How We Helped Mark Solve His Pentair Pool Heater Ignition Issue
At PoolTrouble.com, we’ve seen just about every pool problem imaginable—and often, the fix is just one virtual call away. Recently, Mark reached out after his Pentair MasterTemp pool heater refused to ignite.
The Problem: Heater Won’t Ignite
Mark described how his Pentair MasterTemp 400 was cycling but not firing up. The control board would click, the fan turned on, but the heater shut down without heating. Like many homeowners, Mark feared he’d need to replace the entire heater—an expensive mistake if the issue was simpler.
The Diagnosis: Gas Flow & Pressure Switch
During our 30-minute virtual troubleshooting session, Mark uploaded photos of his heater and showed us live video of the startup sequence. Right away, we narrowed down the issue:
✅ A faulty pressure switch was preventing ignition.
✅ His gas line pressure was also on the low end of the acceptable range.
With just a few guided tests, we confirmed that a pressure switch replacement was the most likely fix.
The Solution: Simple Replacement vs. Full Swap
Instead of spending $3,000+ on a new pool heater, Mark now knew he could replace the Pentair pressure switch for a fraction of the cost (typically under $100 for the part). We also coached him on how to talk to a local gas contractor about adjusting supply pressure if needed.
Added Value: Pool Pump Efficiency Tips
Since we solved the heater problem quickly, we used the remaining time to discuss Mark’s Pentair IntelliFlo variable speed pump. He was running it at high speed all day, racking up huge electricity bills. We walked him through a proper speed schedule to cut energy use by up to 70% per month.
Why This Matters for Pool Owners
Mark’s story highlights why virtual pool troubleshooting makes sense:
🔧 Accurate diagnosis without waiting for an on-site visit
💸 Save money by avoiding unnecessary equipment replacements
⚡ Expert advice on maximizing energy efficiency
📹 See it solved in real time via video walkthroughs
Don’t Guess—Talk to a Pool Expert Today
If your pool heater won’t ignite, your pool pump runs inefficiently, or you’re simply stuck on a pool equipment issue, we can help. Book a virtual call at PoolTrouble.com and get same-day answers from an expert.
