EXTREME HEAT SOLAR
15
100
l
NO PRESSURE EVACUATED TUBE SYSTEM
8
Troubleshooting
Not sufficient hot water:
During cloudy or rainy days, there is not sufficient sun energy to heat the water of the solar
water heater. Switch on the backup element till the water has reached the required
temperature.
Water dripping from the overflow port:
During extreme temperature variation, the water in the main tank expand and can even exit
from the overflow valve. This happens especially when very little or no hot water is used for a
few days. This is normal and will stop when hot water is being used.
When water is being used and excess water is released through the overflow port, it could be
due to dirt in the float valve located in the cistern tank. The cistern tank can be opened and the
seal be cleaned by a qualified installer.
Pressure valve towards the solar water heater faulty. The pressure regulator valve supplying
water to the solar water heater can become faulty and allow high pressure water to pass to the
inlet of the solar water heater, This usually happens during night time when the water pressure
is at its highest level.
9
Maintenance and cleaning
The EHS solar water heater is designed in a way that very little maintenance is needed. Natural rain
normally cleans the collector from any dust. When heavy bird life is present close to where the solar
water heater is installed, more regular cleaning of the collector is required.
Maintenance that should be done once every 3 - 6 months:
Check all pipes and fittings for leaks and corrosion of the thermal isolation material
Check if overflow port is properly connected to overflow pipe to avoid water from dripping on
the cistern or main storage tank.
Inspect for any leaks between the cistern tank and main tank.
Check for any cracks in the vacuum tubes
Clean the vacuum tubes with a wet cloth when needed.
Clean the filter at the inlet of the cistern tank only when water flow into the tank is not
adequate.
10
Warrantee
The EHS solar water heater has a 2 year warrantee. The conditions of the warrantee are as follow:
10.1
Warrantee nature
The EHS solar water heater and components thereof are warranted against defective factory
parts or factory workmanship. This warrantee is subjected to the water quality supplied to the
solar water heater equivalent to water quality in major metropolitan areas classified for
domestic water use (and below 600 ppm TDS)
Damage resulting from improper transportation or installation is not covered by this warrantee.
The warrantee is only valid upon presentation of the proof of purchase and subject to
compliance with the installation, maintenance and service plan as described in this document.
EHS reserves the right to test the solar water heater and installation prior to any
repair/replacement claimed under this warrantee.
