40
TROUBLESHOOTING ERROR MESSAGES
LIMITED NETWORK
DISPLAYED MESSAGE
CONDITION/INDICATES
CHECK/REPAIR
“Limited Network”
The CM (communication module) is unable to
acquire an IP address.
Possible Causes:
• Customer’s DHCP router is failing to assign an IP
address for the CM
• Customer’s DHCP server is failing to assign an IP
address for the CM
Service Note:
Press the Display Button on the CM several times to
silence the alarm if it is sounding - see Figure 2 on
page 6 and Display Button Operation on page 30.
• Perform the Pre Installation Internet Check on
page 5.
• Reboot the CM. Disconnect the round “5 VDC”
power plug to the CM for 10 seconds. Reconnect
the round “5 VDC” power plug to the CM and wait
5 minutes to establish a connection.
• Contact the customer and/or their IT staff to cor-
rect the problem.
Correcting IP address assignment issues
ARE
NOT
the responsibility of the iCOMM™ manufac-
turer or the water heating appliance manufacturer.
The iCOMM™ remote monitoring system requires
DHCP service - see the System Requirements on
page 3.
• If all the above steps have been performed and
the problem has not been corrected - call 888
928-3702 for further technical assistance.
CM LCD Error Message