Canon EOS C300 Mark III, Manual

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Troubleshooting
212
Troubleshooting
If you have a problem with your camera, refer to this section. Consult your dealer or a Canon Service Center if
the problem persists.
Power source
The camera will not turn on or it turns off by itself.
- The battery pack is depleted. Replace or charge the battery pack.
- Remove the battery pack and reattach it correctly.
Shortly after turning it on, the camera turns off on its own.
- You are using a battery pack that is not compatible for use with this camera. Use a recommended battery pack
(
A
229).
Cannot charge the battery pack.
- The temperature of the battery pack is outside the charging range. If the battery pack’s temperature is below 0 °C
(32 °F), warm it before charging it; if it is above 40 °C (104 °F), let the battery pack cool down before charging it.
- Charge the battery pack in temperatures between 0 °C and 40 °C (32 °F and 104 °F).
- The battery pack is faulty. Replace the battery pack.
The battery pack is depleted extremely quickly even at normal temperatures.
- Check the [
B
System Setup] status screen (
A
207) to check if the battery pack has reached the end of its battery
life. If so, buy a new battery pack.
Recording
The camera’s controls are not responsive/disabled.
- The camera grip’s plug may not be correctly connected to the camera’s GRIP terminal. Disconnect the camera grip’s
cable and then connect it again, firmly (
A
41). If you changed the angle of the camera grip, make sure you did not
partially disconnect the plug by mistake.
- When the
Q
switch is set to
C
, all buttons (or all buttons with the exception of some REC buttons) are locked
and cannot be operated. Set the
Q
switch to CAMERA. You can change which controls are locked with the
>
[
B
System Setup]
>
[Key Lock] setting.
Pressing the REC button will not start recording.
- The card is full or it already contains the maximum number of clips (999 clips). Delete some clips (
A
145) or save your
recordings and initialize the card (
A
46) to free some space. Alternatively, replace the card.
- The REC button that was used may be disabled. Change the current settings in the
>
[
B
System Setup]
>
[Camera REC Button] or [Camera Grip REC Button] setting to enable the use of the desired REC buttons.
- Power supply to the camera or the optional expansion unit has reached the level set for the power level warning
(
A
200). Check the power source.
- The camera cannot record while the [Color Correction] settings in the custom picture file (
A
134) are being adjusted
(except for the [Revision Level]/[Revision Phase] settings).
The point where the REC button was pressed does not match the beginning/end of the recording.
- There may be a slight interval between pressing the REC button and the actual start/end of recording. This is not a
malfunction.
The camera will not focus.
- The camera may not be able to focus on certain subjects using autofocus. Focus manually (
A
81).
- When the AF mode is set to AF-boosted MF, start focusing manually until the AF frame changes to white (automatic
adjustment range).
- The lens is dirty. Clean the lens with a soft lens-cleaning cloth.
When a subject flits across in front of the lens, the image appears slightly bent.
- This is a phenomenon typical of CMOS image sensors. When a subject crosses very quickly in front of the camera, the
image may seem slightly warped. This is not a malfunction.