25
Problem
Cause
Solution
Display: “
E1
” and
appliance does not
response to the remote
control
Remote control is not reg-
istered at the instantaneous
water heater
Register again, remove and insert the
batteries again
Transmission range exceeded
Place the remote control closer to the
appliance, press button
Display: “
d1
”
Registration in process
Hold the remote control in front of the
instantaneous water heater
Symbol “battery”
lights
Flat batteries
Insert two new type AAA-batteries
Temperature changes
unintentional
Operation via other remote
control, Smart Control app or
directly on the water heater
Only register the desired remote control
Display: “
E2
”
PIN entered incorrectly
several times
Wait a few minutes until the display “
P1
”
appears and enter the correct PIN
Display: “
E9
”
Connection error to the
appliance
If this happens repeatedly, replace the
batteries, contact customer service
The following table will help you to determine and rectify the reasons for possible problems.
11. Troubleshooting and service
