Why does my Canon EOS 40D camera display error-99?

Question 1

2 crwdns2873741:0crwdne2873741:0

crwdns2934195:0crwdne2934195:0 Canon EOS 40D crwdns2933315:02crwdne2933315:0

smith jones

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Dzi 2, 2019

answered Dzi 2, 2019 crwdns2933505:0crwdne2933505:0 smith jones

Question 2

5 crwdns2873741:0crwdne2873741:0

My 40D suddenly will not turn on

crwdns2934195:0crwdne2934195:0 Canon EOS 40D crwdns2933315:05crwdne2933315:0

Black Circle 79

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Dzi 21, 2025

commented Dzi 21, 2025 crwdns2933505:0crwdne2933505:0 Black Circle

Question 3

3 crwdns2873741:0crwdne2873741:0

Why does my camera turn off by itself?

crwdns2934195:0crwdne2934195:0 Canon EOS 40D crwdns2933315:03crwdne2933315:0

fmax32

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Mha 31, 2020

commented Mha 31, 2020 crwdns2933505:0crwdne2933505:0 fmax32

Question 4

2 crwdns2873741:0crwdne2873741:0

Canon40D won't fire up

Canon EOS 40D crwdns2933315:02crwdne2933315:0

Zephosk 4,7crwdns2936485:0crwdne2936485:0

crwdns2931741:0crwdne2931741:0

N'w 22, 2024

commented N'w 22, 2024 crwdns2933505:0crwdne2933505:0 Zephosk

Question 5

1 crwdns2930801:0crwdne2930801:0

Why will my flash not fire?

crwdns2934195:0crwdne2934195:0 Canon EOS 40D crwdns2933313:01crwdne2933313:0

Doug Kruse 767

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Nhl 1, 2015

answer accepted Nhl 1, 2015 crwdns2933505:0crwdne2933505:0 Doug Kruse

Question 6

0 crwdns2873741:0crwdne2873741:0

way I can't format the cf card

crwdns2934197:0crwdne2934197:0 Canon EOS 40D crwdns2933315:00crwdne2933315:0

Jose L Nava 13

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N'w 18, 2017

asked N'w 18, 2017 crwdns2933505:0crwdne2933505:0 Jose L Nava

Question 7

1 crwdns2930801:0crwdne2930801:0

What is wrong with auto focus

crwdns2934195:0crwdne2934195:0 Canon EOS 40D crwdns2933313:01crwdne2933313:0

Robin Taylor 1,5crwdns2936485:0crwdne2936485:0

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Maw 10, 2024

commented Maw 10, 2024 crwdns2933505:0crwdne2933505:0 Robin Taylor

Question 8

1 crwdns2930801:0crwdne2930801:0

My camera does not turn on

Canon EOS 40D crwdns2933313:01crwdne2933313:0

Dan 490,5crwdns2936485:0crwdne2936485:0

crwdns2931217:0crwdne2931217:0

Kho 21, 2024

answered Kho 21, 2024 crwdns2933505:0crwdne2933505:0 Dan

Question 9

1 crwdns2930801:0crwdne2930801:0

Camera not formatting CF cards

Canon EOS 40D crwdns2933313:01crwdne2933313:0

bill 5,7crwdns2936485:0crwdne2936485:0

crwdns2931217:0crwdne2931217:0

Kho 10, 2024

answered Kho 10, 2024 crwdns2933505:0crwdne2933505:0 bill

Question 10

1 crwdns2930801:0crwdne2930801:0

Rubber door for DC power adapter cable

Canon EOS 40D crwdns2933313:01crwdne2933313:0

Nick 94,3crwdns2936485:0crwdne2936485:0

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Huk 4, 2023

answer edited Huk 4, 2023 crwdns2933505:0crwdne2933505:0 Nick

Question 11

1 crwdns2930801:0crwdne2930801:0

Error 001 on display. Contacts between lens are clean!

Canon EOS 40D crwdns2933313:01crwdne2933313:0

Jean Ockert

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Mha 20, 2020

answered Mha 20, 2020 crwdns2933505:0crwdne2933505:0 Jean Ockert

Question 12

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Some pictures from camera

Canon EOS 40D crwdns2933313:01crwdne2933313:0

Declan Marsh

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Mud 27, 2018

answered Mud 27, 2018 crwdns2933505:0crwdne2933505:0 Declan Marsh

Question 13

1 crwdns2930801:0crwdne2930801:0

My camera won't fire.

Canon EOS 40D crwdns2933313:01crwdne2933313:0

ThomasK

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Kho 11, 2016

answered Kho 11, 2016 crwdns2933505:0crwdne2933505:0 ThomasK

Question 14

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My rear display is blank otherwise it works ok? can anyone advise me?

crwdns2934197:0crwdne2934197:0 Canon EOS 40D crwdns2933315:00crwdne2933315:0

bryanrmn

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Sun 21, 2021

asked Sun 21, 2021 crwdns2933505:0crwdne2933505:0 bryanrmn

Question 15

1 crwdns2930801:0crwdne2930801:0

Why is my camera's response time slow?

crwdns2934195:0crwdne2934195:0 Canon EOS 40D crwdns2933313:01crwdne2933313:0

james robson

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Kho 6, 2015

commented Kho 6, 2015 crwdns2933505:0crwdne2933505:0 james robson

crwdns2944620:0Canon EOS 40Dcrwdne2944620:0

Canon EOS 40D crwdns2944630:0crwdne2944630:0