DaveMartin

Feedback from GJD was that all bases had been covered and that the next thing we should do is swap the receiver, so will raise another ticket to arrange RMA.

Have posted query to GJD referring to this thread in case they can shed any light.

“The three detectors were each paired with a receiver channel successfully. After pairing, all three indicators (RF1/2/3) on the receiver pulse every 5 seconds.” Press the channel button on the receiver. If a detector is learnt onto the channel, you will get three beeps. If you get a single beep, there is no detector learnt. Use this to check if something is learnt. Have done this already, detectors pair successfully (3 beeps). Have tried un-pairing (long press per last para on p3 of manual) and then just get a single beep; re-pair and get three beeps again when checked. “The problem is that even though the detectors seem to be detecting, there is no resultant indication at the receiver, despite the RF link being up.” The LED next to the channel button will flash on detection. If the detector is learnt, bring the detector to the receiver and wave your hand in front of it. See if the brings on the LED on the channel. As we said in the original ticket, there is never any flash from the channel LED (other than when pairing) “Have tested this with both the CCTV outputs (which is the primary purpose) and also the 'A' outputs.” When testing the relay, there is a small resistor going across it. Don’t use continuity test as this doesn’t always work because of the resistance. Use resistance to check if the relays contacts are functioning on detection. As per ticket we've tested with meter (ohms) and scope, not just continuity tester. No indication on either the CCTV outputs or the 'A' outputs. “we think each channel's detection indicator should illuminate for the duration of the detectors' CCTV timer - they never illuminate.” May indicate that the detector isn’t learnt. They are definitely learnt (as above). Warble on first pairing, thren three beeps. Un-paired chanell = "Loss of RF" 1/2/3 never illuminated. Paired channel, "Loss of RF" 1,2 or 3 as appropriate flashes every 5 seconds. Another thing you can try is as follows. Make sure one of your channels is blank. Default one of the detectors (remove one battery, hold down the programming button, put the battery back on while holding the button down, keep it held down for 10seconds). Then press the programming button nine times, and hold it down on the ninth for about 15seconds. Relearn the detector onto the blank channel, then give at a test. As per ticket, we have already defaulted the detectors as per the instructions in the table at the top of page 4 of the manual and on the A4 replacement sheet, both of which say to press 7 times. We have done this, and the parameters do seem to reset (range, CCTV duration etc. go back to the default values shown in those tables). Have also generated a new random code (9 presses + hold), cleared a channel and re-paired, no improvement. Have re-set as per your battery-out method & generated new code & re-paired onto empty channel - no change at all. The RF continuity test (8 presses + hold) never shows any indication on the receiver. We really think there's a duff receiver.....

Purpose for the report is that, as a system, its absolutely not working. Unfortunately its not obvious from the above when your operator kindly transferred this from a support ticket (983736) to the forum, but we submitted a support ticket and then a follow-up. In the first ticket, we said we thought that the fact that the three RF indicators were flashing meant that an RF signal was being received; however in the follow-up ticket (the last three paragraphs) we had identified (especially the very last paragraph) that understanding was wrong and that it looked more like the RF reception isn't right. To summarise, we believe the detectors are at least detecting, but there's no alarm detection shown from the RFX-3 receiver. The general receiver 'traffic' LED (with the antenna icon in the PCB screen print) does flicker, even in an RF-quiet environment; and we now understand the that the flashing of the three LEDs RF1/2/3 is indicating loss-of-signal rather than reception.