Texecom Premier Elite Fault Codes: Field Diagnosis Guide
Texecom Premier Elite panels are everywhere in UK commercial and domestic security installations. The Premier Elite 48, 88, 168, and 640 share the same core firmware logic, so once you know how to read the event log and interpret fault messages on one, you can work confidently across the range.
This guide covers the fault conditions you'll actually encounter on site — what the display is telling you, what causes it, and how to clear it.
How Premier Elite Reports Faults
Faults appear in two places:
Panel LCD — the keypad display shows a one-line summary (e.g. "ZONE FAULT Z001") and the LED array illuminates relevant indicators. Scrolling through active faults is done with the arrow keys once you're in engineer mode (default code: 9876 unless changed on commissioning).
Event log — stores the last 1,000 events. Access via engineer mode → System → View Log. The log timestamps every event, so you can see the sequence of faults and whether the condition is intermittent.
Wintex/TexecomConnect PC software — gives a cleaner view and lets you export the log, test zones individually, and walk the detector map. Worth connecting if the fault is complex or intermittent.
Zone Faults
ZONE FAULT / Zone Open Circuit
The panel sees a resistance outside the end-of-line (EOL) configuration for that zone. Premier Elite uses the following zone resistance values by default:
| Zone state | Resistance | |---|---| | Normal (closed, EOL only) | 1kΩ EOL resistor | | Alarm | Short circuit (< 100Ω) | | Tamper | > 5kΩ | | Open circuit | Broken wire |
What to check:
- Is the EOL resistor present and correct value? Premier Elite panels default to 1kΩ EOL — if a detector or device was wired by someone using a different value (e.g. 4k7 from a different brand), the panel will read it as a fault.
- Measure resistance across the zone terminals at the panel (zone disconnected). Should read the EOL value.
- Walk the zone. Any detector that's been physically damaged, had a lid removed, or has a loose terminal will break the circuit.
ZONE TAMPER
Resistance exceeds the tamper threshold — typically caused by a detector lid off, a motion detector knocked open, or a break-glass unit with a loose terminal block.
Quick check: Pull each device off the zone one at a time (with the panel disarmed in engineer mode). When the tamper clears, you've found the device. Re-seat the terminal connections and check the lid is fully engaged.
ZONE SHORT
Zone resistance has dropped below the alarm threshold while the system is in engineer mode or unset. Causes:
- A damp or flooded detector housing (common in plant rooms and car parks)
- Rodent damage to the zone cable
- Two zone wires shorted in a back box
- A PIR detector with a failed lens that's stuck in alarm state
Power Supply Faults
MAINS FAIL
AC mains supply to the panel PSU has been lost. The panel runs on standby battery — most Premier Elite variants carry 7Ah batteries, which give around 12 hours in standby per BS 4737/EN 50131 calculations.
Action on site:
- Check the fuse or MCB feeding the panel — often a 3A or 5A fuse on a dedicated spur.
- If mains is present at the spur but the panel shows mains fail, the panel's internal PSU fuse may have blown. Premier Elite panels use a 1.6A anti-surge fuse on the mains input — access is inside the panel cabinet.
- If mains has genuinely failed (power cut), the fault will clear automatically when supply is restored.
BATTERY FAULT / BATTERY LOW
The standby battery voltage has dropped below threshold (typically 11V for a 12V battery) or the battery is not accepting charge.
Diagnosis:
- Disconnect battery leads and measure open-circuit voltage. Below 12.0V under no load suggests the battery is sulfated or at end of life.
- Premier Elite charges at a trickle — a healthy battery should reach 13.6–13.8V within a few hours of mains being restored.
- Typical battery life is 3–5 years. If the installation is older than that, replace as a matter of course.
AUX POWER FAULT
The auxiliary 12V DC output (used to power external devices — keypads, additional sounders, expander boards) is overloaded or shorted. Each Premier Elite PSU has an AUX output rated at around 1A.
Check: Disconnect AUX-powered devices one at a time until the fault clears to identify the overloading device.
Communication Faults
NO COMMS / ARC COMMS FAIL
The panel has lost contact with the monitoring station (ARC). This means the dialler path (IP, PSTN, GPRS, or dual-path) has failed to send a heartbeat or poll within the configured timeout.
Check:
- Is the broadband connection active? If the panel uses IP path (ComIP or DualCom), an internet outage will trigger this.
- PSTN path: is the telephone line connected at the panel and active? Test with a handset.
- Has the ARC's receiving equipment changed IP address or port? Particularly relevant after ISP changes.
- For GSM/GPRS diallers: check signal strength indicator on the module. Rural sites often get marginal signal.
This fault does not prevent the system from functioning — the alarm will still sound and outputs will still activate. But it means the ARC won't receive signals until communications are restored.
ENGINEER RESET REQUIRED
After certain fault conditions (typically a confirmed alarm on a Grade 2 or above system, or a duress activation), the panel requires an engineer-level code reset before it will re-arm. This is a deliberate security feature per EN 50131.
Access engineer mode (code 9876 default), navigate to Reset → Engineer Reset. The panel will clear the latched condition and return to unset.
Expander and Peripheral Faults
EXP FAULT / EXPANDER NOT FOUND
A zone expander, output expander, or keypad expander that was previously enrolled has lost communication on the bus.
Texecom uses two bus types:
- Com2400 — the older RS-485 bus, used by Premier Elite expanders. Check the bus wiring continuity and the termination links. Termination resistors (120Ω) should be fitted at each end of the bus only, not at intermediate nodes.
- Ricochet — wireless peripheral protocol. Loss of a wireless device may indicate a dead battery, RF interference, or the device has been moved out of range.
For wired expanders: measure bus resistance between COM and DATA terminals (panel disconnected). Should be ~120Ω with termination in place at both ends.
KEYPAD FAULT
Keypad has gone offline. Causes: bus fault (as above), power cycle loop (keypad consuming too much AUX current), or physical damage to keypad.
Remove the keypad from the bus — if other peripherals immediately recover, the keypad is pulling down the bus. Likely a faulty keypad PCB.
Log Messages to Know
| Log entry | Meaning | |---|---| | USER SET / USER UNSET | System armed or disarmed by user — note the user number to identify who | | ENGINEER ON / ENGINEER OFF | Engineer mode entered and exited | | WALK TEST STARTED | Engineer began device walk test — all activations logged but not transmitted | | CONFIRMED ALARM | Second activation within the confirmation window — triggers confirmed alarm transmission to ARC | | DURESS ALARM | Duress code used — alarm triggered silently with ARC notification | | LINE FAULT | PSTN line has been cut or has gone high impedance |
Clearing Faults
Most faults on a Premier Elite clear automatically once the cause is resolved:
- Zone faults: clear when zone resistance returns to normal range
- Mains fail: clears when mains is restored
- Comms faults: clear when comms path re-establishes
Latched faults (engineer reset required) must be cleared manually via engineer mode.
For persistent intermittent faults, the event log is your friend. Export the log, look at the timestamps, and identify the pattern — is it temperature-related (morning frost, afternoon heat)? Is it after certain user operations? That narrows the root cause significantly.
Texecom Technical Support
For firmware-specific issues, unusual log messages, or panel configuration queries, Texecom's technical support line is available during business hours. They can also assist with Wintex license queries and remote diagnostics via TexecomConnect if the panel has an IP module fitted.
Part numbers, firmware versions, and detailed wiring diagrams are available on the Texecom partner portal for registered installers.