E13
Poolworld
Gas Valve Circuit Fault
Heater displays E13; fan may run but burner does not light
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Open or shorted gas valve coil, Loose gas valve wiring, Faulty ignition control board gas output, Blown internal fuse on control board
How to Fix / Troubleshooting
Safety first: Turn OFF power and gas. Only qualified personnel should work on gas valve circuits.
- Inspect wiring: Check the harness from the ignition control board to the gas valve. Ensure connectors are tight and wires are not pinched or burned.
- Check for 24 V output: With a qualified technician and meter, verify that the control board sends the correct voltage to the gas valve during ignition. No voltage indicates a control issue.
- Listen for valve click: During a call for heat, listen for a distinct click from the gas valve. No click may indicate a failed coil.
- Replace components as needed: If the gas valve coil is open or shorted, replace the gas valve with a Poolworld-approved part. If the board does not energize a known-good valve, the ignition control board may need replacement.
Warning: After any gas valve work, perform a leak test with an approved leak detection solution before restoring service.
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Repair Difficulty
Professional Required
5/5
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