What kind of problem is a faulty heater valve?
Here’s a picture of a faulty Heater Valve that was removed from a 2005 S-Type. Both of its solenoids were drawing too much current (one of which was tested at over 6 amps, an 850% over-current condition!): There is no over-current fault-protection circuitry that protects it against damage due to faulty Heater Valve.
Why is my heater control valve leaking coolant?
Over time the heater control valve can wear out and crack, which will cause coolant to leak from the valve. Heater control valves can also leak from excessive corrosion from contact with old or contaminated engine coolant. Usually a leaking control valve will have to be replaced in order to repair the leak.
How is residual heat triggered in a Touareg air conditioner?
All other functions, such as the residual heat function, are triggered by the Climatronic control unit. – In the case of heater support, the given pump starts up to ensure that, for example in the case of a low engine speed with a simultaneous high heating demand, enough air flows through the heat exchanger.
What causes a heater to leak on the passenger side?
This may occur on just the driver side, just the passenger side, or both sides. It may be intermittent. 1. Fault in the pressurized A/C system, including the compressor, condenser fan, refrigerant pressures, refrigerant leakage, etc. 2. Heater Valve is defective.
What kind of heating system does an aircraft use?
Bleed air heating systems are simple and function well, an electric heating device is used to heat the aircraft. Most single-engine light aircraft use exhaust shroud heating systems to heat the cabin. Aircraft combustion heater is used on many small to medium sized aircraft.
How does a vintage air Compac heater work?
Add heat and defrost to your ride quickly and easily with a Vintage Air ComPac Heater or Gen II Heater with Defrost. Billet front accessory drive systems that include brackets, pulleys, power steering pump and reservoir, water pump, 170-amp alternator, and drive belt.
When does the ignition occur in an aircraft heater?
[Figure 6] The ignition is continuous when activated. This occurs when the heater switch is placed in the ON position in the cockpit, and the combustion air blower builds sufficient air pressure in the combustion chamber. Use of the proper spark plug for the combustion heater is essential.
What does an overheat switch on an aircraft do?
An overheat switch set at a higher temperature than the duct limit switch guards against overheat of any kind. It is designed to cut fuel to the combustion heater before an unwanted fire occurs.