9
Troubleshooting the sauna heater
Information!
Contact the dealer during the guarantee period in the event of faults.
See the instructions for the control panel (Pure, Elite) for details of faults not covered in this user guide.
Table 1: Troubleshooting the sauna heater
Symptom Possible cause Remedy
Heater element
in heater stone
compartment does
not warm up.
1. Temperature settings on control panel do not cor-
respond to operating status?
2. Some of the RB-box/TS-panel fuses on the main
switchboard can have tripped out?
3. Heater element faulty?
4. Internal RB-box/TS-panel PCB fault?
5. Internal temperature cut-out triggered? For
more information, see the Temperature cut-out
section.
1. Set temperature to correspond to heater element
operation in stone compartment. The set sau-
na temperature must be higher than the actual
ambient temperature in order for the heater to
activate.
2. Check and replace/reset the fuses in the main
switchboard.
3. An authorised electrician is required to fi nd the
fault.
4. An authorised electrician is required to fi nd the
fault.
5. Resetting the temperature cut-out required an
authorised electrician.
Lights in the sauna
do not come on
when switched on
at the control panel.
1. Internal glass fuse in RB-box faulty?
2. Is lighting connected via RB-box?
3. Internal RB-box PCB fault?
1. Switch off at main power switch on RB-box and
replace glass fuse.
2. Verify with authorised electrician who performed
installation of RB-box/lighting.
3. An authorised electrician is required to fi nd the
fault.
Heater does not
work, control panel
does not light up.
1. The main power switch is off ?
2. Or all heater fuses on the main switchboard can
have tripped out?
3. Loose contact in cabling between RB-box and
control panel?
4. The specifi c 12VDC output on one of the PCB's
RS485 modular jack to the control panel is faulty
due to short-circuit?
5. Transformer on PCB in RB-box faulty?
6. Control panel faulty?
1. Turn RB-box main power switch.
2. Check and replace/reset the fuses in the main
switchboard.
3. Switch off RB-box main power switch and connect
each/paired cable to the control panel. Switch on
RB-box main power switch again. If this does not
help, an authorised electrician is required to fi nd
the fault.
4. Requires an authorised electrician to fi nd the
fault, faulty 12VDC output is indicated by LED out
next to the RS485 output. NB: if the fault is in the
RJ10 cable to the control panel, do not click into
a working vacant RS485 outlet to avoid causing a
fault in that outlet. RJ10 cable must be replaced/
contacts fi tted in the event of a fault.
5. An authorised electrician is required to fi nd the
fault.
6. An authorised electrician is required to fi nd the
fault.
The heater fuses/
ground fault inter-
rupt device on the
main switchboard
trip as soon as the
heater is turned on.
1. There is a short-circuit at the heater GND. Can
be due to a faulty heater element?
2. Lighting connected to and controlled via the RB-
box faulty?
3. The heater has not been used for a long period,
causing an insulation fault in the heater ele-
ment?
4. Heater has had too much water poured on it?
5. Other internal heater fault?
1,2,3,4,5. Do not use the heater, switch off at main RB-
box switchboard trip and disconnect heater fuses
on the main switchboard. An authorised electrician
is required to fi nd the fault.