Unit displays Code 52; ignition may be erratic
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.
Possible Causes
How to Fix / Troubleshooting
Safety first: Turn OFF gas and power. Gas valve diagnostics should be performed by qualified personnel.
Steps to check:
- Inspect connectors: Ensure the modulation valve connector is firmly attached and wiring is not damaged.
- Reset and test: Restore power and gas and reset the unit. Observe if the code reappears.
When to call a professional: A technician should measure valve coil resistance, verify control signals, and replace the modulating gas valve or control board as needed.
Repair Difficulty
Required Part
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