Paul santos 570 DC, Руководство по эксплуатации, Страница: 34 / 44

30 System Functions EN
3.10.3 Malfunctions (or Problems) not Displayed
This section gives an overview of the malfunctions (or problems) that are not displayed.
Problem / Malfunc-
tion Cause Check / Remedy
All OFF Supply voltage
Check the fuse on the control PCB.
• If the fuse is OK the PCB is defective.
No supply voltage
Mains power supply has failed.
High air delivery
temperature in sum-
mer Bypass remains closed
Lower
the comfort temperature.
The santos is still in winter mode. Wait until the santos switches to sum-
mer mode.
Low supply air tem-
perature in winter Bypass remains open
Increase the comfort temperature.
No or too little sup-
ply air; shower re-
mains wet Filter clogged
Replace the filters.
Valves clogged
Clean
the valves.
Heat exchanger clogged with
dirt
Clean the heat exchanger.
Heat exchanger frozen
Thaw the heat exchanger.
Fan dirty
Clean
the fan.
Ventilation ducts clogged
Clean the ventilation ducts.
The santos is set to frost mode Wait until warm-up phase occurs
Unusual
noises Fan bearings defective
Replace fan bearings.
Fan settings
Change
ventilation control settings.
Scraping noise
• Trap is empty
• Trap does not seal
Install the trap again.
Whistling noise
• Air leak somewhere in the system
Seal the air leak.
Air flow noises
• Valves connections with duct not
properly sealed.
• Valves not open sufficiently
Re-fit the valves.
Reset the valves.
Leaking condensa-
tion Condensation drain clogged
Clean the condensation drain.
Condensation from the exhaust air
duct does not flow into the condensa-
tion tray
Check
whether the connections
are properly joined.
Wired 3-position
switch does not
function Wiring not correct Check the circuit of the
3-position switch by measuring
the voltage:
• Voltage
only between N and L3:
[The fans operate at level 1].
• Voltage
only between N and L3 and N and
L2: [The fans operate at
level 2].
• Voltage
only between N and L3, and N and L1
or between N and L3, N and
L2, N and L1: [The fans operate at
level 3].
Switch is defective