combo vac

[txheat]

one of combo vac/shampoo has no power to the unit. i checked the fuse and relay coil (rectangular), relay 24v Mercury it seem to be ok. The only thing left is the pump, air compressor and transformer. I do know that the last setting on the timer was on shampoo when it went out because i switch it out to another vac/shampoo it automatically switch on to shampoo. which is likely to be the problem? or is it something else? cause right now timer wont even power up.

 

[Earl Weiss]

Did you solcve this. HArd to tell from your description but:

Did you check output on 24 Volt transformer?

On some there is a small fuse for the 24 Volts. It is just to the right of 2 relays inside. It's a gray holder that swings open at the bottom. If fuse is blown a red light shows.

 

[txheat]

Did you solcve this. HArd to tell from your description but:

Did you check output on 24 Volt transformer?

On some there is a small fuse for the 24 Volts. It is just to the right of 2 relays inside. It's a gray holder that swings open at the bottom. If fuse is blown a red light shows.

Yes found the problem. The screw was loose on the terminal block burnt the ends and shorted the unit. Sorry for the confusion, what i was trying to say was i replace everything but the pump, air compressor, and transformer. When i was trying to take the transformer out notice wire ends burnt... got lucky.