Nibe ERS S40-350, Installer Manual

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In most cases, the main product notes a malfunction (a
malfunction can lead to disturbance in comfort) and in-
dicates this with alarms and shows action instructions
in the display.
Troubleshooting
If the operational interference is not shown in the display
the following tips can be used:
BASIC ACTIONS
Start by checking the following items:
• That the main product is running or that the supply
cable to ERS S40 is connected.
• Group and main fuses of the accommodation.
• The property's earth circuit breaker.
• Temperature limiter for ERS S40 (FQ10).
HIGH OR LOW ROOM TEMPERATURE
• The re-heater (EB18) is not activated.
– Activate the re-heater in menu 7.2.11.
LOW OR A LACK OF VENTILATION
• Filters (HQ10), (HQ11) blocked.
– Clean or replace the filter.
• The ventilation is not adjusted.
– Order/implement ventilation adjustment.
• Exhaust air device blocked or throttled down too
much.
– Check and clean the exhaust air devices.
• Fan speed in reduced mode.
– Enter the main product’s menu 1.2.1 and select
"normal".
• External switch for changing the fan speed activated.
– Check any external switches.
HIGH OR DISTRACTING VENTILATION
• Filters (HQ10), (HQ11) blocked.
– Clean or replace the filter.
• The ventilation is not adjusted.
– Order/implement ventilation adjustment.
• Closed, too much choke or blocked ventilation device.
– Check and clean the exhaust air devices.
• Fan speed in forced mode.
– Enter the main product's menu 1.2.1 and select
"normal".
• External switch for changing the fan speed activated.
– Check any external switches.
• Silencers not correctly installed.
– Check the silencers.
NIBE ERS S40-350 Chapter 8 | Disturbances in comfort 22
8 Disturbances in comfort