Volvo V 70 - Short-circuit of electric auxiliary heater | HELLA

Volvo

V 70

Model years: 2008 - 2009

Vehicles equipped with air conditioning and electric auxiliary heater

Condensation water drain hose


Short-circuit of electric auxiliary heater

In the above vehicles, a clogged condensation water drain hose may cause a short circuit in the electric auxiliary heater.

The function of the electric (PTC) auxiliary heater located in the heater box may be significantly affected by a clogged condensation water drain.

Because the condensation water is not discharged to the outside, there is a risk of an electrical short circuit. In an extreme case, a cable may catch fire.

The vehicle manufacturer has already addressed the problem and checked the vehicles in the wake of a recall campaign, replacing the drain hose/valve where necessary.

Nevertheless, one may assume that for various reasons not all vehicles have been checked and repaired.

Please note this information, particularly in connection with complaints regarding poor heater performance.

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The following technical information and tips for practical use have been set up by HELLA in order to offer professional support to automotive workshops in their daily work. The information available here on this website is only to be used by appropriately trained specialist staff.

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