How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Eng. Andres Your Own Question
Eng. Andres
Eng. Andres, Engineer
Category: Electronics
Satisfied Customers: 68
Experience:  Electronic Eng. Electronics Specialist. Circuit designer
54002000
Type Your Electronics Question Here...
Eng. Andres is online now

t90z pressure / temperture fluctuating after a couple of mins,

Customer Question

t90z pressure / temperture fluctuating after a couple of mins, shower less than 1 yr old
Submitted: 4 years ago.
Category: Electronics
Expert:  TV-Tech1 replied 4 years ago.

I would check the filter and purge any air from the unit and see if that restores normal operation. Is your sprayer showing any signs of being clogged?

 

 

Customer: replied 4 years ago.

no sign of clogging, air is already purged and pressure good, temp / pressure good for the first couple of mins and then goes haywire

Customer: replied 4 years ago.

no sign of clogging, air already purged, pressure/temp good for the fist couple of mins and then goes haywire

Expert:  TV-Tech1 replied 4 years ago.

What happens if you set the temperature controls to maximum. Do you at least get consistent flow and temperature?

 

The only reason I can see such a wide variation after a couple minutes would be due to a mechanical temperature switch not responding like it did when the unit was new. If you turn up the controls to maximum the unit should give you consistent flow and temperature. Then I'd try the opposite....see if the cool setting is consistent. That would at least verify the heater and pump aren't the cause of the issue and isolate the mechanical thermoswitch.