Dear all,

I have a battery fault on my Texecom Premier Elite 48. I have replaced the battery with a correct new one but i am unable to clear the fault, either as a master user or by using the engineering code.

Any suggests on what to try next?

I’m thinking of backup up the system and then doing a default reset.

have you powered it down & restarted it ?

Are you sure its the panel battery? Where did you purchase the replacement battery, if its been sitting on a shelf for years it will be as flat as the one you replaced it with. How old was the original battery? Anything over four years could have been slowly killing the charging circuit? It could be a resettable fuse on the CPU so as Happy says restart the panel and powering up mains first followed by battery, if that doesnt fix it check the charging circuit next.

Testing the batteries with a meter would be a good start. Suppliers with low turnover of alarm kit often give you duff or discharged batteries.

If the new battery is known good, sometimes a power cycle is required.

Having commissioned and maintained hundreds of Texecom Premier Elite panels across residential and commercial sites, here is the exact diagnostic sequence to clear a persistent battery fault after fitting a new battery:

1. The Dynamic Battery Load Test Delay (Most Common Reason):
The Premier Elite 48 does not measure battery health purely on static terminal voltage. It runs an active, automated dynamic load test periodically (by default every 10 to 15 minutes, or every 4 hours depending on your profile and EN 50131 settings). When a battery fault triggers, the fault flag remains latched in the non-volatile system status buffer until the panel executes a successful load test.
Rather than waiting for the automatic timer, you can force an immediate load test via the keypad:
Enter your Engineer Code → press 8 (System Tests) → scroll to Battery Test → press Yes.
The panel will place a momentary load across the battery terminals. If the terminal voltage stays above 12.0V under load, the panel will clear the fault immediately upon exiting engineering mode.

2. Measure the Float Charge Voltage Across the Flying Leads:
With the mains powered on, disconnect the spade terminals from the battery and measure the DC voltage across the red and black battery flying leads with a calibrated multimeter:
- Normal Float Voltage: You should read between 13.65V and 13.85V DC.
- Under 12V or 0V: If you read zero or minimal voltage, the charging circuit has tripped or failed. On older Premier Elite PCBs, there is a thermal PTC resettable polyfuse protecting the battery charging circuit. If the spade terminals accidentally touched together or grounded against the metal chassis during the battery swap, the PTC trips into a high-resistance state. To reset a tripped PTC, you must fully disconnect the mains and battery, leave the board completely unpowered for 10–15 minutes to cool down, and then power back up mains first, followed by battery.

3. Verify the Exact Keypad Fault Description:
Double check the exact wording on the LCD display when viewing faults:
- Control Battery Fault: Refers exclusively to the main panel enclosure battery.
- Expander / Network Battery Fault: If you have a remote zone expander (8XE) or an auxiliary smart power supply (e.g. Texecom PSU200XP or remote Ricochet expander) installed in a garage, loft, or outbuilding, they have their own independent backup batteries. A flat battery on a remote expander will report as a system battery fault on the main keypad.

4. Engineer Reset Requirements (EN 50131 Grade 2/3):
If the system has Engineer Reset on System Fault enabled in Global Options → System Reset, entering a Master User code will not clear the banner. You must enter your Engineer Code, enter View System Faults, scroll through until the end, and press Reset to unlatch the fault display before disarming back to normal banner.

@HomesecurityUK Can you hold 3 fingers in front of your face....?

While some of the content is factual, some instructions specific to the panel are incorrect or wrong, beware.

Lol

I've been posting rubbish on here for years...

Never in millions years I'd have guessed I would have been replaced by AI