HELIOCOL RESIDENTIAL INSTALLATION MANUAL
39
TROUBLESHOOTING
PROBLEM
CAUSE
SOLUTION
THERE ARE AIR BUBBLES IN
THE POOL WHEN THE SOLAR
HEATER IS OPERATING
1. If the pump is making more noise,
there may be air coming into the
pump through an air leak on the
suction side of the pump due to the
pump working harder to move the
water through the solar system.
A. Be sure pump trap lid is on tight.
B. Check the “O” ring on the pump
trap lid. clean, lubricate, or replace
as needed.
C. If you have a suction type pool
cleaner, remove it. If this improves
the air bubbles, only use it when not
operating the solar.
D. If you have a clear lid on the pump
and can see air bubbles in the trap,
run water over the lid and each joint
individually to see if the air bubbles
will clear up using a garden hose. If
there is not a clear lid, listen to pump
noise for a smoother operation,
repair any air leaks.
2. If the vacuum breaker is installed
on the roof, there is not enough
water pressure in the solar system to
keep the vacuum relief valve closed
and it is allowing air to be drawn into
the water as it flows by the valve.
A. Be sure filter is clean. Backwash
to reduce pressure.
B. If it’s an older system, check for
debris or scale in the mouth of the
vacuum relief valve and clean if
necessary.
C. Use the (2-2015-019) on the return
line to throttle the flow back to
produce more back pressure on the
system.