Thermo King V300 fault

[Chris2005]

Hi All

I have a problem with a thermo king V300,

The cab controller is lighting up but the green light for cooling will not come on .

I have found the HP switch that is located on the high side pipe of the compressor on the roof was all black and burned so replaced this but made no difference.

I then checked the fuses on the relay board and the 3 amp fuse was blown replaced this thinking everything would be ok and still nothing.

There is 28 volts at the 25 amp fuse at the relay board but thats as far as it goes.


Regards

Chris

[clivemtk]

you tried it on standby

[Chris2005]

Hi Clive

Never got a chance to try it on standby as there was no lead with the lorry in the yard.

I will give it a try on standby and see what happens.

if it works on standby and not the lorry voltage where would the problem be.

Regards

Chris

[clivemtk]

try tk50982-1 it shows what to test