Pool Heater Repair
Gas, electric, and heat pump pool heater repair across San Antonio and Houston.
Pool heaters fail for a lot of the same reasons water heaters do, and in San Antonio and Houston, the same local conditions that wear out your water heater are working on your pool equipment too.
Types of Pool Heaters We Service
- Gas pool heaters
- Electric resistance pool heaters
- Heat pump pool heaters
- Solar assisted pool heating systems
San Antonio’s Hard Water Reaches Your Pool Heater Too
SAWS reports local water hardness at 15 to 21 grains per gallon, and that same mineral content that scales up a water heater tank also builds up inside a gas pool heater’s heat exchanger. Scale buildup here restricts water flow, forces the heater to work harder, and can trip high limit switches that shut the unit down as a safety measure. We see this most on gas pool heaters that have gone more than a season without a flush.
Houston Humidity and Storm Season Hit Pool Equipment Hard
Pool heaters sit outside year round in Houston, and the humidity here, often 75 to 90 percent, accelerates corrosion on cabinets, wiring connections, and heat pump components faster than it would in a drier climate. Hurricane season adds another layer, a heat pump or electric pool heater left running through a power surge during storm restoration can suffer the same kind of electrical damage we see in water heaters after events like Hurricane Beryl. On the rare occasion Houston sees a hard freeze, exposed pool heater plumbing and heat pumps not rated for freezing temperatures are also at risk, the same vulnerability that caused so much water heater damage during Winter Storm Uri in February 2021.
Common Pool Heater Problems We Fix
| Problem | Most Likely Cause | Typical Cost to Fix |
|---|---|---|
| Heater won’t ignite | Pilot, ignitor, or gas supply issue | $150 to $400 |
| Pool water not heating enough | Scale buildup in heat exchanger (common in San Antonio) | $200 to $400 flush |
| Heater shuts off shortly after starting | High limit switch tripping from restricted flow | $150 to $350 |
| Heat pump not producing heat | Refrigerant, compressor, or corrosion related fault | Diagnosed on site |
| Corroded cabinet or wiring | Humidity exposure over time (common in Houston) | Varies by extent of damage |
Maintenance That Prevents Most Calls
In San Antonio, we recommend flushing a gas pool heater’s heat exchanger at the start of pool season and checking again mid summer given the water hardness here. In Houston, a pre hurricane season check of electrical connections and a pre winter check of exposed plumbing catches most of the problems this city’s weather causes before they become a repair call.
Helpful Articles
Frequently Asked Questions
How much does pool heater repair cost in Texas?
Most repairs run $200 to $600 depending on the part. Heat exchanger replacement runs $600 to $1,200.
Why won’t my pool heater ignite?
Common causes include a pilot or ignition control issue, low gas supply, or a tripped pressure switch due to inadequate water flow.
Do you service heat pump pool heaters?
Yes, we service gas, electric, and heat pump pool heaters from all major brands.
Does hard water affect pool heaters like it affects household water heaters?
Yes. The same calcium and magnesium in Texas water causes scale buildup in pool heater heat exchangers over time, reducing efficiency.
Where We Work
We service pool heaters across two Texas cities: San Antonio and Houston.
Pool Heater Not Working? Call Now
Licensed through TSBPE. Insured. Same day service across Texas. Email info@waterheaterservises.com anytime.