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Loud humming noise when dishwasher is filling up with water
your model is pretty new. just so you know your warrenty is 1 year parts and labor. 2 years on parts. it should not cost that much money.
there are two components that start before the circulation pump.(wash noise you hear)
first sounds you hear will be the drain pump. usually rattling noises if something is in it but it can make a hum noise if something is jamming the drain propeller up. which is accessible with a T20 torx driver. take the filters out and the mesh filter. and unscrew the screw in the base towards the left. pull out whatever is lodged.
the other humming sound can come from the next component that activates is the watervalve. make sure you dont have a kinked water intake line. otherwise its a bad valve. i have had to change a few of those water valves out already but not for a hum noise on your model. you have a new style water valve. when brands make new parts we get problems fast sometimes..
Bosch 24 in....
on Nov 24, 2018
Dishwasher: BOSCH SHE43 - pump keeps draining
Your dishwasher is stuck in flood mode. Bosch dishwashers are built with flood switches located in the bottom base pan of the dishwasher. The flood switch is connected to a rod that activates a small interlock switch. When water enters the base pan on a Bosch dishwasher, a Styrofoam puck lifts the rod, activating the flood switch.
When the flood switch is activated, the dishwasher will go into a no-fill, only-drain mode. The drain motor may also run with the door open to the unit. This is definitely a sign there is water in the base pan. This can be caused by the drain being clogged. There are two ways to fix:
1. You can uninstall the dishwasher and tip it forward to about a 45 degree angle to drain the water out of the base pan. (This is probably why Ian Bint's solution fixed the problem.) Be sure to put a towel under the dishwasher first so that the water is soaked up in the towel instead of going all over the floor. Once you've drained all the water out of the base pan, reinstall the dishwasher and begin a cycle. If it fills and runs, you are good to go.
2. You can also unplug the unit, then remove the kick panel at the bottom in the front. (It's attached with two screws.) Then get some old washcloths or small towels and reach into the base pan below the dishwasher to soak up the water. The pan is directly behind the plastic base panel rim. Once the pan is empty and dry, your dishwasher will no longer be in "flood mode" and will run properly.
If the base pan keeps refilling with water and the no-fill problem returns, there is definitely another issue, such as a clogged drain. At this point, you need to decide whether to invest in an expert evaluation by a certified Bosch repairman and make the necessary repairs, or buy a new dishwasher.
Bosch 24 in....
on Jul 01, 2017
Error code C1 PO......
Hello. Your model dishwasher has a recall on it. There is a potential problem with the control board. Call Bosch at (800)856-9226 to find out if your unit needs to have a new control board installed and re-programmed. This only covers the replacement of the control board--any other problem will be covered by the customer. You will need the model and serial number. Next, regarding your model's problem...this was gotten from another tech site(I'm a member of quite a few, lol)
"Sounds like the unit is stuck in the control coding mode. C1 is the proper coding for your model so you just need to lock it in.
To enter coding mode, press and hold the second, third, fourth and fifth buttons to the right of the display simultaneously, then turn the dishwasher on using the On/Off switch. The associated leds will be blinking to confirm coding mode.
Release all buttons to view control coding. To change coding, press the second button to scroll through codes C0 - C9. C1 is the correct code for your unit.
Turn the dishwasher off to save control coding and exit coding mode." I hope this helps you! Let me know if you need further assistance!---Thanks!
Bosch 24 in....
on Oct 17, 2015
Dishwasher times down to 1 minute on any cycle,
Welcome to FixYa.
Based on your description I'd say the issue is with the control...unfortunately.
The number"1" being displayed ( on models with the display like yours ) is actually an error code indicating a fault in the heating process.
Bosch has had a history of this exact problem I'm about to lay out for you and this is the first thing I'd be looking for if called out to service the unit with the symptoms you've described.
**B/S/H/ also issued a recall on certain models between 1999 - 2006 depending on the serial number so you may want to contact Bosch to inquire if yours is affected.**
Bosch dishwasher hotline 1-800-856-9226
Before calling, have the model and serial numbers on hand. A live operator can be reached at the hotline 24/hrs day.
Those not affected by the recall still can be a problem but easily fixed.
As I've alluded to the issue is likely within the electronic timer/control, specifically the heater relay solder joint. ( a faulty flow switch, ntc or heater can also cause this, but not very probable ).
My first suggestion would be calling in an authorized bosch service tech. if that is an option for you and your budget however, If you feel capable of checking this on your own, there`s a way to visually inspect the control yourself.
It will require you to remove the control from the unit and then remove the control from it`s plastic housing and look for a burnt solder contact on the printed circuit board.
The culprit will 99% of the times be one of the pins from the heater relay,
**Your control WILL differ in appearance, however the issue, the service and all the same info applies...except the part number. Yours will be # 431692**
**Flip this over and inspect the solder joints, it will be obvious when you see it...the cover for your models control comes apart in a similar manner**
This is where and what to look for, except I`ve re-soldered this one already...
...hence the unit sit`s and takes longer
Bosch 24 in....
on Mar 27, 2015
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