High pressure switch (HP)
Possible cause 1: Air in the primary circuit.
Possible cause 2: Not enough primary flow over the heat pump.
Possible cause 3: The filter on the primary circuit is blocked.
Electric heater (EK)
Possible cause 1: The electric heater miniature circuit-breaker
has tripped.
Possible cause 2: The electric heaters overheat protection has
tripped.
Alarm
(HP)
High press. switch
040622 16:08:15
Info
Ackn.
Note
Increase the speed of the
primary pump:
Alarm
(EK)
Electrical cassette
(EE) 040622 16:08:15
Info
Ackn.
Note
Control panel
Controls and status indicators
Power switch (ON/OFF)
Operating status
Electric heater status
Hot water status
Alarm status
Heat
Heat.
Info
Info
Menu
Menu
Rego 637
K1
040622 16:08:15 Ma
Heat.
Info
Menu
Reg 637
K1
040622 16:08:15 Tu
Heat
Info
Menu