Jandy Pool Heater FAULT-CHECK IGN CONTROL Error Code

Updated 2026-08-29 · review status: manual-verified Last verified: 2026-08-29

Quick answer

Ignition Control System Fault Ignition control system has detected a problem preventing normal operation. Broken/pinched air pressure switch tubing, fan not operating, air flow restricted, broken igniter, low gas pressure, no flame at burner. Check air pressure switch tubing. Verify fan operation. Check igniter. Verify gas supply pressure and line sizing.

Severity: high · DIY difficulty: intermediate

Safety

TBD - must be written per-code before publish

What FAULT-CHECK IGN CONTROL means

Ignition Control System Fault Ignition control system has detected a problem preventing normal operation. Broken/pinched air pressure switch tubing, fan not operating, air flow restricted, broken igniter, low gas pressure, no flame at burner. Check air pressure switch tubing. Verify fan operation. Check igniter. Verify gas supply pressure and line sizing.

Code meaning varies by series

  • JXi 200/260/400 & LXi 250/400: FAULT-CHECK IGN CONTROL: ignition control system fault - broken/pinched air pressure switch tubing, fan not operating or running slow, restricted air flow, broken igniter, low gas supply, or no flame at burner.

Causes, ranked

  1. 1. Broken, split, pinched or disconnected air pressure switch tubing. occasional pro-only

    Check:

    Fix:

  2. 2. Fan not operating. occasional pro-only

    Check:

    Fix:

  3. 3. Air flow restricted at intake or discharge. occasional pro-only

    Check:

    Fix:

  4. 4. Broken igniter. occasional pro-only

    Check:

    Fix:

  5. 5. Low gas supply pressure/volume. occasional pro-only

    Check:

    Fix:

  6. 6. No flame at burner. occasional pro-only

    Check:

    Fix:

Parts & supplies for Jandy Pool Heater: filters, control boards, sensors, and common replacement parts.

HVACDirect →  ·  Amazon →

Commonly searched as: "jandy fault-check ign control" · "jandy error code fault-check ign control" · "jandy air conditioner fault-check ign control"

Sources

  • PoolDial error-code reference (manual-backed) — verified 2026-08-29
  • Jandy JXi Gas-Fired Pool and Spa Heater Installation & Operation Manual (Section 10.2 Service Diagnostic Messages, 10.3 Ignition Control LED Service Codes) — verified 2026-08-29
  • PoolDial Jandy JXi troubleshooting guide (fault-code table) — verified 2026-08-29