Before You Call For Service - FAFCO ST Installation Manual

BEFORE YOU CALL FOR SERVICE

If The System Does Not Appear To Be Heating The Pool
Are the filter and leaf trap clean?
1.
2. Is the timer set from about 9 a.m. until about 5 p.m. or for at least 8 hours of operation during solar
hours?
3. Have you been refilling the pool with a lot of cold water lately?
4. Has the weather been marginal?
5. If nighttime temperatures are very low, are you using a pool blanket to retain
the heat provided by the solar system during the day?
6. Are the panels operating "cool" to the touch on a sunny day? If not, you are not getting water to
the panels, so check your valve position.
If There Are No Initial Bubbles When Solar Turns On
1. Ensure that the pump is running.
2. Check the isolation valves to make sure they are open.
3. Make sure the control valve is in the correct position.
Tiny Champagne Bubbles
If tiny champagne bubbles continue past the initial purging of the panels (3-5 minutes), this may be
an indication that the water circulation through the panels has been reduced to the point where the
vacuum relief valve is admitting air either continuously or intermittently. Check the pump, filter, and
leaf trap for cleanliness and proper operation. If the bubbles continue with the solar turned off, check
the piping leading to the pump for a suction side leak.
Some small bubbles may always be discharged into the pool due to the particular operating
characteristics of the individual system. They do not affect the operation of the system nor impair
the proper function of any other pool equipment.
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