Install Instructions

6 720 647 088 (2017/05)Tronic 3000 C Pro
Troubleshooting | 13
6 Troubleshooting
If the problem persists:
The person who initially installed the unit is probably the best
one to contact for help. You can also call Bosch
Thermotechnology Corporation at 800-798-8161 or visit
www.bosch-climate.us. Please have this guide with you when
you call.
6.1 For the Installer
6.2 For the User
Symptom Cause What do do
Cold water only -neon light
off.
Electricity not on. Check electrical supply.
The water supply is connected to the
OUTLET of the unit.
Reconnect the water supply to the INLET (marked in blue).
The high temperature thermal cut out
has tripped.
Reset it by opening the unit and pushing the button on the
cut out (Fig. 2 ). Before you do this you must find the
cause of the problem.
The flow switch is not working. Turn off the power and observe if the flow switch activates
when the water is turned on.
If not contact Bosch Thermotechnology 800-798-8161
www.bosch-climate.us
Water too cold -neon light
on.
Water flow too high for unit to control Adjust water flow to recommended flow rate.
One element is not working. Switch off the electricity and check the resistance of the
elements.
The power supply voltage has dropped. Check the supply voltage to the heater.
Temperature is turned too low. Ensure that the temperature dial is in the correct position
for the flow of water.
Water flow too low, or
temperature too high.
There are restrictions in the plumbing. Check the plumbing. Only use Teflon tape for sealing pipe
joints.
Table 6
Symptom Cause What do do
Little or no water flows. The water supply is turned off. Turn on the main supply fully at the stop valve.
Cold water only -neon light
off.
The flow is not high enough to
activate.
Open the inlet service valve fully.
Cold water only -neon light
on.
The water flow rate is too high. Adjust the flow rate with hot water outlet service valve.
The flow rate is correct. Adjust the temperature dial on the front of the cover.
The inlet water temperature has
dropped.
Adjust the flow rate with hot water outlet service valve.
Water flow rate too low, or
temperature too high.
The hot tap is not fully open Adjust the stop/ball valve so that water is at the right
temperature with the tap fully open. Always turn the hot tap
fully on.
Table 7