how-to
Solar Pool Heating System: Fix Leaks and Restore Heat
Last Updated: October 23, 2026
Quick Summary
A solar pool heating system that stops warming the water usually has a failed pump, stuck diverter valve, leaking collector, cracked header, or bad controller. We check the pump, valve, controller, filter and roof for wet stains first, then repair or replace the collector based on its age and warranty.
- A leaking collector usually means a cracked header or a split panel from UV damage or a freeze night.
- Repair usually wins when panels are under 12 years old and the damage is one cracked header or fitting.
- Heliocol's warranty is 12 years when an authorized dealer installs it and 8 years when it isn't.
- Don't patch a cracked header with sealant; it fails again fast and can dump water on your roof deck.
- Stop and call if water pours off the roof, a panel hangs loose after a storm, or the pump won't prime.
Table of Contents
- Why Your Solar Pool Heating System Isn't Working
- Solar Pool Heater Leaking or Not Heating? Check These First
- Repair vs. Solar Pool Collector Replacement
- When to Stop and Call
- Frequently Asked Questions
Why Your Solar Pool Heating System Isn't Working
If your solar pool heating system stopped warming the water, it's usually a failed pump, stuck diverter valve, leaking collector, cracked header, or bad controller. We handle these calls across Palm Beach and Broward counties every week.
Solar Pool Heater Leaking or Not Heating? Check These First
- Pump. Not running means no flow, no heat.
- Diverter valve. Stuck, and water bypasses the panels.
- Controller. A bad roof sensor keeps the system off.
- Filter. Clogged cuts flow and heat.
- Leaks. Wet roof stains or low pool level point to a leaking collector or cracked header.
A leaking collector usually means a cracked header or a split panel from UV damage or a freeze night. A system that runs but won't heat often has a valve or sensor problem, not a panel problem.
Inspection checklist: pump running and primed, filter clean, diverter valve moving freely, controller on and sensor reading, no wet stains on roof or panels, no cracked headers or fittings, roof straps and penetrations tight.
Repair vs. Solar Pool Collector Replacement
Repair usually wins when panels are under 12 years old and the damage is one cracked header or fitting. Replace when the collector is UV-brittle, leaking in several spots, or past its warranty.
Heliocol's warranty is 12 years when an authorized dealer installs it and 8 years when it isn't. Manufacturer warranty covers the collector itself; the original installer's workmanship warranty is separate, and if that installer is gone, we take over the system and its warranty.
When to Stop and Call
Stop and call us if you see water pouring off the roof, a panel hanging loose after a storm, or a pump that won't prime. Don't keep running a leaking system. It can damage your roof.
We serve Boca Raton, Parkland, Coral Springs, Palm Beach Gardens, and all of Palm Beach and Broward counties. We're a family company: the owner answers the phone, and the people who quote your job are the people who service it.
Broward: 954-372-3358. Palm Beach: 772-464-2663.
Frequently Asked Questions
How do I know if my solar pool heating system is leaking?
Look for a steady drip from the roof, wet patches on the shingles, or a pool that loses water with the system running. A solar pool heater leaking at a header or fitting often shows as a visible spray or stain. Check the collector panels and roof plumbing after the pump runs. If you see water where it shouldn't be, shut the system off and call Florida Solar Pro at 772-464-2663 for a diagnostic.
Why is my solar pool heater not heating the pool?
Common causes include a failing diverter valve, air in the collectors, a dirty filter, or a pump not pushing enough flow. If the panels feel cool while the pump runs, water may not be reaching them. A solar pool heater not heating often traces to a stuck valve or a control issue. Check the valve position and filter first, then call a pro if the pool stays cold.
Can a leaking Heliocol solar collector be repaired, or do I need solar pool collector replacement?
Many leaks at headers, fittings, or straps can be repaired if the panel body is sound. Cracks across the collector tubes or UV-brittle panels usually mean solar pool collector replacement is the better call. Age and warranty matter: Heliocol panels carry a 12-year warranty when installed by an authorized dealer. We inspect first and tell you which path makes sense.
Does the Heliocol manufacturer warranty cover installation workmanship?
No. The manufacturer warranty covers the collector panels themselves. Workmanship, like roof penetrations, straps, and plumbing connections, is covered by the original installer's warranty. If that installer is gone, Florida Solar Pro can take over warranty service and handle repairs. We document what's covered and what isn't before any work starts.
How often does a solar pool heating system need maintenance?
Once a year, ideally before swim season. Solar pool heating system maintenance includes checking for leaks, testing valves and the controller, clearing debris, and inspecting roof straps and penetrations. In Palm Beach and Broward counties, UV and storms wear on panels fast. A yearly check catches small leaks before they become collector replacement jobs. Call 954-372-3358 in Broward.
