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This means there's something wrong. Call us on 1850 372 999 or +353 21 2382410 to log a call out. 
This means that the code has been entered incorrectly five times. Wait until the message clears and then enter the correct code.  
The Grantor number will be on any ESB Networks correspondence you have received.
This means that communication has broken down between the customer keypad and the meter. Try plugging it into another socket. 

Send  a completed Mast Compensation Payment Instruction Form to:

Mast Administration
ESB Networks
PO Box 29
Co Westmeath


Call 1850 372 757 or +353 21 2386555 to request a copy of the form.

The Grantor name and the name on the bank account need to match, if they don't a Mast Compensation Claim Form will need to be completed also.

The Top-Up code entered was incorrect or the meter is not in Pay As You Go mode. 
The meter has received the maximum credit and can not accept another Top-Up code at this time. 
The Top-Up code has been entered previously. The meter will not allow the same code to be entered more than once. If you press 4 you can see the last 5 codes entered. 
Your price plan has changed and the meter is looking for a 40 digit code to be entered. Please contact your electricity supplier if you do not have this code. Wait until this message clears, press the * button and then enter the special tariff change code.