7605 BTS Notification

Severity:	Object affected:	Object state:	Module/Unit:
Minor	BTS	Enabled	ECxA
Fault reason:	Instruction:
ECxx RTC module cooling fan speed has increased from the set speed.	The cooling fan speed has increased substantially from the commanded fan speed. 1. Check the ESMA operational voltage as an increased ESMA voltage could lead to overspeeding of the fans. 2. Replace the fan unit. 3. Replace ECxx.
ECxx RTC module cooling fan speed has reduced from the set speed.	The cooling fan speed has reduced substantially from the commanded fan speed. 1. Check that nothing obstructs the fan(s) from rotating. 2. Clean the fan unit of dust and/or dirt. 3. Replace the fan unit. Note: If "Temperature high/ dangerously high" and/or 7621 alarm(s) are also active, perform these actions as soon as possible.
ECxx RTC module cooling fan(s) report no rotation.	One or more fans of the ECxx RTC module are not rotating. There is a danger of overheating. 1. Check that the fan unit cable is correctly mated to ECxx. 2. Check that there are no obstacles preventing the fan(s) from rotating. 3. Clean the fan unit of dust and/or dirt 4. Replace the fan unit. 5. Replace ECxx.
ECxx RTC module has detected no fans.	ECxx RTC module has not detected a fan unit at start up. There is a danger of overheating. 1. Check that the fan unit cable is correctly mated to ECxx. 2. Replace the fan unit. 3. Replace ECxx.
ECxx RTC module temperature dangerously high.	ECxx RTC module has detected that its internal temperature has exceeded +65C/+149F. 1. Ensure that the ambient temperature of the base station is below +50C/+122F. 2. Check if any fan alarms are also active. If active, refer to fan alarm instructions to resolve. 3. Replace the ECxx.
ECxx RTC module unable to read internal temperature sensors.	There is no temperature measurement in the ECxx RTC module.  All temperature sensors inside the module are broken. Fans are rotating at maximum speed. 1. Replace the RTC. Note: If fan alarm(s) are active at RTC, perform this action as soon as possible.
The cooling fan speed of RTC module has increased substantially from the commanded fan speed.	1. Check the ESMA operational voltage as an increased ESMA voltage could lead to overspeeding of the fans. 2. Replace the fan unit. 3. Replace ECxx.