F6 - INLET OVERHEAT
Ambient temperature has exceeded a safe operating temperature of 115F(46C) and is beyond the operating
limits of the Heater. Operating Fault Code will flash when ambient temperature exceeds 104F (40C).
Is Heater producing heat and
None. This is normal operation. Heater
Operating Fault Code flashing?
has switched to low mode to allow ambient
temperature to drop below 104F (40C).
Operate Heater in Low mode
Check to ensure that Heater
Install ducting correctly to Heater. Ensure
ducting is properly installed
ventilation air blows away from Heater to
ensure proper air mixing.
Is Heater in Purge mode and
None. Ambient temperature is above
error code displayed?
131F (55C) and has turned itself off.
Purge Heater at least 3 times.
Restart Heater when inside vehicle ambient
temperature has cooled down.
Reverse air flow conditions
Install ducting correctly.