Pentair Pentair MasterTemp 400,000 BTU Gas Pool/Spa Heater r14 Error Fix: Flame Rollout — Secondary

The secondary flame rollout switch has tripped. This is a second-level safety — the MasterTemp has two rollout switches for redundancy. If r14 appears, the combustion problem is confirmed by both switches. Same causes and severity as r13. Both rollout switches must be manually reset. Professional inspection of the heat exchanger and combustion system is mandatory before the heater can be safely operated.

critical2 fixes available✨ Free fix available

Quick Answer

Error r14 on the Pentair Pentair MasterTemp 400,000 BTU Gas Pool/Spa Heater means: Flame Rollout — Secondary. The top-ranked community fix is “Comprehensive Heat Exchanger and Combustion System Inspection and Repair” (hard difficulty, ~150 min, DIY cost: $0-$60). 2 community-ranked fixes available below.

Published February 2026 · 2 fixes · pool heater

Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.

When to Call a Professional

While many pool heater repairs can be done safely at home, consider hiring a qualified technician if:

The repair involves electrical wiring, gas lines, or refrigerant
You've tried the top-ranked fix and the error persists
You smell gas, see sparking, or notice water leaking
The repair requires specialized tools you don't have
Your appliance is still under manufacturer warranty

Average professional repair cost for this issue: $350-$600.

Other Pentair Pentair MasterTemp 400,000 BTU Gas Pool/Spa Heater Error Codes

AFS

Air Flow Switch Fault

Auto Gas Shutoff

Board Error

Burner Tray Obstruction

2 fixes

BYPASS VALVE

Bypass Valve Adjustment Needed

Combustion Fan Fault

Ignition Failure

Ignition Lockout

People Also Ask About Pentair Pentair MasterTemp 400,000 BTU Gas Pool/Spa Heater Error r14

What does error code r14 mean on a Pentair Pentair MasterTemp 400,000 BTU Gas Pool/Spa Heater?

Error code r14 on the Pentair Pentair MasterTemp 400,000 BTU Gas Pool/Spa Heater means: Flame Rollout — Secondary. The secondary flame rollout switch has tripped. This is a second-level safety — the MasterTemp has two rollout switches for redundancy. If r14 appears, the combustion problem is confirmed by both switches. Same causes and severity as r13. Both rollout switches must be manually reset. Professional inspection of the heat exchanger and combustion system is mandatory before the heater can be safely operated.

How do I fix error code r14 on my Pentair Pentair MasterTemp 400,000 BTU Gas Pool/Spa Heater?

The most successful fix is "Comprehensive Heat Exchanger and Combustion System Inspection and Repair" (hard difficulty, ~150 minutes). Estimated DIY cost: $0-$60. HomeMD has 2 community-ranked fixes for this error.

Is error code r14 on a Pentair Pentair MasterTemp 400,000 BTU Gas Pool/Spa Heater serious?

This error is rated critical severity. It is generally not urgent and can often be resolved with a simple DIY fix.

Can I fix Pentair Pentair MasterTemp 400,000 BTU Gas Pool/Spa Heater error r14 myself?

Yes — the top-ranked community fix ("Comprehensive Heat Exchanger and Combustion System Inspection and Repair") is rated hard difficulty and takes about 150 minutes. Tools needed: T20 Torx screwdriver, Multimeter, Flashlight, Inspection mirror, Soft brush, Vacuum.

How much does it cost to repair Pentair Pentair MasterTemp 400,000 BTU Gas Pool/Spa Heater error r14?

DIY cost: $0-$60. Professional repair typically costs $350-$600. Many homeowners save money by trying the top-ranked community fix first.

What other error codes does the Pentair Pentair MasterTemp 400,000 BTU Gas Pool/Spa Heater have?

The Pentair Pentair MasterTemp 400,000 BTU Gas Pool/Spa Heater has 8 other known error codes, including: AFS (Air Flow Switch Fault), AGS (Auto Gas Shutoff), bd (Board Error), BURNER DEBRIS (Burner Tray Obstruction), BYPASS VALVE (Bypass Valve Adjustment Needed), and 3 more.

What other error codes does the Pentair Pentair MasterTemp 400,000 BTU Gas Pool/Spa Heater have?

The Pentair Pentair MasterTemp 400,000 BTU Gas Pool/Spa Heater has 8 other known error codes:

AFS — Air Flow Switch Fault (2 fixes)
AGS — Auto Gas Shutoff (2 fixes)
bd — Board Error (2 fixes)
BURNER DEBRIS — Burner Tray Obstruction (2 fixes)
BYPASS VALVE — Bypass Valve Adjustment Needed (2 fixes)
CF — Combustion Fan Fault (2 fixes)
E01 — Ignition Failure (2 fixes)
E02 — Ignition Lockout (2 fixes)

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