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New member

Re: C4.4

Ok tanks but I changed the AVR with a new one and nothing change
Regular Contributor

Re: C4.4

You could connect a 12V battery up to the exciter and see if output voltage comes up. If it comes up then AVR must be faulty.

If no change then exciter or diodes must be faulty

New member

Re: C4.4

Already did but there’s not 24v on the regulator I believe the problem is the diods
Regular Contributor

Re: C4.4

Check the fuses on the Voltage Regulator. Check the voltage regulator is providing power to the exciter

New member

Re: C4.4

Sorry I’m no solved
New member

Re: C4.4

Hi everybody
In the last two days I have a problem with my C4.4 cat generator
The engine running good but I don’t have any power on the 3 fases L1 L2 L3
I check the power with the digital multimeter directly on the machine and I found only 18v each fases😱😱
Do you have any suggestion tanks everybody and good job
New member
Accepted Solution

C4.4