Raychem TA - Troubleshooting and Error Codes; Error Codes

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If the thermostat regulation works with the floor sensor only,
the cement slab temperature will be limited to 20°C.
If the thermostat regulation works with the room sensor
only, the ambient temperature will be limited to 20°C.
In both cases of power supply failure or main switch put on
‘Off’ position by the user during this function progress, the
thermostat will resume from where it stopped (first warming
function time saved in memory).
This function can be stopped at any time by setting the
installer menu number 4 to ‘OFF’
At the end of this first warming function, the learning
function begins.
4.3.5 Menu 5: Heating Running Time
Running time (the time in the course of which the floor
warming system is powered)
3’ : 3 minutes [0..59] 5h : 5 hours [1..23]
7d : 7 days [1..30] 1m : 1 month [1..99]
5. Trouble shooting
5.1 Error codes
Number Error type
ER 1
Wrong floor sensor (100 kΩ)
ER 2
Short circuit on floor sensor
ER 3
Open circuit on floor sensor
ER 4
Short circuit on room sensor
ER 5
Open circuit on room sensor
ER 6
Other error