Water in heater box

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lightning

lightning

Well-Known Member
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4,156
Location
High Peak
I noticed that after bad rain, when l get in my Defender the heater fan makes a sloshing noise as if there is water in it.
It soon clears but is clearly not right.
How can water get into the blower housing, and how can l stop it from happening?
 
It might just be your drain is blocked, take the vent off the intake on the wing, and stick you hand down to the bottom and clean out the drain.

Might even be able to poke it out from the underside.

OR, the heater matrix is leaking, but since it's rain related I think you are OK.
 
The air intake is on the top of the wing, so rain goes straight in. To cope with this there is a vent in the under side of the intake duct. Lift bonnet, slide your hand along underside of the air intake duct and you'll feel a rubber birds mouth shaped tube sticking down. This can stick together with mud. Squeeze it and the water will flood out. Take the intake cover off, stick your arm down, clean the inside, rinse it. Sorted. :)
 
I think l just fixed it in time, as the motor has stalled twice recently and l was only alerted by the smell of burning!

Why is there a grommet and not just a hole (such as the one left if you remove the grommet) The water just drains on to the top of the inner wing either way.
 
Just a hole and no rubber valve would let engine smells etc be drawn into the cab area 💩 not that they are pong proof anyway 😄😄
 
GATSO said:
Just a hole and no rubber valve would let engine smells etc be drawn into the cab area �� not that they are pong proof anyway ����
Click to expand...

+1 you just want fresh air pulled in to the cab. Now you know it's there, it just takes a quick look once a year. Or, if the screen starts to steam up suddenly check it straight away :)
 
I had the same issue, once clear I fitted a Mudstuff Snow Cowl as that is designed to stop snow blocking the intake but works just as well for leaves, mud twigs etc. google Mud Stuff snow cowl to find it
 
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