Instruction manual

Page 15
SECTION VII: TROUBLESHOOTING
SECTION VI: MAINTENANCE (cont.)
FLUSH THE TANK
The solar storage tank is glass lined. Elements in the water such as lime, iron and other
minerals may accumulate in the tank. It is recommended that the tank be drained and
flushed thoroughly once a year to prevent buildup.
SOLAR CONTROLLER AND COLLECTOR PANELS
The solar controller and collector panel manufacturer may have a recommended
maintenance procedure. Refer to the instruction manual that was received with the solar
equipment.
Undersized solar collectors Calculate proper collector surface area, orientation, and
available sunlight.
T&P gushing water Excessive water temp. (above 210 °F) Adjust or replace thermostat and T&P valve
T&P Valve dripping water Excessive water pressure (above 150 psi) Check incoming water supply pressure; closed loop
system requires expansion tank
Reduction in recovery Dip tube broken or compromised by high
chlorine in water
Replace dip tube
Inlet/Outlet fitting corrosion Galvanic corrosion of dissimilar metals Install dielectric unions
Rotten egg odor Hydrogen Sulfide Flush tank with chlorine solution and install aluminum
anode rod(s)
Air from hot water fixture Electrolysis or air introduced by water supply Properly ground heater & replace anode rod(s). Check
well pump system.
Insufficient hot water
Rust staining; bad taste and odor in
water
Iron/minerals in water supply Filtration
Scale, hard white particles from
faucets, popping sound from tank
Lime, water hardness above 7 grains-120ppm Water treatment; softener; etc.
Peak use of hot water is greater than tank
storage capacity
Circulator does not operate
Check solar controller
Replace as necessary
Faulty tank thermostat Replace thermostat
Water at faucet too hot Thermostat set too high Lower thermostat setting to safe level
Tempering valve not properly set or defective Check manufacturers instructions
Determine peak usage, compare to tank capacity, and
add additional storage (storage tank) if necessary
Improper thermostat setting Turn thermostat to safe temperature setting
Electrical problem (relay, wiring, etc.) Check fuse and replace
Check circuit breaker and reset (if applicable)
Check power supply
Thermostat set too low Raise thermostat setting to safe level. See Section V
Check power supply
PROBLEM CAUSE SOLUTION
ECO on thermostat tripped Determine cause of ECO trip (solar heat or electric
element). Correct or replace as necessary. Reset
thermostat (depress red button).
No hot water at faucet