CO2-Timer app not working? crashes or has problems?

CO2-Timer Status

Last Updated on 2021-04-21 by Deutsche Gesetzliche Unfallversicherung e.V. (DGUV)

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Common CO2-Timer Problems & Solutions. Troubleshooting Guide

Complete guide to troubleshoot CO2-Timer app on iOS and Android devices. Solve all CO2-Timer app problems, errors, connection issues, installation problems and crashes.

Table of Contents:

CO2-Timer iPhone Issues and Solutions

CO2-Timer iOS app crashes, not working, errors
CO2-Timer iOS app network issues
CO2-Timer on iOS has black/white screen

CO2-Timer Android App Issues and Solutions

CO2-Timer has errors/crashing/not working
CO2-Timer server network connectivity issues
CO2-Timer has black screen

CO2-Timer iPhone Issues and Solutions

Here are some helpful workarounds that should work whenever CO2-Timer app keeps crashing or doesn't work as expected on your iPhone 14, 13,12,10,8,7,6, SE,XS,XR.

How to fix CO2-Timer app crashes or not working on Iphone (iOS):

Close and restart the CO2-Timer app on iPhone
Update CO2-Timer app to the Latest Version for iOS
Uninstall and reinstall CO2-Timer iPhone app
Update your iPhone to the latest iOS version

Fix CO2-Timer on iPhone unable to connect to server/internet connection issues::

To resolve CO2-Timer network issues, Reset phone network settings:
1. On iphone, Goto "Settings" » "General" » "Reset" » "Reset Network Settings".
2. Enter your device passcode. Then confirm "Reset Network Settings".

Turn off your VPN:
1. Goto "Settings" » "General" » "VPN".

Fix CO2-Timer black/white screen (blank screen) on iPhone:

Follow the CO2-Timer iOS app troubleshooting guide Here →

CO2-Timer Android App Issues and Solutions

Fix CO2-Timer not working on Android, crashes, errors or is unresponsive:

Follow these steps to resolve intermittent CO2-Timer app issues:

Force Stop the CO2-Timer App
1. On android, goto "Settings" » click CO2-Timer app. » click "Force Stop".

Update CO2-Timer to the latest version on PlayStore

Clear CO2-Timer App Cache and Data:
1. On your device, goto "Settings" » click "Apps" » select "CO2-Timer app" » click "Storage" » click "Clear Data" option. This Clears both data and cache.
2. Relaunch CO2-Timer.

Fix CO2-Timer unable to contact server/ CO2-Timer internet connection errors on Android:

This issue is usually caused by your network. Here is how to fix:

On android, goto "Settings" » "Apps" or "Manage Apps" tab.
Click CO2-Timer » "Force Stop".
Next, goto "Storage" » "Clear Data".
Again, got CO2-Timer » "Mobile Data" » "Allow Background Data Usage".
Go back to "Settings" » "Connections" » "Mobile Network" » "Network Mode".
Now, put your network on 4G e.g. LTE/3G/2G (auto connect)
Relaunch CO2-Timer on android.

Solve CO2-Timer black/white screens issue on Android:

Follow the CO2-Timer android app crash troubleshooting guide Here →

Contact Support

Some issues cannot be easily resolved through online tutorials or self help. So we made it easy to get in contact with the support team at Deutsche Gesetzliche Unfallversicherung e.V. (DGUV), developers of CO2-Timer.

About this app

Voraussetzung dazu ist eine gute Belüftung des Raumes, die sich an der im Raum vorhandenen Kohlenstoffdioxid (CO2) - Konzentration messen lässt. Dazu geben Sie die für den Raum relevanten Daten, wie Personenanzahl, Aufenthaltsdauer, Grundfläche und Raumhöhe ein und die App berechnet, wann und wie Sie lüften sollten. Gute Luft ist eine der Grundlagen für Gesundheit, Wohlbefinden, Leistungsfähigkeit und für gutes Arbeiten, Lernen und Lehren. Aufgabe der CO2-App ist es, Ihnen die Vorgehensweise und Vorteile guter Raumdurchlüftung sowie ein Bewusstsein zu diesem Thema zu vermitteln. Daher muss in Arbeits- und Schulräumen ausreichend „gesundheitlich zuträgliche Atemluft“ vorhanden sein. Mit dem Aktivieren des Timers werden Sie zudem rechtzeitig an die Lüftung erinnert. Mit der App lässt sich die CO2-Konzentration in Räumen berechnen. Alle eingegebenen Daten werden ausschließlich auf Ihrem Smartphone gespeichert.