E8
Marey Gas Valve / Proportional Valve Fault

Display shows E8; heater may shut down or fail to modulate power correctly.

Advertisements

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.

Advertisements

Possible Causes

Defective gas valve coil, Loose gas valve wiring, Blocked gas valve inlet screen, Control board not sending correct signal to valve

How to Fix / Troubleshooting

Safety first: Turn OFF gas and electrical power. Working on gas valves should be done by qualified personnel; improper handling can cause leaks or fire.

Basic checks:

  • Inspect wiring: Remove the front cover and locate the gas valve assembly. Verify that all electrical connectors are firmly attached and wires are not damaged.
  • Check for contamination: Some valves have an inlet screen; if accessible, inspect for debris. Do not disassemble the valve body unless you are trained.
  • Reset and test: Restore power and gas, then open a hot tap. If E8 reappears immediately, the gas valve or control board may be faulty.

When to call a technician: Gas valve testing and replacement require leak checks and combustion verification. Contact a licensed gas technician or Marey-authorized service center.

Advertisements

Repair Difficulty

Professional Required 5/5

Required Part

Gas Control Valve Assembly (Marey proportional gas valve)
Check Price on Amazon

We may earn a commission from links on this page.

Advertisements