Bosch aquatak 1200 plus

chek if you have power by the on of button , if tere is power , chek transformer , if there is power on both sides , if motor have a capacitor , test it don,t get shocked ,u can test it with a meter , or it must be abel to make a spark, look for lose wires , chek if tere is belds on the motor and the drum ,chec if the pully on the motor axes is not lose , that the motor run but not the drum ,chec the power lead and the male plug that go to the wall , find the book let in dex for ansers lastly phone your electrical persone , but don ,t get shoked ! please hope it helped

Are you able to squeeze the trigger or is it locked closed?

internal ceramic swivel is obstructed or broken, insert fine wire (supplied) into head then back flush head, or replace head, checkout ebay

First off check your pressure wand / water nozzle make sure it's clean. if that doesn't help then it could be your water pump.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/anthony_e4f197748c31eabd

Check to make sure the outlet (power supply) is energized. This piece of equipment is supposed to be used on a ground-fault protected circuit, so make sure the ground-fault on the outlet didn't trip or the circuit breaker (fuse) at the electric panel did not trip (or blow)
Check to make sure you are going through the proper starting procedures as outlined in your user's manual on page 8.
Follow the troubleshooting tips on page 10 of the user's manual.
Beyond that, Bosch requires that you have your power washer repaired at an authorized / qualified repair center.
I did locate a web site that shows an exploded parts view of the pressure washer, if that helps. http://www.magic-parts.co.uk/acatalog/BOSCH-Aquatak-1200-Plus.php
In case you don't have a user's manual, you can view it at: http://www.manualslib.com/manual/537062/Bosch-Aquatak-110.html#manual
Best wishes on your project.

need to clear out your total inlet system and flush the pump out if needed and install either inline filter or screen

nothing to worry about could be due to water intake,wear on nozzle or just the gauge

Cylinders 1-3-5 are on the back side of the engine. Cylinder 1 is the passenger side and cylinder 5 is the drivers side.

Cylinders 2-4-6 are on the front of the engine. Cylinder 2 is on the passenger side and cylinder 6 is on the drivers side.

The coil pack will have the cylinders labeled at each post.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Well, motor starters are usually used in that scenario. I suspect that is the reason the switches fell apart (too many amps). As long as the pump motors aren't over 1 HP each and you are using DPST 20 amp switches rated for 2 HP,(still not best practice) here's how to wire them:
Connect the 2 incoming 240 volt wires from the circuit breaker to a screw on each side of the _top_ of switch #1 (main pump). Connect a pigtail to one screw on the bottom of switch #1, then twist that pigtail together with another pigtail and one of the outgoing wires to the main pump. Connect the other pigtail to the top of switch #2. Repeat for the other bottom screw on switch #1.
The outgoing wires to the booster pump then go to the bottom of switch #2.

This video will show you how to change a door seal on this Bosch classics 1200 WFL 2463GB/12 FD