Heater kept shutting off. It was the filter, not the heater. They cleaned it, showed us the pressure before and after, and the heater has run all winter since.

Pool heater repair in Winter Park
Most heater faults are flow faults. We check the water side before we price a part.
Signs you need it
When to call about heater repair
Lights, then shuts off
It’s often protecting itself from low flow.
An error code on the panel
The code says which condition it didn’t like.
Water never gets warm
A pump schedule too slow for the flow switch.
How we do it
The honest version of heater repair
Most heater calls are flow calls
A dirty filter, a closed valve or a failing pump starves the heater, and the flow switch shuts it down. The heater is doing its job. That’s a filter service or a valve, not a heater.
What ruins an exchanger, and how you avoid it
Water that runs acidic eats the copper in the heat exchanger from the inside, and the failure shows up as a leak years later. Balanced water is heater maintenance, which is why our chemistry report and our heater work are the same conversation.
Gas, safely
Gas pressure and venting are checked, not assumed. If something is outside what the manufacturer allows, we stop and tell you rather than getting it lit.
Step by step
What happens on the visit
Read the code
The heater tells us what it didn’t like.
Check the flow
Filter pressure, valves and pump.
Check gas and venting
Measured, not assumed.
Quote the part, if any
In writing, before we order it.
What it costs
What decides the price
No surprise lines. Every job is quoted in writing, and nothing is done until you reply.
What we look at
- The price to find the fault, told before we start
- Whether it comes off the repair if you go ahead
- Any part, quoted in writing first
How you’re quoted
In writing, with the reading or the pressure that made us recommend it. Approve all of it, some of it, or none of it.
If the fault is flow rather than the heater, you pay for the filter or valve fix, not a heater part.
Reviews
What customers say about our heater repair
Two other companies quoted me a new variable-speed pump. Sandhill found an air leak at the lid o-ring and fixed it that afternoon for the price of the part and the visit. I won't use anyone else.
Straight answers
Heater repair: questions
Why does my pool heater keep shutting off?
Usually low flow: a dirty filter, a closed valve or a pump schedule too slow for the flow switch. The heater is protecting itself.
Should I repair or replace an old heater?
It depends on the heat exchanger. If it’s sound, most faults are worth repairing; if it’s eaten through, we’ll show you and quote a replacement.
Do you work on gas heaters and heat pumps?
Yes, both.
Get a straight answer about your pool.
Tell us what it is doing. If it can wait, we’ll say so, and if it can’t, we’ll say that too.