Kyocera TASKalfa 5551ci - Abnormally High Fuser IH PWB Temperature 1 (IGBT1); Abnormally High Fuser IH PWB Temperature 2 (IGBT2)

2L6/2N6/2N5/2N4
1-4-132
6730 Abnormally high fuser IH
PWB temperature 1 (IGBT1)
The input detect temperature

Fuser IH PWB
1. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
Fuser IH PWB( YC4) and Engine PWB
(YC26)
2. If the wiring is disconnected, shorted or
grounded, replace the wiring.
3. Replace the fuser IH PWB (see page 1-
5-96).
Engine PWB 1. Check the engine software and upgrade
to the latest, if necessary.
2. Replace the engine PWB (see page 1-5-
80).
6740 Abnormally high fuser IH
PWB temperature 2 (IGBT2)
The input detect temperature

Fuser IH PWB
1. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
Fuser IH PWB( YC4) and Engine PWB
(YC26)
2. If the wiring is disconnected, shorted or
grounded, replace the wiring.
3. Replace the fuser IH PWB (see page 1-
5-96).
Engine PWB 1. Check the engine software and upgrade
to the latest, if necessary.
2. Replace the engine PWB (see page 1-5-
80).
Code Contents Related parts
Check procedures/
corrective measures