In the first instance please read through the manual & watch the YouTube set-up / operating guide on our website www.radiant.com.au – if you are unable to resolve your issue please refer to the steps below
ISSUE: - Err (Error) message on screen or floor temp reading inaccurately high (e.g. 38 deg C)
REASON: Floor sensor not connected or faulty/damaged
Solutions: – replace sensor if in conduit, switch to back up sensor if 2 installed (most Radiant installs not kits) OR simply follow menu instructions to switch to AIR sensing. (Power off – Press Menu – change Menu 01 to A (Air) – Press done – Power back on – NOTE Do NOT select AF or it will not work
Floor heating will work just as well on AIR sensing as Floor sensing in almost all cases.
Problem - My floor heating won’t heat up or doesn’t get warm enough
Floor heating is designed so that the floor should get comfortably warm, but it will not feel ‘hot’ to the touch – typical recommended floor temperatures would be 22-26 deg C for living areas & 24-28 deg in bathrooms.
If the floor is not getting warm, possible causes are:
• Incorrectly programmed
• Incorrectly wired
• Faulty thermostat
• Floor sensor not installed (or damaged/faulty)
• Damage or fault with floor heating cable
Solutions:
Check the screen, is it on A (air sensing) or AF (Air with floor limit) or F (Floor sensing) – what temperature does it read? It is easier to test when on Floor sensing (F) if sensors is installed so first change to F using menu as described in previous solution above.
Press Mode so that a picture of a hand is displayed (press & hold schedule if you have the premium square faced version) then press the up arrow to increase set temp a few degrees (e.g. 28 degC) then wait a few seconds. You should hear a click & see a little flame symbol appear.
If the screen goes blank or it trips the breaker as soon as the heating clicks in, please contact the installer/electrician to test the cable (test resistance & continuity & report back for further guidance)
If the screen remains on with flame symbol displayed, wait 1 hour & re-check temperature. If it is increasing then the floor heating is working but you may need to increase the scheduled timed to achieve the desired temperature – see separate sheet on operating recommendations. If no increase in temperature after 1 hour, get installer/electrician to check wiring & test heating cable (resistance & continuity) & report back for further guidance.
Problem – My floor heating won’t turn off
Reasons: Incorrectly programmed or faulty thermostat
Solutions: Take a note of the temperature reading & confirm the flame symbol is displayed on the screen. Change Mode to Manual as described above & then down arrow to drop the set temperature below the current displayed temperature. Wait a few seconds & you should hear a click & see the flame symbol go off. Re check in 1 hour & confirm displayed temperature is dropping. If so then it is most likely a programming issue or the ‘off’ temperature is set too high – re-program & set the ‘off’ temp to a lower temperature e.g. 10 deg C In the unlikely event that the temperature does not drop & the floor continues to heat, switch off the circuit at the switchboard (if on a separate circuit) & contact Radiant for a replacement thermostat unit.