Check if there's fuel in fuel lines. Tank level sensor can be stuck so you might empty it dry and not even know it You have broken vent flap servos or just need calibration with Volvo diagnostic tool. If both heater hoses are hot, and the radiator is full of coolant, it may be a blend door problem under the dash. The signs are relatively simple. In the event that your heating turns and does not create very little heat, the problem probably comes from the hoses. These clog up over time and no longer allow hot water to reach the heating of this Volvo V50. In this situation, clean the hoses or put new ones. Air pocket in the circuit of the Volvo V50 2005 Volvo V50 Heater Is Not Working? RepairPal will help you figure out whether it's your Heater Blower Motor, Thermostat, Heater Blower Motor Resistor, or something else. 0:00 / 9:29 Volvo Webasto problems / Volvo diesel heater not working Fix Madman Car 16.4K subscribers Subscribe Subscribed 69 Share 48K views 2 years ago volvo webasto diesel heater xc90 After reaching normal operating temps, my 05 V50 T5 heat does not work unless it is on High. The airflow directions are all correct..just no heat. Local (long time) mechanic says "Scan Tested Detected Code: DTC CCM-0017 Damper Motor Faulty Position. Need Softward Update from Volvo Per TSB 87-48." .

volvo v50 heater not working