Bosch TRONIC 3000C Pro US7, Руководство по установке и эксплуатации

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6 720 647 005 (2014/04) TRONIC 3000C Pro
14 | Troubleshooting
6.1 For the Installer
6.2 For the User
Symptom Cause What to 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. 3 ). 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 603-552-1100 www.bosch-
climate.us
Water too cold -neon
light on. Water flow too high. Adjust water flow (

see Table 4 ).
The power selector screw not all
the way to “HI”. Change the power select screw to “HI”,

see Fig. 5 .
One element is not working. Switch off the electricity and check the resistance of the elements
(

see Table 4 ).
The power supply voltage has
dropped. Check the supply voltage to the heater (

see Table 4 ).
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 7
Symptom Cause What to 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.
Water too cold -
neon light on. The water flow rate is too high. Adjust the flow rate with hot water outlet service valve.
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 main supply of water flow is too
low. Increase the water flow.
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 (

see section 5.2). Always turn the hot tap
full on.
Table 8