Hi. I used to have a problem with my IHD not correctly monitoring my gas and electricity usage but over the last 2 months, this problem is sorted apart from my gas daily standing charge not being displayed.
This charge still gets paid even though it isn't being shown !
I am starting this topic as the communication hub indicator lights have changed their sequencing.
What used to happen was the SW, WAN, HAN and GAS indicator lights used to simultaneously flash once then go out for 4 or 5 seconds and then the sequence would repeat.
However I have noticed this morning that this has changed with the WAN light flashing 7 times then the remaining SW, HAN and GAS lights flashing once then flashing once more once the 7 WAN flashes have completed.
Anyone else get this ?
Best answer by Jequinlan
Updated on 10/09/20: For a guide on SMETS2 comms faults, see this topic
What do the indicators mean on a SMETS2 Comms Hub?
On the front of a comms hub there are a series of LED indicators showing the functional status of the metering system. Each LED has a legend as shown below:
SW - Software
This shows the status of the hub’s software.
WAN - Wide Area Network
Shows your communication hub’s ability to communicate with your supplier. This light will be off if your meter is using the MESH network to communicate.
MESH - Mesh Communications Network
If you have a SK2 or SKU3 type of Communications Hub, then both WAN and MESH are active, and will display the slow-flash from these indicators if all is well.
If you have a SKU1 (85% of houses do), then the MESH indicator will always be off because that section of electronics isn’t present.
HAN - Home Area Network
This light shows the connection status of your electricity meter, gas meter and IHD with your communications hub on the HAN (Home Area Network).
GAS - Gas Meter
This light tells you if a gas meter is connected. If you don’t have a gas meter installed this light will be off.
The frequency of flashing relates to the status of the function as follows:
- Power Up
To allow the operator to see that all LEDs are working they are shown without flashing for a short period after power up.
Fast flash rate of 2 flashes per second means that there is an error. Call your supplier if this does not change after 48 hours.
A flash rate of 1 flash per second means that the process is in a transient state such as making a communications connection.
A slow flash rate of 1 flash per 2 seconds means that the process is in its normal state.
The communications hub is powered down.
I am hoping your meter is a SMETS2 hub. I don't see anything specific on 7 flashes based on the info above, perhaps look and see if it is in fact 2 flashes a second (error)?