Check for irregularities. If you're at the windshield repair or rear of the car, look along the car to see if there are small dents. These can be seen as distortions in the reflection. If the paint is not smooth in one place, then this could be a place where there has been some damage. Dents as large as a coin can be restored by a panel beater. Dents that are not thoroughly repaired are often filled with polyester resin or fibreglass paste. Tap the surface, or go along it with a magnet. Know whether the panel is made of steel, not plastic, fibreglass or aluminum. If there are places where the magnet will not adhere, then in all likelihood, the panel has been repaired. Ask the owner why the part has been repainted?
Some things to troubleshoot before calling for service include whether the unit is blowing out cool air into the room. Is the thermostat set to cool? Also, go out to your fins and see if they are sucking air in. If all of those things seem fine go and see if your machines float switch is floating. If the float switch is floating this could indicate a drainage problem. If you use your shop vac to suck out any clogs and it's still not better you will need air conditioning repair. Troubleshooting can keep you from paying for service calls when it's something silly that is wrong.
As a windshield installer for the past thirty five years, let me give you three good reasons not to repair your windshield. As windshield repair is a gimmick in my opinion.
Prior to spending huge amount on a new paint a little money can be spent on cleaners polishes and rubbing compound just for seeing if grease fix auto glass repair are of any help to solve the problem.
It is also too easy to forget that VW Bay Window Campers need frequent servicing; in fact some servicing tasks will require your attention at a frequency of as little as 2000 miles! It is incredible to think that most modern cars have service intervals of 10000 miles or more. The high operating temperatures of Air-cooled Volkswagens' for instance require oil changes every 3000 miles to protect vital engine components from heat and wear related damage.
Wash your vehicle. As with dirt or other debris, water in the damaged area can cause your windshield to crack further or even make it impossible to fix using traditional windshield crack repair techniques.
Windshield repair or replacement is totally depending upon the size and location of the damage and cracks. So, before going for any of these options just consult a glass specialist who can examine your shield and suggest if a repair will work or not. If damage from an accident is quite big then do not compromise your life, as you know better that windshield replacement is a necessity. Just bear in mind that your life is more valuable than anything else.