what is this switch for

[ladybird]

P1030522 by ladybird12345, on Flickr

can anyone tell me what this switch is for its under the back seat

[ladybird]

sorry the white one

[Oldiebut goodie]

Turning off the coolant to the rear heater matrix.

[ladybird]

Turning off the coolant to the rear heater matrix.

thanks oldie...... should i leave it on or off

[Oldiebut goodie]

Depends upon whether you need the heat in the back or not.

[lloydy]

i turn mine off in summer and back on in winter. That way in the summer you can use it to circulate air around the van

[ladybird]

there is a switch to knock it on and of up the front
seems pointless to have another under the chair
anyway thanks for the replys lads

[lloydy]

the switch on the dash turns the fan on, the lever on the unit stops coolant circulating around the core. Exactly the same as the front heater. (lever and fan switch) in the summer surely you turn the lever to off on the front heater so you can use the fan to cool the van?

[ladybird]

the switch on the dash turns the fan on, the lever on the unit stops coolant circulating around the core. Exactly the same as the front heater. (lever and fan switch) in the summer surely you turn the lever to off on the front heater so you can use the fan to cool the van?

i hadnt realised there was a switch for it up front were would i find such a unit