None of my Nobo Orion 512 controlled panel heaters are working – they are all cold and refuse to heat up. What should I check?

Carry out the following steps:

• Make sure the heater is switched on at the wall and the power switch on the side of the heater.
• On the Orion 512, push the slider switch to “SET PROGRAM”.
• Press the ZONE button until Zone 11 is shown 
• Press the DAY button and for each day, check that the 0 to 24 LED bars are all RED. If any of the LEDs are GREEN press the RED program button repeatedly to change all the LEDs to RED for that day. Repeat for each day of the week, checking all LEDs are RED.
• Press the ZONE button until Zone 12
• Press the DAY button and for each day, check that the 0 to 24 LED bars are all RED. If any of the LEDs are GREEN press the RED program button repeatedly to change all the LEDs to RED for that day. Repeat for each day of the week, checking all LEDs are RED.
• If any of the time LEDs are GREEN in Zone 11 or 12, that would place the whole system in a Shutdown or Frost protect state, giving little to no heat for that time period.
• Slide the switch to OPERATION once both Zone 11 & 12 are checked.

If you use devices such as Internet Home plugs (devices to send internet across the mains), these will interfere with the signals from the Orion 512 and the heaters. (Wi-Fi is not an issue, it is only mains borne signal internet adaptors). Try unplugging all the internet home plug adaptors to see if the heaters then start to respond. You could also try powering the Orion 512 timer off, then pressing the SUN/MOON button on the heater thermostat control to bring on a red light beneath the button. Turn the thermostat slider up to the maximum position and you should start to feel some heat. If you do not, the heater may have failed. 

See attached instructions for:

Orion515 wall timer

Installation Information

RS512 & RSX512 receivers for towel rails / hot water tanks

C4N panel heater & 5124 thermostat module information

Note, this system has been out of production for well over 10 years and spare parts are no longer available.