failed to activate in your area
- defective relief valve – most relief valves on the side of the HWS only have a life span of around 3-5 years. Still, they can jam open so first check if you see water running from it by pulling the lever up and then easing back down again. If water continues to run then you need to call Whywait out to service the unit
- no water at all – this is when you wake up turn the tap on and cold water flows, but there is no flow from the hot water. Frequently this a failure of the non-return or isolating valve and a quick way to check is to turn the handle on the valve all the way off and then all the way back on. In many cases, the hot water will simply begin to flow again. However, if there is still no flow you need to call Whywait out for repairs
- water fluctuation from hot to cold – there are several reasons for this occurring, but the most common is a faulty tempering valve. There is nothing you can do to solve fluctuation other than call Whywait and read our information on tempering valves
- water leaking from hot water tank – there is only a maximum of 7 possible points on an HWS tank where there are joints that can possibly leak. Only 2 of those are concealed in the housing so if the water is leaking from the tank and its not from the visible water connections you need to call Whywait for service to check the HWS. In all likelihood, if the hot water tank is more than ten years old then its a 50/50 chance you need a new one installed
The above reasons are the most common problems you will experience with why do I not have hot water. As you can see above, there are only a few simple DIY solutions when you have no hot water.
A word of warning though. Please never open up the housing near the bottom of the tank where the electrical connections are as they are all live wires inside there and therefore very, very dangerous.
Whether you have a solar, heat pump, gas or electric hot water system they do need periodic maintenance so for all hot water problems call Whywait Plumbing now on (07) 5580 4311 as we guarantee a same-day rapid response for hot water problems.
Google Plumbing & Dr Google are both like your drunk friend – dramatic & unreliable.
Google Plumbing has no Queensland plumbing licence issued by the QBCC. Likewise, Dr Google has no registration as a medical practitioner issued by the Australian Health Practitioner Regulation Agency (AHPRA) to ensure the delivery of safe and competent health services.
As good as Google can be for searching everything and anything I guarantee no-one at Google ever completed a plumbing apprenticeship or a medical degree or an electrical apprenticeship.
I was chatting with my GP recently, and she voiced her frustrations with patients that Google their symptoms and then make an appointment to see her. Almost invariably, Dr Google is wrong. Usually, the patient has typed in symptoms that frequently give an utterly incorrect diagnosis of multiple possible ailments. She said even more frustrating is that she then spends most of the appointment convincing them Dr Google was wrong.
She was so happy when I told her as plumbers we go through exactly the same issues daily. Everyone I know that is in a service industry that has a consumer focus has the same problems and frustrations of being an instant expert thanks to Dr Google or Google Plumbing or Google Electrical.
We all agree Google is excellent, especially for product searches. But when you are in business, it can also be incredibly frustrating when clients tell you they have Googled the problem and you are wrong. Ultimately for doctors or plumbers or electricians, all we can do is diagnose the issues based on the information presented and go through a process of elimination of possible causes.
The headline above comparing Dr Google to a drunk friend I just had to adapt and use after I saw it in a column by Tony Shepherd of The Adelaide Advertiser just after discussing Dr Google with my GP. I must admit it amused me as the description is perfect – dramatic and unreliable. You can read the full column by clicking here as it is a great read. The first lines are “Cyberchondriacs, step away from the search engine. Online symptom checkers are almost always wrong and should never replace a real medical professional, writes Tory Shepherd.”
This advice equally applies to plumbing because it can be difficult enough to diagnose plumbing problems when on site let alone on a computer or over the phone. As I continually reiterate no professional plumber can diagnose issues over the phone or give you an accurate price. There is only one way to diagnose plumbing problems, and that’s by having a real plumber on-site to investigate. Even then, complex issues become a process of elimination.
From the plumbing and ultimately health perspective, the most frightening issue we’ve seen with COVID-19 is all of the online suggestions on DIY installations of bidet seats and douche sprays. Google searches during the “toilet paper crisis” increased tenfold for bidet seats due to multiple social media posts and newspaper articles on so-called alternate toileting devices. Google will only ever give you generalised answers that are tailored to you as Google tracks you online with artificial intelligence.
Tony Shepherd correctly points out – “Maybe it’s best to think of Google not as a medical professional but as Librarian Google, who holds plenty of information and might be able to help you find it, but might also be miffed at the amount of noise you make so just points you in the general direction of some stuff.”
My favourite lines after that are – “Or Friend Google who, after three champagnes, will tell you everything’s going to be great, but at 2 am starts crying into their whisky about how you’re going to die.”
Those lines above sum up precisely the daily frustrations that so many consumer-focused service businesses experience. The old saying about computers of rubbish in, rubbish out is correct. The flawed Google searches of an inexperience person create multiple issues as nonsense input into a Google search will guarantee nonsense results.
Ultimately Google is a tool or research assistant that can help you put things together in a logical manner or can throw a real spanner in the works. A Google search cannot replace a doctor or an electrician or a plumber, no matter how good Google artificial intelligence is.