4. Common failure phenomena and troubleshooting method
Error code
Failure phenomenon
Method of exclusion
"E01" flashes
IGBT sensor open circuit
1. Check whether the IGBT sensor is open
2. Check whether the IGBT sensor terminal is loose
"E02" flashes
IGBT sensor short circuit
1. Check whether the IGBT sensor is damaged
2. Check whether the IGBT connection is short-circuited or welwed
"E03" flashes
Wire reel sensor open circuit
1. Check whether the wire reel sensor is damaged
2. Check whether the sensor cable is disconnected and whether there is
poor contact.
"E04" flashes
The wire reel temperature is high or
the wire reel sensor is short-circuited
1. Check whether the sensor is damaged
2. Check whether the sensor cable is disconnected
3. Check whether the sensor interface is loose
4. Check whether the coil disk cooling fan rotates or the speed is to slow
5. Check whether the air infet or exhaust vent is blocked
"E05" flashes
Furnace sensor open circuit
Check whether the sensor cable is disconnected and whether there is
poor contact.
"E06" flashes
Furnace sensor short circuit
1. Check whether the sensor is damaged
2. Check whether the sensor line is short-circuited
"E07" flashes
Grid voltage is too low
1. For 1.220V models, check whether the grid voltage is lower than 150V.
and for 380V models, check whether the grid voltage is lower than 350V.
2. Check whether the core power transformer is damaged
"E08" flashes
Grid voltage is too high
For 1.220V models, check whether the grid voltage is higher than 260V,
and for 380V models, check whether the grid voltage is higher than 450V.
"F" flashes
IGBT temperature is too high
1. Check whether the movement fan rotates or the spees is too slow
2. Check whether the air infet or exhaust vert is blocked
"E00" flashes
No pot or inappropriate pot
1. Check whether the wire reel and the wire reel terminal are loose.
2. Check whether the pot is severely deformed.
3. Check whether the pot material used is suiteble, whether the bottom
of the pot is seriously deformed, and whether the pot is placed in the
correct position.
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