Coleman-Mach RV appliance fault codes

Verified Coleman-Mach fault codes and owner-safe guidance from official manufacturer sources.

Coleman-Mach Thermostat codes

• Coleman-Mach Er
• Coleman-Mach HI
• Coleman-Mach LO
• Coleman-Mach ELEC flashing
• Coleman-Mach DIFF flashing
• Coleman-Mach DIFF
• Coleman-Mach DIFF
• Coleman-Mach FLASHING GAS HEAT
• Coleman-Mach Solid Green
• Coleman-Mach Off
• Coleman-Mach Solid Red
• Coleman-Mach Fast Flashing Green (4 Times/Sec)
• Coleman-Mach Slow Flashing Green (1 Time/Sec)
• Coleman-Mach Alternating Red & Orange
• Coleman-Mach Alternating Green & Orange