Where can I get a Canadian cartridge for my USA restricted 400 series Delta faucet? Can't see how low flow saves water, just wastes time.

There is normally a filter at the end of the faucet outlet. They usually unscrew. its usually a fine mesh screen with a plastic backing mount.

YOU HAVE A COLD WATER RESTRICTION SOMEWHERE. THROW A DIFFERENT FAUCET ON THERE, AND SEE HOW THE FLOW IS. MY GUESS: STILL POOR....TRACE COLD LINES BACK UNTIL YOU FIND IT

All resets and breakers trip with high heat.
Do you mean the tankless unit is tripping the 40 amp circuit breaker?
Or the thermal cut-out, located on unit, is tripping?

Is this a new installation?
Or was the tankless working before and stop working?

Copy following link to check wiring.
AE 9.5 requires 40 amp breaker and 6 gauge wire.
http://waterheatertimer.org/How-to-wire-Tankless-electric-water-heater.html

If the unit is tripping the thermal cut, -out, then product manual says to call Bosch or service technician.
Call Bosch 866-330-2729
http://waterheatertimer.org/pdf/Bosch-Powerstar-AE3.4-7.2-9.5.pdf
Thermal cut-out can trip if water flow is too low.
Try changing power selector screw from Hi to Lo so only 1 element is ON. See diagram page 6 of manual.
Adjust the 'outlet service valve:' The manual recommends that a ball valve be installed between hot outlet and faucet. Adjust the valve so more water flows to faucet.
Remove aerator, clean aerator, don't use low flow restrictions or low flow shower heads, replace leaky faucet cartridge on single-handle faucet.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

the two screws are service stops open them all the way

• The spool and sleeve, the part of the Scald-Guard pressure balance valve that blends the hot and cold water, is not working properly. This can is caused by mineral deposits that build up over time resulting from hard water. To fix this, follow the steps below based on your model.

1. Shut off water supply.
2. There are two types of valves. Choose one or the other below depending on your series.

• 1300-1400 Series: Remove handle.
• 1700-1800 Series: Remove temperature knob, cover and handle.

1. Twist and pull sleeve to remove it.
2. Unscrew brass bonnet nut.
3. Remove cartridge.
4. Soak cartridge in a 50/50 vinegar and water solution for 24 hours to remove any mineral deposits.

• **NOTE** Unless both hot and cold water supplies are turned on, the pressure balance valve will allow only a dribble of water to flow through the valve.
• I have put up a picture to make disassembling it just that much easier for you.

Regards, Tony

A picture is worth a thousand words"

The cartridge should have pins that create proper alignment with the supply lines. New single handle faucets have limiters that allow you to control the amount of hot water. Check the limiter position. Its also possible that the cartridge is clogged with debris. Modern low flow plumbing appliances reduce flow by reducing the water passages inside the unit. Therefore they are more easily clogged.

To get full pressure you need to pull the wand away from the base. Then remove the wand from the hose becareful not to loose the washer. When the wand is removed look down the wand you will see a plastic part. That plastic part is a flow restrict-er. You need to put a screw in the restrict-er and pull it out. When it is out put wand back on the hose then you will have full water pressure.

Hi,
You probably need to adjust the faucet to give you hotter water.
The other problem can be low water pressure... if your cold water pressure is low or there is a restriction in the line, it willl also restrict the hot water flow.
Follow these instructions to pull the whole valve assembly out and check the water flow of the cold water with out anything in the valve body. This will tell you if the problem is in the piping of the valve.

http://www.everyfaucet.com/Delta-T13220-DLT2970.html

Page down to near the bottom and look for the PDF attachments. They will give you the details you need to take the faucer apart and amke the neccesary ajustments.

I hope that this will help you to solve your problem!

Thanks for using Fixya!!

Heatman101

The only possible explaination is that the water is finding it easier to go up than down. Water is lazy, just like me. ;)

Use an allen key to remove the tub spout. It's underneath and awkward. Once the allen key is loose, the spout just slides off. Try running the water. This may solve your problem and all you'll need is a new tub spout. If not.....

Turn the water off to the house.

Use an allen key to remove the handle.

Use a phillips to remove the trim plate (2 screws). Cut the silicone around the trim if it's there (which, in a proper installation it shouldn't be, but...)

Unscrew the nut (usually chrome) holding the cartridge into the brass body of the valve. The cartridge pulls straight out. Check for restriction in the ports of the cartridge itself. Check for restriction in the line going down to the tub spout. If you can't find anything, replace the cartridge.

Reassemble & Enjoy!