For The User - Bosch TRONIC 3000C Pro Instrucciones De Instalación Y Funcionamiento

14 | Troubleshooting
Symptom Cause
Water too cold -neon Water flow too high.
light on.
The power selector screw not all
the way to "HI".
One element is not working.
The power supply voltage has
dropped.
Water flow too low, or There are restrictions in the
temperature too high. plumbing.
Table 7
6.2

For the User

Symptom Cause
Little or no water The water supply is turned off.
flows.
Cold water only - The flow is not high enough to
neon light off. activate.
Water too cold - The water flow rate is too high.
neon light on.
The inlet water temperature has
dropped.
Water flow rate The main supply of water flow is too
too low, or low.
temperature too
high.
The hot tap is not fully open.
Water Fluctuating water pressure and/or
temperature flow is causing the flow switch to cycle
fluctuates. on and off.
Table 8
6 720 647 005 (2017/05)
What to do
Adjust water flow (see Table 4 ).
Change the power select screw to "HI", see Fig. 5 .
Switch off the electricity and check the resistance of the elements
(see Table 4 ).
Check the supply voltage to the heater (see Table 4 ).
Check the plumbing. Only use Teflon tape for sealing pipe joints.
What to do
Turn on the main supply fully at the stop valve.
Open the inlet service valve fully.
Adjust the flow rate with hot water outlet service valve.
Adjust the flow rate with hot water outlet service valve.
Increase the water flow.
Adjust the stop/ball valve so that water is at the right temperature
with the tap fully open (see section 5.2). Always turn the hot tap
full on.
Increase the flow rate.
Be sure that the isolation valves are properly adjusted.
Be sure that the inlet filter screen is clean.
Be sure that the outlet restrictors and aeratots on showers and/or
faucets are clear.
Be sure that there is no plumbing crossover by shutting off the inlet
isolation valve and opening an hot water outlets served by the Tronic
3000C Pro. If there is a steady flow, then cold water is flowing into
hot water service lines and back-pressuring the Tronic 3000C Pro.
This condition must be fixed or the heater wil not work properly.
TRONIC 3000C Pro