Failures; Alerts; Troubleshooting - Gebwell GEMINI Installation, Operation And Maintenance Manual

8770 Room temp 2
8770 Room setpoint 2
8773 Flow temp 2
8773 Flow temp setpoint 2
Instantaneous water heater's
8827
pump (Q34) revolutions
8830 DHW temp 1 (B3)
8832 DHW temp 2 (B31)
8840 Hours run DHW pump
8841 DHW pump start-up counter
DHW consumption
8852
(B38)
DHW temp setpoint for instan-
8853
taneous water heater
8950 Common flow temp (B10)
8951 Common flow temp setpoint
46
°C
°C
°C
°C
%
°C
--- *
h
pcs
temp
°C
°C
°C
°C

14 FAILURES

In most cases, the controller detects a malfunction of the heating
system and indicates this with a failure notification appearing on
the display. When failure notification displays on the display,
record the alert exactly to the service book to facilitate the
maintenance operations.

14.1 Alerts

When the alert is active, the
pump's display.
More information about the alert can be found on the info page.
Always try first to find out for yourself the malfunction with the
help of the trouble shooting table. If you cannot detect the mal-
function, contact a qualified technician.

14.2 Troubleshooting

If failures are not displayed on the screen, follow the instructions
below.
Basic measures:
1. Check all switches
2. Inspect the house as well as the heat pump fuses
3. Check the fault current circuit breaker
Room temperature too low:
15. Heat pump in incorrect operating mode
16. Set the heat pump heating functions into the right
mode.
17. Thermostats of radiators / floor heating are switched
off
18. Turn on the thermostats in so many rooms as possible
19.
Adjust the room temperature on the menu Heating
circuit instead of switching off the thermostats
20. The automatic set point is too low:
21. Raise the Comfort set point on the menu Heating cir-
cuit
Increase the heating curve slope set point
o
on the menu Heating circuit
Set the maximum output water set point
o
sufficiently high on the menu Heating cir-
cuit
•
Program for heating circuit is switched on
Go to menu Time program heating circuit
o
and adjust the time program to wanted level
•
Air in the heating system
Vent the heating system
o
•
Valves closed between the accumulator and the heat-
ing circuit
Open the valves
o
•
External switch for the room temperature drop acti-
vated
Check any external switches
o
symbol appears on the heat
Gebwell GEMINI