SMA HM-20 User Manual

18 Troubleshooting
SMA Solar Technology AG
Operating manualHM-20-BE-en-19122
Problem Cause and corrective measures
The system setup assistant cannot
establish a connection to the
SunnyHomeManager.
It is possible that the SunnyHomeManager is not properly connected to the
router.
Corrective measures:
• Ensure that the SunnyHomeManager is correctly connected to the router
(see Section8.3.2, page26).
The system setup assistant cannot
establish a connection to the
SunnyHomeManager.
DHCP is possibly not activated on your router or there is a proxy server in your
network. For this reason, SunnyHomeManager cannot establish a connection to
SunnyPortal.
Corrective measures:
• Establish the connection to SunnyPortal using the
SunnyHomeManagerAssistant (see Section18.6, page130).
The system setup assistant cannot
establish a connection to the
SunnyHomeManager.
The Sunny Home Manager might have already been assigned to a system in
SunnyPortal with your e-mail address.
Corrective measures:
• Delete the SunnyHomeManager from the PV system (see Section11.9,
page69).
The system setup assistant cannot
establish a connection to the
SunnyHomeManager.
The SunnyHomeManager might have already been assigned to a different sys-
tem in SunnyPortal, for instance, if you have bought the SunnyHomeManager
second-hand.
Corrective measures:
• If possible, contact the previous owners and ask them to delete the
SunnyHomeManager system in SunnyPortal.
The system setup assistant cannot
establish a connection to the
SunnyHomeManager.
It is possible that the SunnyHomeManager is not correctly connected to the
router.
or
It is possible that the SunnyHomeManager is not supplied with voltage. In this
case, all LEDs on the SunnyHomeManager will be off.
Corrective measures:
• Ensure that the SunnyHomeManager is correctly connected to the router
(see Section8.3.2, page26).
• Ensure that the SunnyHomeManager is supplied with voltage.
• If the SunnyHomeManager is correctly connected to the router and is
supplied with voltage but all LEDs remain off, contact Service.
The system setup assistant cannot
establish a connection to the
SunnyHomeManager.
It is possible that the SMA device is not correctly connected to the router or is not
supplied with voltage.
Corrective measures:
• Ensure that the SMA device is correctly connected to the router and is
supplied with voltage (see SMA device documentation).

SMA HM-20 Specifications

General

Brand	SMA
Model	HM-20
Category	Measuring Instruments
Language	English