No solar hot water when it’s cloudy?
We received a call recently from a customer located at Port Hacking in the Sutherland Shire Sydney who was experiencing intermittent solar hot water supply. They had trouble free hot water when the sun was shining but, when skies were cloudy or there were a few days of low sunshine, they very quickly ran out of hot water or had none at all.
Why don’t I have hot water when it rains?
First we need to explain briefly how solar hot water systems work… Solar water heaters absorbing energy from the sun’s rays in the roof mounted solar collectors and transfer this to heat water stored in a storage tank. For times when skies are cloudy or there are prolonged periods of low sunshine, all solar hot water systems come with a gas or electric back-up system. The backup system continues to supply hot water when the sun’s energy isn’t available or strong enough.
Solar hot water system backup repairs
When customers are experiencing hot water when the sun is shining but running out when it’s cloudy there is almost always a problem isolated to the backup system. For our Sutherland Shire customer, a plague of ants had shorted out the circuit that ran the electric backup system – see photo below. After a few days of cloudy skies and rainy weather, the backup system hadn’t been kicking in to compensate for low levels of sunshine and they ran out of hot water.
Our trucks carry thousands of replacement parts for all solar hot water systems so it was a quick and relatively simple repair. The customer should now experience trouble free solar hot water during all weather patterns.
Read about other problems ants in your hot water system can cause »
Problems with your solar hot water gas or electric backup boost system?
We are the Sydney solar hot water experts. We are authorised installers and repair technicians for all the solar hot water heater brands including Solahart, Rheem, Edwards, Apricus, Quantum and many more. Our trucks are on the road right now stocked with thousands of spare parts to repair your solar hot water gas or electric boost backup. Call us on 1800 266 999 or send a text to 0410 693 532 for fast solar hot water service.
Helpful solar hot water links : Browse our hot water tips you can make an informed decision about switching to solar.
- How solar hot water works »
- Types of solar water heaters »
- Small Scale Technology Certificates (STCs) »
- The benefits of switching to solar »
- Should you switch to solar hot water?
- How you can save money on your hot water bills »
- Which hot water system is cheapest to run? Solar, gas or electric »
- How reliable is solar hot water?
- No hot water when it’s cloudy?
- No solar hot water after freezing weather or in Winter »
The information on this website is of a general nature only. We do not make an warranties about the completeness, accuracy or reliability of this information or whether it is relevant to your specific hot water problem(s). For professional hot water repair advice specific to you, contact our Sydney hot water specialists direct on 1800 266 999.