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Rover 400 Series

Why would a Rover414 heater suddenly start only blowing out cold air when the switch is on warm?


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Wiki User
2010-10-31 17:34:13
2010-10-31 17:34:13

just had an rac bloke come check my car which was actually overheting,but also suffering from no hot air coming through the heater when switched to hot.

he found it to be the thermostat.

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Fuse, switch, speed resistor or motor.

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There is an electrical short to ground in the fan switch or in the blower motor itself.

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AnswerBad thermostat, clogged heater core, or a defective heater control switch. If an engine has not been running long it will not have warmed up, the warmth from a car heater usually comes from the engine.

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Beause there is probably a short/bad connection in the switch, or the blower motor itself

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Sounds like the cable attached to the switch that changes the pipes to carry warm water has snapped, if you can locate this switch you can do it manually to allow your heater to work, have a look for it around the bulkhead


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