My dishwasher Dihr type 23 presents en error "P1". i need the opration manual to identify the problem

Most likely sump temperature probe needs replacing.

the E3 error is a result of water temperature not getting to a nominal value within a particular time. This could be caused by several factors like heater faulty, wash pump not working well, wash arms not circulating water as required. Need model number to help you further pin point if possible.

Refer this site for 60 inch dishwasher and this site for 45 inch ones.

I replaced the probe temp according to error code P1 but the display still shows error P1. Is there any suggestion for further troubleshooting?

Found this from another solution about the P1 error. Might be helpful:

This is a bad sump temperature probe. The unit will function, but will not heat nor display the wash water temperature.

This is a very easy fix. Order Hobart part number 328994 from your nearest Hobart parts dept.

Turn off and drain the unit. Kill the power to the unit at the circuit breaker. Remove the lower front cover. Locate the screw-in temperature probe at the front of the sump. Unplug the sensor from the wiring harness, remove with a 7/16" open end wrench. Screw in the new probe, using teflon tape of the threads, snuggly. It does not need to be super tight. Plug it into the harness, reinstall the front cover, turn the breaker back on, and start up the unit.

TURN THE BREAKER OFF AS EVEN WITH THE UNIT "OFF" THERE WILL BE 120 VOLTS PRESENT AT THE SUMP HEATER (yellow wires) DUE TO ONLY ONE LEG OF POWER BEING SWITCHED OFF!

kc

Hola y bienvenidos a FixYa,

No sé español. Estoy usando Google Translate para enviar este mensaje. Si hay algún error, por favor perdóname.

Puede descargar el manual de instrucciones en formato PDF desde este enlace.

Gracias por usar FixYa.

Go to diagnostic mode you can turn on the drain manually. The motor has 2 directions of operating: one for pump and the other for drain. When the LCD displays P1 it means wash, when it displays P2 it is for drain.

This is a bad sump temperature probe. The unit will function, but will not heat nor display the wash water temperature.

This is a very easy fix. Order Hobart part number 328994 from your nearest Hobart parts dept.

Turn off and drain the unit. Kill the power to the unit at the circuit breaker. Remove the lower front cover. Locate the screw-in temperature probe at the front of the sump. Unplug the sensor from the wiring harness, remove with a 7/16" open end wrench. Screw in the new probe, using teflon tape of the threads, snuggly. It does not need to be super tight. Plug it into the harness, reinstall the front cover, turn the breaker back on, and start up the unit.

TURN THE BREAKER OFF AS EVEN WITH THE UNIT "OFF" THERE WILL BE 120 VOLTS PRESENT AT THE SUMP HEATER (yellow wires) DUE TO ONLY ONE LEG OF POWER BEING SWITCHED OFF!

After checking the service manual, I find no code for E1. There is a P1, or other E codes. Please list ML number.